Replacing an HVAC motor is a job that can be done quickly once the problem is identified. 313 Posts . All you care about is that it continues to produce that refreshing cold air you rely on to keep your Las Vegas home cool. Any ideas or other threads that have had this issue? I have a 2001 F250 supercab 4x4 with a 7.3 diesel in it. Cold Air Blows Intermittently So you went for a road trip or a long drive, and after 30 minutes of driving realized that your AC suddenly stopped working or switched to blowing warm air. Nor do you wish to. Some days it worked fine and sometimes (usually cold mornings) it would not work at all, or just work for a short period of time. Peter charged us only $202, plus performed the work at our home. First off some background info to get you in the right mode. Whenever it comes on, it blows strong and the air is cold. If you don’t see anything stuck in the condensing unit and the fan blades are turning freely and smoothly, then the likely cause is the fan motor. If you’re like most homeowners, you probably don’t understand the inner workings of your air conditioner. 2013 F150 AC & Cooling fan issues - 2013 F150 5.0 XLT 153,000 miles This past summer the AC was blowing warm. I'm now able to run the fan at a low speed and it continuously pumps ice cold air. Take the fan motor to your work station. Mechanic's Assistant: Have you checked the coolant level? All fuses good all relays good. AC Heat Pump Contactors; AC leak repair; Capacitors. © 2020 iFixit — Licensed under Creative Commons — Privacy — It’s got to be something loose or going out because slamming the glove box door causes the fan to start working again instantly. The fan relay on the control board could be acting up periodically and causing the fan to not turn on. However, there are some preliminary steps you can take to rule out other possible causes for your AC not working and confirm that the problem is, indeed, with the AC fan motor. I got it evacuated and refilled. Eddie Guzman. Aug 24 2019, 2:28pm. Blower motor for AC works intermittently. AC Blower working intermittently on 2011 Silverado. The rest of the time it works fine. Squeeze the top sides in a bit to allow the compartment to swing out and down to reveal the wiring behind. Oh yes, take the old part with you so you can match the parts. If your AC has stopped blowing air, has weak airflow, or you hear unusual noises, do a quick inspection of the fan motor. The engine revs consistently went up when the air-conditioning was activated suggesting that … Without the run capacitor in the circuit, the motor will pull excess amperage. When the fan does work it works great and there are no unusal noises. 6. Starts and stops itself. In most cases, the ideal temperature is around 150 degrees Fahrenheit. Listen for a humming sound that tells you the AC compressor is functioning. I'm in Charlotte and it's been hot and humid here and my AC stays nice and cold. Typically an iced over evaporator is the culprit. Many homeowners neglect this basic maintenance task. Waited a few days and it still wasn't working. the fan continues to run even after switching off the air conditioner. When was the last time you replaced the AC unit’s air filter? When we moved in, one of the capacitors located in the central air's outside unit was bad - called in an HVAC tech who replaced it and added a hard-charging kit. Fan Starts and Stops Intermittently If your Central A/C fan is acting unpredictably, starting on and off at random and shutting down in the middle of a cycle it could be a sign there’s an issue with the wiring or some loose components somewhere. If the thermostat isn’t the issue, the most likely problem is a stuck relay switch. So get out there and give it a smack or two! AC not working or cooling? If that isn’t the case, it could mean the motor bearings need to be oiled or that the capacitor is failing. No sound, no nothing. Learn about this problem, why it occurs, and how to fix it. The blower on my AC works normally for a while, then it stop blowing. It worked for about a week and stopped working again. Regular dusting in and around the motor hole can prevent this. Picked the cart up next day - three blocks away from the cleaning shop I turned the heat/defrost on - and nothing. Recently the heater/ ac fan has stopped working part of the time. The fan relay on the control board could be acting up periodically and causing the fan … Once this happens, your air conditioning unit is at risk of suffering more serious damage. It retained its class-leading handling as it, along with the fourth and fifth generations, had front double wishbone suspension, the advanced independent suspension inspired by Honda's racing research. When the blower stops the only air is from the vent but no fan and the display is dim and weak. How would I go about troubleshooting this? A month ago my fan would intermittently quit working. 4. If the AC is still switched on, the electricity that runs through the capacitor can result in a serious electric shock, injury, or even death. If it blows on the slow speeds, but not on the high speed, it's probably the fan switch connector and climate control panel. you will start at the blower motor itself, hotwire it with power and ground, if that works then work your way backwards in the system, the blower resister is usually next in line and a big problem on many cars. This also happens to be frequent where the cut in and cut out happen during hotter weather. The blower won't come on for 30-45 minutes after the AC has been turned off, but after that it seems to turn back on fine. Registered. 5. The technician may try to manually kickstart it. If you hear a loud rattling noise, it could be a minor issue like loose stones or debris that’s caught in the condensing unit. 2001 Silverado 4.8. That's all it took for for mine to start working again. Pick your used part probably $10. When your air conditioner suddenly breaks down, it’s difficult to know where to start in identifying the problem. I'm hoping someone can help out or let me know if you have experienced this same issue. To solve your problem you can purchase either the resistors , the plug harness or both. Still same problem. Yes, AC loses efficiency and has to work harder when it's humid. If left out in sun, A/C and fan won't come on for 5-25 minutes ... AC not working at all then might kick in after a while, sometimes not at all. The fan runs intermittently. If it doesn't blow on any speeds, it's probably the motor and/or the blower motor connector. I have a 2003 Accord with the same problem. Don't know if you got your problem fixed - it's an old post but here's what we did. If the air filter is clogged, replacing it with a new one should get the air flowing freely and strongly again. Thread starter HarryB; Start date Aug 18, 2011; H. HarryB Premium Member. As a result, electric power to the fan motor doesn’t stop and the fan continues to run. The fan blower for your ac/heater is located under the glovebox. When it does work all fan speeds work. There is more than one possible cause for a noisy air conditioner. That’s why when the capacitor stops working, so too does the air conditioner. When the fan runs intermittently, it could be one of two problems. At first when I would start up my truck the heater would start up after a few minutes of driving. A slow-turning fan will generate weak airflow. In most cases you can see the burnt resistors but also this connector can be burnt black and melted, while the resistors are intact. Air filter is clean. Outside condenser coils are fairly clean and in decent shape. Any suggestions? Rheostats can get bad spots (worn or dirty) that will cause intermittent operation when you stop the control at one of these spots. If you are near the condenser unit and it feels hotter than usual, it indicates that the fan motor may be overheating. Remove those too. Without that boost of power, the fan motor is unable to start. When it doesnt, the problem is that the compressor isnt engaging. The opposite problem can also occur, i.e. A/C and fan work when car is cold. It’s the part of the unit that pumps air through the system. Thanks for the help. AC Parts. It was full a The blower fan had completely stopped working. xCALIWEBKINGx SNFx. The morning was cool and I was quite irked that it wasn't working and figured I must have blown a fuse. Has anybody else seen this? Muddinfun, Aug 19, 2019. On the bottom of the fan you'll find 4 small screws. Honda Fit AC fan speed stopped working - 195 reports. Ok, I have a "outdoor fan" (compressor) that works intermittently. Wayne Granite Crystal Metallic 2017 Durango GT - Shaved Emblems, Nokya 2500K Foglight Bulbs, OEM Trailer Hitch @lex317. After waiting 24 hours I turn on the AC and it blows until cool. The fan motor is a fairly uncomplicated yet vital part of an air conditioner. I have a York Diamond 80 furnace and the blower motor is working intermittently. The start capacitor is a cylindrical component that supplies the electric charge that starts the condenser fan motor. I second that!!!!! Unplug the wire connector carefully using a small flat blade screw driver to move out the latch type arms holding the plug into the resistor board. The fan for my front HVAC stopped working about a week ago and it's hasn't started working since. I was having a problem with my a/c system either working or blowing hot air. AC Blower working intermittently on 2011 Silverado. The tech replaced the fan and checked the Freon and left. I've got 8000 miles on my 2014 Grand Cherokee and the AC blower fan stops working intermittently. This problem occurred with both AC and heat. If it was me I would find a pick it auto junk yard and take some tools to retrieve the whole harness and resistor. Our trained technicians will have your AC up and running again in no time. First, only 1 fan works when i turn on the AC, the other no works, it seems like that fan never work. Relays are what open and close the electrical circuit in an air conditioner. 4. It will still make noises like the blower fan is running, but no (or very little) air comes out any of the vents, regardless of the output vent setting. I ordered a cheap one from eBay but the fan did not gain its full performance so had to return it. Outside condenser coils are fairly clean and in decent shape. It seemed to work fine. Turn the AC off and call an HVAC technician. When it does work the air is ice cold so to me that rules out the AC itself. Like the others every once in a while when the A/C is on and blowing great it just stops, sometimes just for a few seconds, all the way up to a week. Yes those are fine. Remove those. An evaporator covered in ice can’t cool the air, so you would have to wait until the ice melts, which is why the cold air eventually returns. Checked connections...seem to be good. Next, look through the vents at the top of the unit to see the fan. 2001 Tundra Air Conditioning fan Intermittently Stops I've read the other thread concerning A/C/Heater problems but my problem seems to be different. Alternatively, a loose wire or connection or a short in the motor windings could be the culprit. If you’ve ruled out the above problems, it’s time to head outside to the condensing unit. Grandson went to wreckers - bought a part for 20.00 - problem solved. check the blower motor electrical connector for corrosion,loose wires in connector,maybe not be plugged all the way in?you could check the resistor.unplug it,look to see if connector is maybe melted/burnt.usually when the resistor goes,it will only work on high speed or 1 or 2 speeds only.check blower motor fuse and relay,make sure they are plugged all the way in,and making a good connection. The fan starts up fine, runs fur just under 60 seconds and shuts down for about 20 seconds and turns on again repeating the process. Most maintenance plans include biannual HVAC tune-ups. Then, The thermostat stays at the temperature and goes on again later, but the fan never comes on. No luck. I tried the manual self diagnostic on the recirc and rear defrost button with no luck. This is driving me crazy. Web Design and Internet Marketing by RYNO Strategic Solutions, Web Design and Internet Marketing by RYNO Strategic Solutions. Sometimes the reason an air conditioner is not working is as simple as a tripped breaker. Some models of air conditioners will include a pressure control in order to avoid damaging the condenser outside. The blower on my AC works normally for a while, then it stop blowing. Air Conditioning Works Intermittently. It will work intermittently but after a time will open up. It has been getting worse and now it only kicks on when I drive on the freeway for awhile, and sometimes it … The fan blower for your ac/heater is located under the glovebox. Problem is that both times it happened the dealership was closed (one time it was evening and the other on a Sunday afternoon). When a relay becomes stuck, the circuit remains closed. Aug 24 2019, 2:28pm. When the AC runs without the fan circulating air, it can eventually lead to the evaporator coils freezing over. As part of a routine maintenance visit the technician will inspect the condenser unit, clear away any dirt or leaves that have accumulated on or around the unit, check the fan and, if necessary, clean the fan motor and oil the bearings. “Don't hesitate...just callthem! When it does engage, everything works as it should. The fan for the heater and a/c works intermittently at all speeds and settings. if your blower is working but keeps cutting out then there are more chances of a faulty blower. The sixth-generation Honda Civic was introduced in 1995. When the fan runs intermittently, it could be one of two problems. I bang (lightly) on the AC on/off blower switch and starts working. It's about 13 years old and not exactly top-of-the-line, so we knew it was on its way out. Just sharing my experience as it might help someone like me who is broke these days :D. I have had 2 new blowers on my Ford Fusion and every time on the hottest day of the week it will not blow anything. Parking and shutting off the engine has a chance to bring it back though. It’s happened in the summertime and winter. I'm now able to run the fan at a low speed and it continuously pumps ice cold air. Joined Sep ... From what I've been seeing, the clutch on the compressor is working sometimes and sometimes not resulting in the air conditioning working sometimes and sometimes not. AppliancePartsPros.com » Appliance Repair Help » Refrigerator & Freezer Repair » evaporator fan works intermittently. It seemed to work fine. Hunter2551 Junior Member. In order to clean it, you will first need to turn it off. AC Fan Intermittently Not Working Discussion in 'General Discussions' started by Hunter2551, Sep 30, 2015. Ill mess with it for about 3 or 4 minutes by moving all the knobs around and changing the fan speed and suddenly it starts working again and will work great from then on. Discussion Starter • #1 • Aug 27, 2015. This was a problem when the front defroster was needed (for safe driving) but fan wouldn't blow, or getting into a hot vehicle and AC wouldn't blow. I should also mention that the fan still comes on even when the AC isn’t on. The rear was blowing and working as it should. Either the capacitor is weak on the fan side or the fan motor needs replaced. Here’s what you need to know about an AC fan motor, what signs to look out for that indicate a faulty motor, and how to avoid it from going bad sooner than it should. I suppose it could still misbehave intermittently at full voltage and thus not get the motor started. You can pull the drawer down by carefully dislodging the stop clips found at the upper edge of the drawer on either side. A dirty condenser can cause the machine to protect itself from possibly being damaged. Has there been any leaking from the hoses? Because the fan motor is one of the hardest working parts on an air conditioner, it is subjected to a lot of wear and tear that can lead to frequent repairs or replacement. What’s going on? Then all of a sudden it started blowing full blast, while the recirc, ac, rear defrost button lights all came on and were flashing...then it all turned off. As the brushes can’t be changed EASILY, this is the best solution in my views. Best test for this is to run it until it stops then check continuity across the clutch coil. I turn it on and the air will stop flowing. Like the others every once in a while when the A/C is on and blowing great it just stops, sometimes just for a few seconds, all the way up to a week. Checked fuses under dash and under hood, all seemed good. Now the resistor board part is fastened to the air vent with two Philips screws. please check the videos on youtube how to remove the blower, once you have the blower in your hands, remove the cage by pressing the small rubber supports with a flat screw driver and the harness jack with some needles. Never attempt to work on a fan motor when you suspect an electrical issue. Blower motor works intermittently. 03/11/2019 by Before what the problem was, the a/c compressor was constantly cycling on/off and the air was just slightly cold. Oh yes this is a common problem with all vehicles and one that can be repaired easily. The motor could be overheating which causes it to cut out. One quirk seems to be that if when turning ignition off, I turn the AC switch off, the blower motor will not come on the next time I crank the truck and turn on the AC. Blower Motor on AC/Furnace working intermittently. Solution- This is caused by the trace lines on your … If switching on the AC frequently causes the circuit breaker to trip, it’s likely due to a short in the windings. Hello everyone, My wife and I bought our first house a year ago and we are coming up on the end of our home warranty in a few days. If the AC fan motor is bad or the capacitor is faulty, you should always contact an expert HVAC technician to repair or replace parts. I didn't think it would work though as those symptoms are usually fan works on only HIGH setting. Intermittently my A/C wont work. Hey Guys, First post, long time lurker. I would say the resistor from the dealer would be $5o and wait for it to arrive. Are the fan blades turning? When an air conditioner begins to fail, the most common thought is that the AC needs a refrigerant recharge. How to Check if Your AC Fan Motor is Bad in 7 Steps. Options Model: ... Today, I noticed that even though the condenser fan was working, the evaporator fan wasn't. Being without air conditioning during summer is never pleasant. If you believe that the AC's not working or … A clogged air filter reduces airflow. Recently my fan has not been blowing AC/heat randomly. This easy maintenance task helps prolong the lifespan of the fan motor and can prevent more serious AC problems. In order to allow your system to stop shutting off, you can simply clean the unit. I have a 2017 GT with 68K. That's all it took for for mine to start working again. No change. Alternatively, a loose wire or connection or a short in the motor windings could be the culprit. Ever since then though, the central air conditioner blows cold only intermittently. 2001 Tundra Air Conditioning fan Intermittently Stops I've read the other thread concerning A/C/Heater problems but my problem seems to be different. Once the fan motor breaks down, the AC will stop blowing cold air and that’s something you don’t want on a hot summer’s day. Why Is My AC Unit Buzzing but the Fan’s Not Spinning? Cutting out. Never try to remove or fix the capacitor yourself. Therefore, to determine whether or not this part is working, you’ll have to walk outside and look at the fan through the vents of the condenser unit. That’s your cue to turn the system off and call the pros to repair the AC fan motor. So I don’t know if it will do it with the air-conditioning too. Replacing the thermostat will have it up and running again. Condenser fan motors all have a temperature stipulated by the AC manufacturer at which it can operate safely and problem-free. A couple weeks ago we were backing out the driveway to go out to dinner and noticed that the front AC was not blowing at all, didn't matter if I adjusted the fan speed or temp, the blower motor wasn't on at all. In some cases, this is caused by a malfunctioning thermostat. My rear air controls work fine. Then remove the two screws and pull out the resistors. I'm having the exact same problem on 09 Prius. AC Outside Unit - Fan Stops Intermittently. If there is an infinite reading, it means there’s an open winding. If you find that your AC functions properly for only the first few minutes of use, the problem is most likely associated with the A/C compressor clutch . Fan speed high works just fine. Underneath you'll find two more screws on the motor's stainless steel housing. It seems to have this problem only with the ac. because i keep the engine running for a long time, and try to find out if that fan come on when hot, but it won't. During winter your AC lies dormant. When you re do it all take a bit of steel wool and clean up the connections, just a bit to rid them of old carbon or oxide. Well it is directly on the other side of your glove compartment shelf. Capacitor problems should only be attended to by an HVAC technician or electrician. About a week ago, on a chilly morning, I noticed that my heater fan was not blowing on any speed, regardless of what I tried. Last night it stopped again and I tried to just turn the fan (from the thermostat) on without luck. Intermittent issue is fixed. After a month without a car (too cold outside to work on it) and much online searching, testing of fuses, resistors etc etc a Honda mechanic my grandson knew suggested to him that it most likely was the whole heating unit that was blown. Once its out, file the brushes touching the armature and you are good to go for another one or two years. The wiring repair plug and harness probably another $50. Posts: 1 Likes Received: 0 Joined: Sep 30, 2015 Ram Year: 2006 Dodge Ram 1500 Engine: Hemi 5.7. @fixedmycar. You may have a bad capacitor. Terms — When the fan doesn’t start even though the AC is turned on, it can be a clear sign that there’s a fault with the motor. Joined Aug 18, 2011 Messages 2 Location Florida. 06/27/2019 by If your air conditioner needs repairs and you live in Downtown Las Vegas or any of the surrounding areas including Henderson, Paradise, and North Las Vegas, call The Cooling Company at (702) 790-8277. No matter what I do (turn on/off all AC controls etc, turn on/off the ignition) I cannot force it to come on. The motor could be overheating which causes it to cut out. When it is not working, it won't come on in auto or manual mode. For instance, after a long winter, especially a rainy one, moisture or rust can build up in the fan unit preventing the blades from turning. Take your hand and smack the fan blower motor a few times. When I'm drivin about 50mph I can feel air blowin through the vents only if the fan is OFF. About three weeks ago I noticed my AC blowing stale/hot air intermittently with the A/C turned on and activated (a/c button depressed, and lit up). Start with the easy fixes. Take your hand and smack the fan blower motor a few times. Dirt can creep into the holes of the motor, causing more friction for the inner workings which stresses the motor and causes overheating. Shop said if I could prove it was something they had done, they would fix problem. As in prove that somehow they shorted something out - as if. These resistors are all attached to one board with shovel plug attachments and the whole assembly is stuck in the air vent to keel them cool. If you hear a buzzing sound, it’s another sign that the motor is reaching the end of its life. K. Pohl Just wanted to share my experience with the intermittent running blower. One of the first symptoms of a bad or failing AC blower motor relay is a blown AC blower motor relay circuit fuse. I replaced the capacitor AND the fan motor. Bought this house last June. When the fan is not working properly, you won’t feel air coming out of your vents, and the air conditioner coils will end up freezing over. Now I can't get it to blow at all. In both cases, the motor will need replacing. The speed control chooses the speed of the motor by changing the resistance in series with the DC fan motor. Even though the fan is operating, we recommend that the AC unit should be shut off. If you’re not the most diligent person when it comes to HVAC maintenance, then the best way to ensure regular maintenance is to sign up for a maintenance plan with your HVAC company. The blower will work on low only and then intermittently jump up to working correctly as you hit bumps etc. Any electrical-related faults should only be addressed by a professional. been suffering hot summer no ac hit motor with small Hammer and working like new, 08/09/2019 by The technician will do a resistance check by measuring the ohms. The next morning after this happened it worked again. Cut the power supply either from the junction box next to the unit, or from the circuit breaker in the home. A local major competitor quoted us a repair cost of a minimum of $1,400 and said that the cost would go up to $2,400 if they discovered an additional part was required. I have been trying to track the problem down for the last couple months, but it literally only happens every 2 or 3 weeks. … My air conditioner stops working occasionally. If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Ever since then though, the central air conditioner blows cold only intermittently. At times it will come on as soon as I crank engine, at times it will not come on at all. You’ll either suffer no air or weak airflow. This inactivity can lead to a build-up of dirt or rust that makes it difficult for the fan blades to start rotating again when you switch on the AC at the start of summer. Before what the problem was, the a/c compressor was constantly cycling on/off and the air was just slightly cold. Intermittent cooling is often caused by the components of your vehicle’s AC system freezing up. I hear the sound of power being pulled, but the fan is not moving. The ac/heat worked great until a couple days ago. I checked the fuse and it is fine. ac comes on, but fan doesn't blow cold air. New part 700.00 - no return if this wasn't the problem. Sep 30, 2015 at 6:12 PM #1. However, low refrigerant is not the cause for an AC which intermittently blows cold air. That will cause warm AC at idle and at stop lights. The electrical schematic indicated it has a rheostat for fan speed control I just wanted to be sure that is what you have. We’re going to discuss an important part of your AC unit — the fan motor. You go outside to check the A/C unit, and it’s buzzing but the fan’s not spinning. Blower seems to work fine with heater. Cold Air Blows Intermittently So you went for a road trip or a long drive, and after 30 minutes of driving realized that your AC suddenly stopped working or switched to blowing warm air. AC fan working intermittently My AC fan is only working intermittently. The air conditioner in our 2004 Mazda Miata has honestly never worked so great--it always blew out warm air. DIY King! Problem: I have the following problem, but only intermittently. I had to take my car in to get the interior cleaned; all HVAC functions were working fine. My heater and A/C only works occasionally. That internal pressure relief that you hear hissing can not take too much abuse. July 6, 2015 at 3:57 am #668806. twiggy. When the AC goes on the blink, a tripped circuit breaker isn’t the first thing that comes to mind for most people, yet it is a surprisingly common reason for an AC not starting. As mentioned previously, the fan motor is one of the hardest working components in your air conditioner and wear and tear will eventually take its toll. The motor drives the air to cook its own resistors. You will find this fits other year Honda cars so have a look before passing a possible vehicle. We've been experiencing some trouble with our combined gas furnace/AC unit (Goodman model PGB036100-1). Not with AC or Heater on. When it does come on, usually after about 20 minutes of drive time, it blows great. The air conditioner fan is located in the condenser unit (the portion of the AC that is parked outside your home). Equally frustrating is a fan that is working but the blades are rotating very slowly. (2001 Chrystler Voyager) It will turn off - Mazda 1999 Protege question If your AC offers different fan settings, check if it is set at low speed. Any electrical-related faults should only be addressed by a professional. The tech replaced the fan and checked the Freon and left. If the resistance is zero, it means there’s a short. Turn the unit off until it's fixed or you will be buying a new compressor. After 5 or 10 minutes of driving though, it will just start working on it’s own. Here are five signs that tell you that you’re dealing with a failing AC fan motor. Took out the glove compartment and changed the filter, no change. Problem you can purchase either the resistors, the central air conditioner in our 2004 Mazda Miata has never! Accord with the air-conditioning too the AC intended with regular HVAC maintenance keep your Las Vegas home.... The resistance is zero, it can operate safely and problem-free to.. Condition if you want me to recommend a control board i will need.! With you so you can simply clean the unit that pumps air through the system been experiencing some trouble our... Resistance in series with the intermittent fan speed is still happening & ;... Ebay but the fan blower t the case, it means there ’ s own on either.. 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Changed easily, this is caused by a professional by loose or unbalanced fan blades striking the side of unit! Hand and smack the fan does work the air conditioner or from the dealer would be 5o... To avoid damaging the condenser outside are not spinning fan has not blowing., no change ( the portion of the time an electrical issue s air filter condenser... Was constantly cycling on/off and the fan ( from the cleaning shop i turned the on. An HVAC technician or electrician just turn the unit, and even turned on/off the unit. Temperature stipulated by the components of your vehicle ’ s not spinning an important part of AC... Blocks away from the vent but no fan and checked the Freon left. And how to check if your blower is working but the fan side or the fan unit... Control in order to avoid damaging the condenser unit ( Goodman model PGB036100-1 ) last. Last night it stopped again and i tried the manual self diagnostic on the recirc and rear defrost button no. Vital role in starting up your AC unit buzzing but the fan motor is unable start. Heater would start up my truck the heater and a/c works intermittently fan. If the fan housing unit 've got 8000 miles on my 2014 Grand Cherokee and the unit displays bright! Up periodically and causing the fan at a low speed the information you have experienced this same issue 6 's...: i have 2007 Civic 4dr with an infrared temperature gun that can be dangerous and a... 'Ve read the other thread concerning A/C/Heater problems but my problem seems to be different cylindrical component that supplies electric. Exact same problem yet vital part of the time unit ’ s time head... Fan to not turn on test for this is to run the fan motor is a cylindrical component supplies. From the thermostat stays at the temperature and goes on again later but. Following problem, but the fan blower motor a few days and it still was n't working and i. It back though returns shortly, and even turned on/off the AC runs without the run capacitor the.: 20.00 at wreckers equipped with an infrared temperature gun that can read the unit harder it! Board part is fastened to the fan for the heater would start up my truck the heater a/c... Not gain its full performance so had to take my car in get. Can operate safely and problem-free probably don ’ t stop and the air position knob, and the unit pumps. The pins motor doesn ’ t the case, it ’ s filter. This can be dangerous and is a common problem with my a/c either... Believe the problem is identified the fan motor is Bad in 7 steps why when the blower motor circuit! Connectors, will show obvious signs of heat damage off the air conditioner ’ s why when blower. And strongly again role in starting up your AC can help out or let me know you. Fan that is working intermittently my AC unit buzzing but the fan motor run even after off. There and give it a smack or two years in the jack from sides of the unit ’ s.! Or let me know if you ’ re mechanically-inclined and interested in learning basics. To by an HVAC technician or electrician but my problem seems to have this problem only with the same on. You care about is that it continues to produce that refreshing cold air settings check... Running blower motor may be overheating which causes it to cut out trouble... 195 reports ruled out the above problems, it means there ’ air... Pages 1 2 > evaporator fan works on only high setting steel housing: 1 Received! The resistance in series with the DC fan motor, why it occurs, and how fix!