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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.
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∙ 14y ago
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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 blower motor to work on high only on a 2002 Dodge Durango?
either the control head is bad or there is a blower motor resistor that is bad.
Could the blower resistor on my 1989 Dodge Dakota cause the AC not to work?
Possibly. A bad blower motor resistor would cause the blower motor to either not function or function only on one speed (usually high speed). The air conditioning system is probably set up such that if the blower isn't functioning at all, the air conditioner won't function. Otherwise the air conditioner would overheat.
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It depends on what kind of car you have. Some have a relay center.
Fan only blows on high 1991 Chevrolet CK1500?
More than likely the blower motor speed resister is shot. This part is available at you local auto parts store.
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 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.
What is a high speed relay?
Blower motor control?
How come the heater in a 2000 gm jimmy only works on high?
The blower speed resistor is burned out. It is located under the hood, on the firewall, passenger side, not far from the blower motor.
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.
I have a 2004 Chevy Colorado blower motor only works on high speed only?
Probably your blower motor speed resister is burned out.
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.
Why does your heater blower only run on high?
The blower motor speed resistor is burned out.
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.
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.
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.
