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The Blower Motor Relay is shot! You have 2 one for high speed and one for low, they are located under the dash either in the center of the vehicle or off to the right more near the blower motor itself. In some trucks like my 93 Chevy C1500 the high and the low relay are the same part but in other trucks they are 2 different parts. If your stuck on high the low relay needs to be replaced and on stuck on low the high needs replacing. Happy fixing!
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∙ 12y ago
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I have a 2004 Chevy Colorado blower motor only works on high speed only?
Probably your blower motor speed resister is burned out.
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.
Heater only works on high?
The blower motor speed resistor is burned out.
How do you fix the blower motor switch that only works on high on a 2001 dodge durango?
The blower motor speed resistor is burned out.
Why does your blower motor in Toyota Camry works on only high?
the resistor for the blower motor is busted blower works on high with out it
Heater motor only works on high speed in 2001 ford ranger?
Normally when a heater blower motor only works on the High setting, it is caused by a defective Blower Motor Resistor Pack. The fix is to, Replace it. In very rare instances it can also be a defective blower motor speed control switch, but rarely.
How do you tell if a blower motor relay is bad?
99% of the time, the blower motor relay, or resistor block,will be bad if the fan motor only works on high speed.
What is wrong if your blower fan motor only works on high speed on a 2002 Chevy suburban?
blower resistor is bad
Why Fan works only on high speed?
More than likely the blower motor speed resistor is burned out.
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.
The blower motor on your 1990 ford aerostar seems like it only works when it is on max ac how can you get it to work on the other selectionsshould you replace the blower motor or is there a wayto test?
If you are saying that the blower motor only works on the high speed setting, then the Blower Motor Resistor is defective and needs replacing.
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.
