Hvac Blower Motor Starts Then Stops

Sometimes completely stops until you restart the car, then same thing. Finding the location of the fan assembly is a good place to start. Sometimes cycling the AC control to Off and then back to MAX will make it start working. Hi guys, I've got some problem with the A/C of my Citroen C5 2004 hatchback. If the blower does run when you move the fan switch to 'manual' or 'on', then the problem most likely is a faulty temperature switch. I have experienced this with a Q7 fan blower. I put the switch to off. As the brushes can’t be changed EASILY, this is the best solution in my views. If this is an A/C in a car then one possibility is evaporator icing, which I have experienced in two different cars. There are a lot of components to look at if the furnace isn't working. Do you think the run capacitor is the culprit? This unit is @ 10 year. Get your alternator tested, when they start going bad, things like that can happen. My AC works fine. NO burning or other smells coming from the AC unit. Page 1 of 2 - Furnace - Blower Starts, But Won't Ignite - posted in Outback HVAC & Appliances: We needed our furnace (Model - Suburban SF 30F) a couple weeks ago and wouldn't you know it - it wouldn't ignite. First, try grounding the wire. The blower motor resistor is located right at the blower motor under the passenger side dash board. Comments: I'm reading your article HVAC Blower Fan and Regulator Replacement, and was wondering if this is related to my problem. The relay is normally open and should always have power from the circuit breaker. Humming noises can indicate the starting capacitor is starting to fail or a bad motor. Is it the blower motor, heater core, a relay or what. At times it runs fine but starts the same issue. I have not had time to check it out yet but I was wondering if this an issue with blower motor itself or the resistor or switch or whatever it is called. The blower motor resistor, also commonly referred to as an A/C blower motor resistor or a heater blower motor resistor, is an important component to your vehicle’s heating, ventilation, air conditioning (HVAC) system. Run Start Capacitors HVAC Motors - There are two basic types of motor capacitors most commonly used in HVAC applications today. FYI: *You would be surprised how many people go without heat or cooling for hours/days and all the problem they have is the switch on the side of the furnace is not turned on or the blower door is loose after they change a filter!. This cuts off the burner but the motor tries to run to cool the furnace down. It would run non-stop but you would have some AC until the heat wave tames and you can get things fixed up. If your furnace won't turn on, go to your furnace (if it is accessible to you), and peak in the little plastic window on the side of it (most modern furnaces will have a window). i would be irate with the dealership if they told me after three times that this is normal. 4 The motor may need to be reset because of an overload. Not sure if this is the exact problem that I had on mine, but I found a bad relay for the blower motor in the underhood fuse box. So when the main blower run, it just blow the cold air (without heat) so the processes keep doing over and over. theres two motors in your furnace. the motor with drill and then turned it on and it. only sold online, part houses don't list this item in a search. • Blower runs for 15-30 seconds then burner will fire up. I hear a click after a bit then nothing at all after that. Power then flows to the blower motor. The blower motor resistor is located right at the blower motor under the passenger side dash board. 1 in static pressure increase you lose approx. About a month ago, the blower stopped blowing. Inducer Motor How To Fix And Troubleshoot A Faulty One. When the tech was there, if he did not replace any parts then he did not do his job. My problems began about 3 months ago with the fan not coming on for positions 1 through 4 but came on for position 5. How to Check if Your AC Fan Motor is Bad in 7 Steps. Symptom: Blower motor only works when you're messing with the key in the ignition, turning on to start, or halfway between, or some variation in where your key happens to be at a specific point in time. Do you have the model number? There is a problem with either the blower motor sensor or the ignitor. 2 out of 5 stars 69. Looks like the blower fan was just starting and stopping over and over. I'm having a problem with my Broan Electric furnace lately. Im having Problems with my blower motor, Sometimes it will work and sometimes it wont. Since your Ford Taurus blower motor is responsible for blowing hot or cold air into your vehicle's cabin, then you're surely notice a problem once it stops working. 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. all start by loosing. If it isn't on, turn it on, and wait for the furnace to engage. If the furnace runs for a minute and then shuts off, then its likely. Furnace Blower Motor. Problem: Draft inducer will not start, ignitor will not glow or gas valve will not open. Testing the Voltage Output of the Blower Switch on the Heater Control Panel. If the sound continues, hire a heating and air conditioning professional to check it out. It may be bushings going bad in blower and binding or a poor connection. Furnace Blower starts then stops [ 3 Answers ] So my furnace starts and I can still here that its ignited when the blower starts. It's running for 2 minutes, turns off for another 2, then turns on again. A fan motor circulates the air from the interior of the motorhome or camper trailer through the RV AC unit where it is cooled and then returned into the RV interior. Reset thermostat from ON to AUTO. If the blower does run when you move the fan switch to 'manual' or 'on', then the problem most likely is a faulty temperature switch. Filter dirty. So I replaced my blower motor with a new one from Autozone ($118. Problem: Draft inducer will not start, ignitor will not glow or gas valve will not open. Automotive Blower Motor. One of the first symptoms of a bad or failing AC blower motor relay is a blown AC blower motor relay. Did the fan stop working on the lower speeds at first then stop completely or did it stop all of a sudden? Have you checked the all the fuses?. The sail switch then sends power to the high limit temperature control. Could the new module and blower be faulty. Drove car home last night. Furnace turns on and off repeatedly : 1. From what I've gathered, all these issues (hot wiring, melted plugs, burnt out switches/resistors) with the HVAC appear to be symptoms of one core issue: the blower motor is going out, and should also be replaced. com FREE DELIVERY possible on eligible purchases. Voltages and ground are. Blower motor makes noise when I start or stop the engine but it still blows hot and cold air (2013 Chevrolet Impala) This only lasts for a minute or so and then stops. If not, replace the dirty filter with a clean filter. temperature-starts and stops the blower motor when the temperature is correct if the voltage is being read then that is the amount the. The ducts only eventually seem to stop blowing air when I turn on the AC (after a few hours). The time had come however, to replace the fuse box. If your blower isn't working or works intermittently, don't automatically assume you have a bad blower motor. Please, any help will save money! Thanks ya'll. The motor has to spool up and close the circuit on a small switch called a sail switch behind the blower wheel cover. Air conditioner starts then stops after only a few seconds Then it does it again What could be wrong? If the air conditioner stops working, it could be low on freon or the motor could have seized. Low on Ac Freon. If your furnace runs for a few minutes and then stops, it can be really annoying and get really cold. Sometimes is sounds like the compressor tries to come on and cannot and then clicks off. Common Air Conditioner Capacitor Failure Symptoms Dirty Flame Sensor Problem Draft Inducer Motor Help! My heat is not working. Go to page number indicated in Index for CLEANUP AND STARTUP INSTRUCTIONS. If you have cool air but a steady airflow, your blower motor is working but your heat exchanger or burner is not. The motor starts up strong and then will run for a minute, then you can hear it start to struggle and finally it will just stop. Voltages and ground are. Start Capacitors for HVAC Compressors | Back EMF. Some 1995 and 1996 thru the first half of 1997 vehicles came with a electric servo-motor flap control system with a recirculation button for the fresh air flap and a button for the A/C. If you have cool air but a steady airflow, your blower motor is working but your heat exchanger or burner is not. The heating elements are working because I can feel the heat from the furnace but the motor does not. This is when the tstat calls for heat. Common Air Conditioner Capacitor Failure Symptoms Dirty Flame Sensor Problem Draft Inducer Motor Help! My heat is not working. The blower is on the far passenger side. A faulty blower motor can leave you freezing or sweating, quite literally. Not sure how to check either. 1999 F150 5. 4 The motor may need to be reset because of an overload. 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. Comments: I'm reading your article HVAC Blower Fan and Regulator Replacement, and was wondering if this is related to my problem. It provides the precise heat or cooling output your home needs at any given time day or night. Symptom of a bad resistor for me has been that the AC/heater blower will only work on high. Hi, I got a problem with main blower in gas furnace. However it is recommended that the whole blower assembly, with the motor, be removed from the furnace/air handler. This is usually the worst of the six different sounds. I'd wager a. single phase motor won't start the motor coming to a complete stop, your motor may just be overheating. 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 to answer your question. Now that you understand what it is, now we can discuss how to properly troubleshoot the X-13 motor. Is it the blower motor, heater core, a relay or what. Run the unit with dirty air conditioning filters and you may end up paying high maintenance and repair charges, you may end up having to replace the unit completely. I was about 10 seconds from replacing my blower motor resistor before I had one last weak attempt to avoid the cost. Good place to start is with the. Blower Motor Components If the blower motor in your vehicle isn't working, you may find yourself very uncomfortable behind the wheel and ready to replace some components. If I turn the car off with the fan blowing/working, it will work when I start it up again, about 1/2 the time. I set my thermostat to 69 but my heat only gets up to 67 then it stops. Oil-Furnace Repair and Troubleshooting When your oil furnaces quits, try some home diagnoses before calling in a professional, including these five tips and symptoms. Air Conditioning and Cooling Systems - Blower runs for 30 seconds then quits - I bought this house last year. Variable Speed Blower Motor s. When my gas furnace starts running, the blower starts for about 5 seconds, then stops. My furnace blower doesn't always start. Note: If your thermostat fan is set to ON, your furnace isn’t actually running non-stop—just the blower fan is. It may be bushings going bad in blower and binding or a poor connection. When the furnace get a signal for heat, the blower motor comes on and then the ignitor. That thermo switch opens if the furnace gets too hot and shuts down the gas. Clear out any debris from your blower motor. The pictures arn't the best because I was using my phone and some of the pictures were taken at night with a flashlight. What is the next step? Bad blower motor?. WHAT IS THE BLOWER MOTOR? The blower motor is responsible for the process of cycling air from your furnace, to the vents throughout your home. A typical RV air conditioner will have both a compressor motor starting capacitor and blower motor run capacitor, since they are generally of the Capacitor Start Induction Run (CSIR) type. Another Blower motor problem, works fine, then hit a bump, doesn't If it works, then I hit a bump, it stops. The furnace ignites but when the thermostat senses it reaches temperature and the gas turns off the furnace blower does not turn off. The relay is normally open and should always have power from the circuit breaker. Right now, for tonight, I had to wire the motor to start manually. I pulled the squirrel cage out and propped it up and turned on the AC the motor produces a nice hum and turns very slowly for a moment and then stops turning but keeps humming. About a month ago, the blower stopped blowing. The temperature in my house is 79F. Could the new module and blower be faulty. A/C system can be turned off and on multiple times, but the front blower fails to respond. I took the cover off I see that the blower motor itself is a ways away from where I hit the dash. single phase motor won't start the motor coming to a complete stop, your motor may just be overheating. When my gas furnace starts running, the blower starts for about 5 seconds, then stops. Sometimes the motor will quit running for up to a minute. The temperature in my house is 79F. I set my thermostat to 69 but my heat only gets up to 67 then it stops. The relay is normally open and should always have power from the circuit breaker. Like a battery, the capacitor stores the extra energy that is needed to “jump start” the furnace blower. the silver canister under the hood near the fires wall will be all iced up. If the blower stops with either of these steps, the problem is in the HVAC control module. 5y/o Amana Distinctions unit froze over. Upon start up, the motor will turn one direction, stop, then turn the other direction. the switch position doesnt seem to affect it either. Is it the blower motor, heater core, a relay or what. I've basically run into a similar issue with my '00 TJ. Power then flows to the blower motor. • Blower runs for 15-30 seconds then burner will fire up. An Inducer motor is a small single phase motor located inside the gas furnace of your heating system. Gas furnace starts then stops? This video provides information on how to troubleshoot a furnace and the most likely defective parts associated with this problem. This is always helpful to pinpoint the problem to the inducer motor in the first place. If the transformer is dying or not securely mounted, it will buzz. Sometimes the motor is on for only a split second. Another Blower motor problem, works fine, then hit a bump, doesn't If it works, then I hit a bump, it stops. Blower starts and stops, goodman air handler aspf313716aa. blower motor BLWM will remain ON until the main burners signals disappear at the same time, the blower motor BLWM ignite then shut OFF and remain OFF for the blower-ON delay will remain on at low-heat airflow for the selected blower-OFF (60 seconds in low-heat, and 35 seconds in high-heat), allowing delay period. A lockout code will be displayed on the IFC. The blower motor is new and it does work. When the blower stops the furnace is still on the it repeats this process till I turn the thermostat off and it works fine what its wrong?. To remove it, disconnect the two pin cable then look for a longer tab with an arrow on it that extends from the motor housing. My next option is a larger capacitor. Anything from no air circulation to annoying or noisy operation. Simply open the glove compartment box of your Deville and you'll see the fuse. Other possible causes include the failure of the blower motor or capacitor. when the heater starts, I can see the gas blower starts, then the gas starts burning - the burners roaring away for about 30 second or a minutes then the burner stops before the main house blower starts. Your furnace uses a lot of energy, so to supply the extra energy needed to power the blower, gas furnaces have a capacitor. This is usually the worst of the six different sounds. It may be bushings going bad in blower and binding or a poor connection. Start with basic maintenance issues like cleaning then check electrical components. I was about 10 seconds from replacing my blower motor resistor before I had one last weak attempt to avoid the cost. Air Conditioning and Cooling Systems - Blower runs for 30 seconds then quits - I bought this house last year. 2003 Dodge Caravan Intermittent HVAC Problem - Stops Blowin It seems to work at first and then stops as you after you have driven a ways. Symptoms of a Bad or Failing Blower Motor Relay current to the blower motor, if it fails internally, then power will be cut off from the blower motor circuit, causing the motor to no longer. The fan speed control became erratic and then stopped completely in my wife's 03 Envoy XL. Your furnace uses a lot of energy, so to supply the extra energy needed to power the blower, gas furnaces have a capacitor. It reviews best practices for diagnosing common electrical problems. Turning the AC off/on with the power button does nothing. It might work fine for a while then all of a sudden stop a couple days then start back. If the blower doesn't start, then the problem could be a fuse inside the furnace, a loose connection or a bad blower motor. Rear A/C controls continue to work fine and cold air is blowing out well. Should be easy. Motorcraft control resistor assemblies are manufactured of premium-quality materials to strict Ford Engineering standards. If there is voltage (120 volts) and the motor is not running, then it will be a defective motor. written by Randy Mullins. If you need the blower motor for your Carrier gas furnace, heat pump or air conditioner Shortys HVAC Supplies can provide you the factory authorized blower motor. Applying oil or tightening your blower belt should stop the noise. I have a 2001 Volvo S40 Turbo and have been having problems with the heater/AC Fan/Blower for about a year or so. When I switch the tstat to fan run, i hear a relay click and the blower motor trys to start, rumbles then spins down, rumbles then spins down, sometimes it is able to fully turn on and blows like normal for a few seconds and then cuts off and goes back to rubmling. Since then, every once in a while I notice that the fan doesn't come on when I start the truck, or if it does it's very weak, so I crank it to max, the fan blows noticeably, then I turn it down to a more reasonable setting. The draft inducer motor starts running and the ignitor begins heating up, slowly becoming a bright orange color. Now I see only two relays for the auxiliary heat elements and a blower motor with no capacitor. Therefore, it's essential to keep it in good condition if you want your air conditioner to work. This is short-cycling, and you don’t want it affecting your cooling system. Commonly replaced furnace parts. if its not loose and flopin around your bearings are shot, they are. If I turn the car off with the fan blowing/working, it will work when I start it up again, about 1/2 the time. Can't check the blower relay under hood as I don't have a spare but have not read anywhere that it was the culprit. Then after driving for several minutes, the fan starts and everything works fine. So I replaced my blower motor with a new one from Autozone ($118. You should take the blower motor out and inspect it and at least change the resistor pack for it. As the brushes can't be changed EASILY, this is the best solution in my views. Co woker called and said one condenser fan was running backwards on a 20 ton trane ac causeing unit to trip on high head. Furnace Blower starts then stops [ 3 Answers ] So my furnace starts and I can still here that its ignited when the blower starts. Electricity for HVAC. November 8,. The blower motor seems to cut in and out intermittently. If I turn the car off with the fan blowing/working, it will work when I start it up again, about 1/2 the time. i felt that was a lie and they either didn't. AC/heater fan stops working then starts again. July 2017 (1) March 2017 (1) February 2017 (1) September 2016 (1) April 2016 (1) October 2015 (1) August 2015 (1) July. The relay is normally open and should always have power from the circuit breaker. One cause for this sound is that the blower wheel came loose from the motor shaft, moved and is hitting the blower housing. Symptoms of a Bad or Failing Blower Motor Relay current to the blower motor, if it fails internally, then power will be cut off from the blower motor circuit, causing the motor to no longer. It sounds like the blower is blowing full speed but the volume is super low even though it is still blowing cold. I pulled the squirrel cage out and propped it up and turned on the AC the motor produces a nice hum and turns very slowly for a moment and then stops turning but keeps humming. If your air conditioning troubleshooting call is for a unit that has good supply voltage but is otherwise dead: If your supply power checks out ok, make sure the thermostat is turned on, that there is control power to it, and verify that it actually works. Gas furnace starts then stops? This video provides information on how to troubleshoot a furnace and the most likely defective parts associated with this problem. It continues to run even after the normal cycle and even when I turn the thermostat to the off position. Hi, if anyone can give me some troubleshooting assistance it would be greatly appreciated. I ordered a new harness and Resistor to try, havent got them in yet. motor or capacitor? I'm not sure if it's the capacitor or the motor. In fact, it's responsible for a whopping 90% of all furnace problems! Simply change the filter and then if the unit has a reset button, marked "RESET" near the motor housing, wait 30 minutes to let the motor cool, then turn the power off to the furnace and. Then try removing it. A/C system can be turned off and on multiple times, but the front blower fails to respond. How to wire capacitor start ac motor [closed] and my neutral together and then orange, black, and hot together. So I walked into the basement and heard a nice humming sound and noticed a nice burning smell (no smoke). Designed for momentary use, the start capacitor disconnects from the motor after it starts to prevent damage. I had to change these two items on my g/f car so I figured might as well do a short how to with a couple pictures. it also did this about a month ago but has worked fine up until now. What does it mean if your furnace is making a weird noise? The job of an HVAC technician would be so much easier if furnaces could talk, not because it would give us someone to chat with while we work on repairs, but because a talking furnace could simply tell homeowners when something was wrong. At times it runs fine but starts the same issue. If your thermostat controls the furnace and the air conditioner make sure the switch is set to FURNACE. Sometimes you can verify a bad blower motor with a rap from a screw driver handle on the bottom of the blower motor when it's not operating but the ignition key and blower switch are 'ON'. My AC works fine. 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. Leaves or other debris past the blower stops at the evaporator core and can restrict airflow. Blower motor stops working. If your furnace won’t turn on, go to your furnace (if it is accessible to you), and peak in the little plastic window on the side of it (most modern furnaces will have a window). It continues to run even after the normal cycle and even when I turn the thermostat to the off position. 4 The motor may need to be reset because of an overload. The transformer is a small box inside the furnace that has wire connections on both sides. By the MOTHER EARTH NEWS editors. Start capacitors increase motor starting torque and allow a motor to be cycled on and off rapidly. It's running for 2 minutes, turns off for another 2, then turns on again. When the window AC is started the blower starts immediately and after a few seconds the compressor also starts. This would be normal. The 2006 Chevrolet Silverado has 18 problems reported for blower fan stops working sometimes. Step 5: Check Your Blower Motor if Your Furnace Still Won’t Turn On. When the thermostat not longer calls for heat & the limit switch dial goes down to 100 degrees the blower motor shuts off. long enough to hear it turn over, about 1 sec), the rear blower shuts down immediately. A blown out fuse impedes the operation of the blower motor and the fan. Conclusion. I have removed the motor from the machine in order to fit a replacement but have some questions about the existing motor before I splash out on a new one 1. When AC comes on the Air Handler Blower runs for about 20 seconds then stops for 3 seconds then runs for about 20 seconds. It reviews best practices for diagnosing common electrical problems. Get your alternator tested, when they start going bad, things like that can happen. Another cause of low airflow could be a blocked evaporator core. Then try removing it. July 2017 (1) March 2017 (1) February 2017 (1) September 2016 (1) April 2016 (1) October 2015 (1) August 2015 (1) July. Sometimes you can verify a bad blower motor with a rap from a screw driver handle on the bottom of the blower motor when it's not operating but the ignition key and blower switch are 'ON'. AC Motor 3-Phase Soft Starters from AutomationDirect, the best value in industrial automation - low prices, fast shipping, and free award-winning service. Every part comes with a limited lifetime warranty. If the blower motor is working at normal speed, replacing it with another that does the same, would make no difference. You cannot see it without removing the cover as it is fastened to the back. Everything starts up accordingly, runs and then the inducer stops for a few seconds, flame stops blower continues to work then the inducer starts up, igniter starts, burners kick in and all works. Now to answer your question. Does your filter look like the one on the right?. I inspected the connector under the glove box and doesn't appear to be melted or any other issue. Furnace Starts Then Stops York Furnace Draft Inducer Motor Replacement Part S1 32642583000. Right now, for tonight, I had to wire the motor to start manually. Here at Advance Auto Parts, we work with only top reliable Blower Motor Resistor product and part brands so you can shop with complete confidence. Anything from no air circulation to annoying or noisy operation. This should start the blower right away. It's running for 2 minutes, turns off for another 2, then turns on again. Once it gets within a degree or 2 of the set temp, aux goes off and the heat pump runs until it hits the set temp. Same result. What is a b lower motor resistor and where is it located?. This would be normal. September 2019. Now that you understand what it is, now we can discuss how to properly troubleshoot the X-13 motor. Blower motor control resistors restrict the voltage that goes to the blower motor thus providing different fan speeds. My home A/C blower motor runs for a few hours, then will not start again after reaching set temperature. Start for maybe half an hour and then stops again for several hours. I've even found dead mice in blower motors that have caused this issue. Blower was making noise then stopped working. Some conditions that cause unexpected furnace fan operation may be dangerous, risking overheating of the furnace heat exchanger which in turn risks cracks and even carbon. If your thermostat controls the furnace and the air conditioner make sure the switch is set to FURNACE. Check the furnace flame for a complete blue color. BMW Blower Motor Inoperative, No Air Flow, Diagnosing – Motor vs. There are a lot of components to look at if the furnace isn't working. They are given different names to confuse the common homeowner. My 4450 ac blower motor worked fine all day yesterday until the last 2 hours and then it shut off. • Voltage symbols vary among different multimeters and may be displayed as: VAC, AC, V, or a V beneath a wavy line. Step 1—Adaptive Heating Mode—Single-Stage Thermostat with 2-Stage Heating. just acts like it isn't even on. The AC will start out the day working great! Cold air blows out it will run for an hour or two and before it gets to temp the blower motor shuts off while the compressor continues to run. If the call for heat continues uninterrupted, after a further 8 minutes, the blower switches to a higher. com or Rockauto. You don't need to know what a blower motor is to check that it is working properly. Go to page number indicated in Index for CLEANUP AND STARTUP INSTRUCTIONS. The blower motor resistor is located right at the blower motor under the passenger side dash board. If problem persists on an intermittent basis, replace entire blower motor or blower control module attached to —. Parts needed: Blower control module, AC-Delco 15-72813 or GM 88892976 Tools needed: Screwdrivers, torx bits and sockets. All the while the furnace is still running, after about 20 seconds or so, the blower starts again and continues running as normal. Clear out any debris from your blower motor. Power then flows to the blower motor. The blower behind the cooling coil starts sucking the room air, which is at high temperature and also carries the dirt and dust particles. 1999 F150 5. Then try removing it. Blower motor stops working. I can turn the A/C switch off at the thermostat and wait a while (about an hour, then turn it on again and the blower will work again. it it makes the noise its the blower. The most common symptom of a faulty blower motor resistor is a blower fan that only works on one speed, usually high. Also tried jumperimg the motor though the 3 and 15 pins on the harness and wiring the 120 direct to another power source bypassing the furnace all together. It may be bushings going bad in blower and binding or a poor connection. 5 sec), the engine will start and the rear blower will continue running if left at high speed. I put a new blower in last winter from checker auto parts cause my other one squealed and I seem to remember it working good when I put the new one in. 12 Volt Source -> Heater Blower Fuses -> Blower Motor Relay -> Blower Motor Resistor -> Blower Motor When testing for power, use a test light, it is a lot easier than having to place your leads on a good ground, place the other one into a prong, and all at the same time, look for a number on your multimeter. I know you don't want to start throwing parts and money into it, but these are known issues (blower motor resistor and the door actuator motor). (Common Problem-- '99 to 04 Cherokee) In the Cherokees with ATC ( some call it: AZC - Auto Zone Control) The PROBLEM IS THIS: With the ATC System -- The CONNECTOR on the Blower Motor Control Module-- OVERHEATS Resulting in Intermittent OR NO Operation of the Blower Motor!. The furnace ignites but when the thermostat senses it reaches temperature and the gas turns off the furnace blower does not turn off.