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I have a Pyrox firestarter HE424M and the fan is not working. What is the common cause of this problem?? Does it have a fuse?

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1993 audi 90cs is overheating fast and I don't think the fan is coming on! What do I do?

First of all check the fan fuse to c if it's ok if it is then replace your fan switch on the side of the radiator cause that tells the fan when to come and it's a common fault on most vw cars if all else fails u will need to test and c if the fan is still working,u can check that by either putting direct power to the fans wiring if it does work then change the thermostat

Jun 15, 2015 | 1993 Audi 90

1 Answer

Heater fan not working

The three most common problems for heater fans are
  1. Burned-out blower motor resistor. This is usually located on the engine side of the firewall. Sometimes one section of the resistor is burned out but others are still good, so the blower only works on the highest speed settings. If you have a burned-out resistor, check the blower bearings to make sure they are not stiff and causing the motor to draw too much current.
  2. The blower is actually working, but either the intake vent is plugged (I've seen vehicles with the heater core completely blocked by dirt, leaves and insects that came in through the vent), or the heater door is stuck closed.
  3. The motor bearings have gone bad (see # 1). This can cause the fuse to blow, although the resistor usually fries first.
I'm not sure how your car's cabin environmental control system is fused. Check any fuse that might apply, such as Vent/AC, HTR, FAN, etc. Generally you can identify the state of a blade-type fuse by inspection without removing it. If you have a blown fuse, check the blower motor before wasting money on a new fuse that will probably blow. Like any fan, it's supposed to turn easily, and there should not be any roughness or side-slop in the bearings.

Nov 14, 2011 | 2004 Renault 181

2 Answers

What make a car run hot

Thanks for choosing FixYa and welcome. If you are low on coolant fluid, it will cause it to overheat. Check your coolant fluid level. If your fans are not working or kicking on, it will cause overheating. If so, check the fuse for them. Check for leaking coolant on your lines. A bad radiator can cause overheating and a bad cap can cause overheating. Make sure the cap is snug. Make sure there are no leaks. Now, the most common issue would be a bad thermostat or a sticking thermostat. Next, I would say would be a bad water pump. Now, it could be the water pump valve or impeller, but that is not common. Also, a bad head gasket can cause overheating. Anyone of these can cause your issue. Check fluid first and fans. You may have a leak or a bad fuse. If the fans do not work, that is probably your problem. They should kick on when the car begins to heat up. If the fuse is good and they still don't work, it is either the wiring or the fan itself. I hope this helps you out. Take care. Rick

Sep 21, 2011 | 1992 Mazda 929

1 Answer

The car is overheating, when we would turn the A/C on the Rad fan would come on and it would cool down. However that no longer works. I think now it is the thermostat - any other ideas Thanks Gary

Hey there Gary, Welcome to FixYa. First, make sure the coolant level is correct. Make sure there are no leaks and make sure the fans are working. If they are not, check the fuses. If the fuses are good, you either have a bad fan or a bad wire. The most common issue is the thermostat. It may be bad or it may be sticking. Next, would be a water pump, valve. or impeller. Check to make sure the radiator is working also. It could also be a bad coolant cap or a bad head gasket. It sounds like you already know a little. The thermostat would be the most common, however, any other of these parts can cause the same issue. Best wishes.

May 13, 2011 | 1998 Saturn SL

2 Answers


There should be a seperate fuse for the lower fan speeds and another for high. If you have the owner's manual you will find a fuse diagram in it, if not then try going to and do a search for the fuse box diagram.

Feb 25, 2011 | 1999 Plymouth Voyager

1 Answer

What would cause the air conditioner to stop working? The fan does not move.

The most common problem that causes the fan not to work is the blowermotor resistor, this means no air blows inside the truck, then check the fuses and resistor, this resistor is located near the blower motor, this is located under the hood at firewall on the pass/side.

Aug 28, 2010 | 1999 Ford Explorer

1 Answer

I own a 2002 grand am gt the fans dont work so the car overheats

The most common problem I see is a blown cooling fan fuse, usually a 30 - 50 amp fuse and it's larger than the usual small push in fuses and is usually located under the hood in a fuse and relay panel. If you live in a northern climate the fans will often become frozen in place with ice and snow and cause the fuse to blow when they try to run. It's usually not noticed until hot weather hits then the engine will overheat because the fans can't run due to the blown fuse. You could also have a bad fan motor that has just simply quit so if you find that all the fuses are good then that is certainly a possibility. Hope this helps you out a bit!

Jun 25, 2010 | 2000 Pontiac Grand Am GT

1 Answer

Blower moter stuck on hi pulled fuse to stop smoke. now got no hi speed just 1 to 4 on dial. fuse says hihavc1

Replace your Hi blower fan relay and inspect your wire harness. Common for the Hi blower fan relay to over heat and short out causing for the fan to stay on hi without any other controls unless you full the fuse as you did and it's a good thing for it's know to cause car fires.
Thank you for using Fixya and replace the relay and inspect the wire harness for any melted wires that can cause a short. Good luck

Mar 29, 2010 | 2000 Pontiac Grand Prix

6 Answers

My heater fan as stoped working on my bmw320 d it has climate control but all lights are fine

Hello There

I'd suggest looking at the fuse to start with, This is the cause in most cases.

Hope this helps

May 08, 2009 | 2007 BMW 335i Coupe

1 Answer

A/C for 2004 chevy suburban issue

Automatic climate control or manual ? blower motor control processor , probably . or the blower motor , or the HVAC control module etc.... All these are just guesses , without testing the electrical circuits . Did you check the BLOWER fuse 40amp located in the under hood fuse / relay box And the HVAC /ECAS fuse 10amp in the under hood fuse box ? Plus HVAC I fuse 10amp located in the I/P fuse box .

May 07, 2017 | 2004 Chevrolet Suburban

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