Depending on the make and model it could be the switch or on some cars the circuitry includes additional components like a small circuit board. answer most likey to be the fan switch, a blower motor does not alter the temperature only blows more air to be heated thru heater
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Related Questions
What would cause the blower motor on a 2002 Malibu to work only at high speed?
I would suspect the blower motor speed resister is shot.
What else would stop a blower motor from changing speed 1234speed dont work?
If you only have high speed I would blame the blower speed resister. If you have no speeds and the fuse is good, I would blame the blower motor or the switch.
What would cause your blower motor to work on only one speed on a 97 Chevy k1500?
If the one speed it works on is high speed, it is the blower motor speed resisitor that is bad.
What would cause the blower motor on a 2001 Malibu to work only at high speed?
Probably a bad blower motor resistor
Your heater blower will just work on high speed?
The blower motor speed resistor is burned out. The high speed function bypasses the resistor. The speed resistor is generally located near to the blower motor.
What would cause blower motor to work on high only on a 2002 Dodge Durango?
I would suspect the blower motor speed resistor is bad.
What is the purpose for the relay fuse for the blower in the 1993 Cadillac deville?
The blower motor fuse protects the blower motor electrical circuit. The blower motor relay operates only the high speed function of the blower motor. The blower motor speed resistor operates the lower speed functions of the blower motor.
Where is the high speed resister on my 2003 winstar blower motor?
It would have a high speed relay and it would be in the power distribution box under the hood. The blower speed resister is for the lower speeds only.
How do you fix heater fan when it stops working on a 1994 Chevy s10?
If you have no blower speeds at all, first check the fuse. If the fuse is okay I would suspect the blower speed switch and its electrical plug has melted. If the switch checks okay I would suspect the blower motor is bad. If you have high speed only, I would replace the blower motor speed resistor. If you have all lower blower speeds but no high speed, replace the high speed relay.
Why the Blower motor not work on high speed on a jimmy 97?
If the blower works on slower speeds only I would suspect the high speed blower motor relay (under the hood in the power distribution box) or the switch itself. The blower speed resistor is working if all the slower speeds work.
What is a high speed relay?
Blower motor control?
You are not getting any power to the blower motor on a 2005 Chevy trailblazer?
If you have no speeds at all, including high speed and you have power at the fuse and the fuse is good, I would suspect the heater blower speed switch and or the electrical plug to the switch is cooked. If you have high speed only and the rest are dead, I would suspect the blower motor speed resistor.
I have a 2004 Chevy Colorado blower motor only works on high speed only?
Probably your blower motor speed resister is burned out.
Is there a relay for the blower motor in a 1989 dynasty?
Only for the high speed. The lower speeds are controlled with the use of a blower motor speed resistor.
What would cause my blower motor to only run at high speed on my 1998 Chevy Express?
The blower motor speed resistor is burned out. The resistor is usually found close to the blower motor. Auto parts stores carry that part and it is easy to replace.
Why does your 1999 Yukon heat only work on high?
If you are referring to the blower motor only working on the high speed setting, then the problem is the blower motor Resistor Pack is defective. Replace it. It can be the blower motor speed control switch but not likely.
If 2000 dodge ram heater blower motor has high speed only what is the issue?
If it has only high speed, the blower motor resistor has to be replaced to get all speeds back.
Where is the blower motor relay on an 89 s10 blazer?
The blower motor high speed relay is located under the hood, on the passenger side firewall close to the blower motor. The blower motor speed resistor is also located in that same area.
Why does your heater blower only run on high?
The blower motor speed resistor is burned out.
Where is the blower motor relay located on a 1999 Chevy blazer?
The blower motor relay for high speed would be located in the power distribution box under the hood.
What do you do if your 1998 Nissan sentra blower motor only blow on high speed?
More than likely the blower motor speed resistor burned out.
Where is the heater relay switch in 1997 Chevy blazer?
The high speed relay for the blower motor would be found under the hood, on the passenger side of the firewall, close to the blower motor speed resistor.
What would cause your blower motor to only run on high in your Chevy Express?
The blower motor speed resistor is burned out. The resistor is located close to the blower motor and is easy to change. Your local auto parts store will have that part for you.
Where is the high speed relay for the blower motor located in a 1996 sonoma?
Under the hood, on the firewall, passenger side, close to the blower motor speed resistor.
Does blower motor relay make fan run?
A typical blower motor relay only operates the high speed function.
