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The blower motor resistor is bad and goes to high fan.
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∙ 15y ago
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Why is your fan heater control switch is permanently on full even though the switch is on off?
It could be the high speed heater motor relay is stuck on or the switch itself is broken.
Why does your heater fan stay on your 1995 Concorde?
The reason a heater fan is staying on may be an issue with the switch. It is possible the switch is stuck open. It may be resolved with a good cleaning of the contacts on the switch, or replacing the switch itself.
Is there relay switch for heater fan?
Yes there is, but it only operates the high speed function.
Why does your Heater fan only blow on high speed?
Switch problem? Cables disconnected?
Honda Odyssey heater fan only runs on high speed?
There are multiple causes as to this condition. There may be a bad switch that is stuck on the high position. The motor itself can have a problem being regulated correctly, for example also.
Why don't the heater fan work on high on my 1991 blazer S10?
Odds are you need a fan switch, It is very common for the high on GM fan switches to go out.
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It is the resistor, replace it.
What causes the high speed fan to keep running on 2002 windstar?
The switch had a meltdown or the high speed relay is stuck.
Why is Heater fan on 1995 ford van only working on high?
My 1994 did the same thing.....the problem was in the high/low switch....
How do you bypass heater fan switch to make heater fan blow all the time?
Run a new ignition switch controlled "hot" wire directly to fan motor
2003 jeep wrangler heater fan switch works on high only?
Replace the blower motor resistor.
Heater fan works sometimes?
Not knowing what year, make and model you have, I would suspect the heater fan switch and or electrical plug to the switch is at fault.
