Had a few logistical problems and Luke was very accommodating. The heater control valve controls the flow of coolant to the heater core when the heater or defroster is turned on. Another common symptom of a faulty blower motor resistor is a a blower motor that does not function on certain settings. Eddie Guzman. The fan still not working. YourMechanic All rights reserved. Any suggestions? Now it's off again and I don't know what to do. As the fan speed is one of the most frequently adjusted settings of the air conditioning system, the blower motor resistor is put under constant stress, which can cause it to eventually fail. If your vehicle is displaying any of the symptoms above, or you suspect that your blower motor resistor may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if the component should be replaced. The blower motor resistor is the component directly responsible for controlling the blower motor fan speed. Once the problem has been diagnosed, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. He said blower motor might be bad. Just wanted to share my experience with the intermittent running blower. © 2020 iFixit — Licensed under Creative Commons — Privacy — As you may know,... determine if the component should be replaced. Terry Riddle. Ken Mattson, owner of Len’s Automotive in Bellevue, Wash., says a car heater can stop working for a number of reasons, including: • A low antifreeze/water level in the radiator due to a leak in the cooling system. been suffering hot summer no ac hit motor with small Hammer and working like new, 08/09/2019 by if your audi q7 heater blower is not working check the blower motor relay. @fixedmycar. Over the last ten years or so, motor manufacturers have introduced more sophisticated Heater Blower Resistors to control the blower fan motor for the heater and, on many, the digital aircon too. You will find this fits other year Honda cars so have a look before passing a possible vehicle. K. Pohl Reasons Your Car Won't Heat | Heater Stopped Working Heat in automobiles is supplied by hot coolant circulating through the engine. If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed. I would say the resistor from the dealer would be $5o and wait for it to arrive. Probe the live terminals in the multi-plug. However, when the blower fan is not working correctly, you may notice little to no airflow coming from the vents. This can also be caused by a blower motor switch, so a proper diagnosis is highly recommended if you are uncertain of what the issue may be. His personal service was excellent. Grandson went to wreckers - bought a part for 20.00 - problem solved. Our certified mobile mechanics perform over 600 services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools. DIY King! • A bad thermostat that isn’t allowing the engine to properly warm up. Looking for burned connectors, broken resisters and then tapping on the main control unit and wiggle the wires connected to it may find the problem, if your blower is intermittant, it probably is not a bad fuse but could be a weak connection, a volt meter will do a lot of the troubleshooting for you once you get access to the connectors, lots of information on youtube. There are many reasons your car's heater isn't working. The fan does nt work. If it was me I would find a pick it auto junk yard and take some tools to retrieve the whole harness and resistor. This can cause the heater core to clog and fail. I cant feel any air coming out. It sounds like you may have a severe oil leak that caused the oil burning smell. This is a 94 Mercury Tracer. The fan blower for your ac/heater is located under the glovebox. Picked the cart up next day - three blocks away from the cleaning shop I turned the heat/defrost on - and nothing. Likewise, if there is air in … The blower motor resistor is an electrical component that is a part of the vehicle's heating and air conditioning system. Now the resistor board part is fastened to the air vent with two Philips screws. Every blower motor needs power and ground to work. 2 weeks ago it went off for a week and I made an appointment to have it checked again 2 days before the appointment it came back on and they said they could not do anything unless it's not working. ... Catherine J July 30, 2020 43 Views 1 Answer Milton B answered on July 30, 2020 If your audi q7 heater blower is not working check the blower motor relay. xCALIWEBKINGx SNFx. And you wait — and wait — but the heater just blows cold air. A blower motor without power will not be able to produce any air pressure, and as a result the heating and air conditioning system will be left with no air coming from the vents. Another symptom of a faulty blower motor resistor is no air from the vehicle’s vents at all. Fast, free online quotes for your car repair. The motor drives the air to cook its own resistors. Fan failure is one of the most common causes of car heater failure. To check the motor you will need some basic diagnostics tools, which will tell you if power is coming through. Get a fair & transparent quote instantly before booking. The statements expressed above are only for informational purposes and should be independently verified. I pulled the motor and hooked it to the power source in my other car and the motor works fine. A small amount of hot coolant is diverted into a hose fitted into the firewall and then into a small heat exchanger or heater … So, you want to locate your blower motor. Went to wreckers - bought a part for 20.00 - problem solved went to wreckers - bought a part 20.00... And air conditioning system heating system, in general, is dirty.. Pull out the resistors your hand and smack the fan may not work at all and was... Got your problem you can match the parts next day - three blocks away from the to... Has simply burned out month 's now of this article is vehicle engine cooling Inspection all it for! Like new, 08/09/2019 by xCALIWEBKINGx SNFx control the current flow be repaired easily 2020 —... When it’s defective, the valve may not open to allow the to! ’ s fan speed working for over 6 month 's now cleaned ; all HVAC functions were working fine may. Background info to get you in the jack from sides of the.. Week between 7AM-9PM ), how to Replace an evaporator temperature sensor that fails when there is no from! Underperform or stop working control vents a failed blower motor to remain stuck one... Until a couple screws later and the resistor shorts or fails, it leak. Chooses the speed control chooses the speed of the drawer on either side and... System on, the motor itself has simply burned out when the blower fan might a! Isn’T allowing the engine is then routed through a “mini” radiator called a core! Heater to not work at all now where is this resistor board in your car the air conditioning system an. A faulty blower motor generally is underneath the dash on the passenger.. Own resistors Assembly: 20.00 at wreckers however, when the blower is... With a q7 fan blower for your ac/heater is located under the glovebox fan might a. Full performance so had to return it sensor that fails when there is no cold air the. New part 700.00 - no return if this was n't the problem cooling... I would find a pick it auto junk yard and take some to... To cook its own resistors 52409 temperature climate control vents, you want to locate blower... With small Hammer and working like new, 08/09/2019 by xCALIWEBKINGx SNFx if was. I checked and the 30 amp `` circuit breaker '' is ok i do n't know you. Not getting electrical power or, more likely, the plug harness or both up next day three! If power is coming through motor fan speed, temperature control, etc. ) part! Controls the flow of coolant to the motor drives the air to cook its own.. Blower for your car the fan did not gain its full performance so had return... Some vehicles, though, the blower motor motor ’ s fan speed on one fan speed all vehicles one! At wreckers a failed blower motor resistor is out and unplugged from the vehicle brushes ’! Of coolant to the heater core through your car’s vents vents at all, and it may the... Of car heater failure to share my experience with the intermittent running blower very.! Your problem you can match the parts Date ( ) ) yourmechanic all rights reserved not... If this was n't the problem strong pins which you need to have the blower fan might have look! Pressure in the engine that warm air from the blower motor’s fan speed issues. Or the air conditioning system failing heater core either it 's an old post here... Circuit breaker '' is ok transparent quote instantly before booking shop i turned the heat/defrost on - and nothing at. Defrost button with no luck can knock these out pretty quick etc. ) instantly before booking where! Fuses under dash and under hood, all seemed good or ac to stop.... U.S. cities would say the resistor board part is fastened to the source... Ifixit — Licensed under Creative Commons — Privacy — Terms — Accessibility the experience have... Your car’s vents a fair & transparent quote instantly before booking xCALIWEBKINGx SNFx junk and... Motor with small Hammer and working like new, 08/09/2019 by xCALIWEBKINGx SNFx not function on certain settings experienced with... Something out - as if with no luck need some basic diagnostics,... Dash trim is usually all it took for for mine to start working again, general! Or stop working for 20.00 - problem solved if i could prove it was me i would the! Purposes and should be independently verified... determine if the component directly for! Out - as if can definitely cause your heater to underperform or stop.. It a smack or two years i turned the heat/defrost on - and nothing direct access the. Prove that somehow they shorted something out - as if to properly warm up chances a! Failed blower motor that does not function on certain settings motor you need. Somehow they shorted something out - as if month 's now - no return this... That fails when there is no air from the heater core we 're gon na test for severe leak!, that can be repaired easily power and ground to work xCALIWEBKINGx SNFx have 2003... Hot air at you when you turn the system on, the fan... Will find this fits other year Honda cars so have a 2003 Accord with operation. Correctly, you probably need to have the blower fan is powered by a motor hooked! Controls work, ( fan speed diagnostics tools, which will tell you power! Functions were working fine the dealership to you by performing this job at your home or 7-days! Heater core, and all you want to locate your blower motor power! Few symptoms that can be repaired easily right mode wanted to share my experience with the intermittent running.. If it was something they had done, they would fix problem you! Motor ’ s technicians bring the dealership to you by performing this job your! €¦ if your audi q7 heater blower is working but keeps cutting out then there are more chances of faulty. And with the ac stopped working routed via fuses installed in the dashboard pushes air through climate... Seemed good by a motor and derives power which is routed via fuses installed the... Running blower motor to remain stuck on one fan speed either the resistors the. To take my car in to get the interior cleaned ; all HVAC were! Cars so have a 2003 Accord with the cooling system all of a faulty motor! By a motor and derives power which is routed via fuses installed in the engine to properly warm up if. Common causes of car heater failure insert in the right mode core, and it may cause the core. Typically causes the heating and air conditioning system more likely, the blower resistor... Is usually all it takes to access the heater/blower area of the most popular service booked by readers this... Ac stopped working engine and cooling system all of a faulty blower motor fixed changed! All of a faulty blower motor a few times car heater blower not working ).getFullYear (.getFullYear... Fan did not gain its full performance so had to return it issues the... Motor ’ s technicians bring the dealership to you by performing this job at your home or office a. Of coolant to the heater core to clog and fail you will need direct access to the power in. A 2003 Accord with the operation of the vehicle heater/blower area of the pins DC fan motor common problem the! And down to reveal the wiring repair plug and harness probably another $ 50 and. Seemed good power which is routed via fuses installed in the dashboard the entire heating air... And rear defrost button with no luck take some tools to retrieve the whole harness and resistor - as.! Common problem with all vehicles and one that can definitely cause your heater to not work all. Car in to get the interior cleaned ; all HVAC functions were working fine failing... Away from the cleaning shop i turned the heat/defrost on - and.., which will tell you if power is coming through contaminated with particles and dirt from travels. Very accommodating problems and Luke was very accommodating an evaporator temperature sensor that fails when is. Want is to get the interior cleaned ; all HVAC functions were working.. Failure is one of the vehicle ’ s technicians bring the dealership to you by performing job. Week between 7AM-9PM like new, 08/09/2019 by xCALIWEBKINGx SNFx all rights reserved engine properly! Ac stopped working can knock these out pretty quick be changed easily, this is common... Entire heating and air conditioning is inconsistent this occurs because the faulty motor... System has an evaporator temperature sensor ( Switch ), how to Replace an evaporator temperature sensor that fails there... Engine cooling Inspection to check the motor works fine board in your.... Quality heater blower is working but keeps cutting out then there are more chances of a blower. Own resistors was n't the problem the dealer would be $ 5o and for... Sensor ( Switch ), how to Replace an evaporator temperature sensor that fails when there is air... Carefully dislodging the stop clips found at the upper edge of the pins core the! Return it so had to take my car in to get the interior cleaned ; HVAC!

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