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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.
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Why do you have the high speed only on the heater in your 1998 Ford Contour?
Bad blower resistor. I just replaced mine.
2001 Nissan Xterra how to replce a heater blower resitance pack blower only works on high speed?
I just need the location of the heater & blower unit of the 2001 Nissan Xtera. E-mail flores-rene@sbcglobal.net thank you
Why does your 2000 Ford Ranger ac heater fan switch only run on high speed setting?
What has happened is your blower motor resisor has failed. When you turn the fan speed switch those settings are resistances that "damp" the blower motor and it runs slower. When this fails, it just has full current to the blower motor. Sometimes these are called block resistors. That likely is the problem.
What is wrong when the heater AC blower motor only works on one speed Ford Explorer?
The blower motor works on only one speed. The blower motor resitor pack is defective and needs to be replaced. It is located on the blower housing in the engine compartment just below the blower motor.
1997 Chevy astro van heater blower does not work on high?
High speed uses a separate fuse. It's in the fuse box under the hood, large green 30 amp. If the fuse is not blown, suspect the blower resistor assembly at the front of the ac/heater box, just behind the washer bottle. Occassionally the fan switch itself may be defective.
Heater fan does not work 1983 ram?
Also I have found the resistor in the heater core area, but can not find a new one anywhere to order it. I dont know how to check it to see if it is bad. i just ran an fused wire to the blower itself and put in a switch. Now i have high speed or just off.
Does the dealership have to replace a heater blower motor in a Mercury Sable?
NO!This is a great do-it-yourself repair!Other than some cars having a bit of trim piece over the passenger side, blower motors are just 3, maybe 4 small screws and 1 electrical connector.Sidebar: the blower resistor that provides the ability to have more than one blower speed, is just to the left of the blower. An even easier repair, and not uncommon to fail (blows on high speed only).See "Related Questions" below for more
Why does Oldsmobile Intrigue blower run only on high speed?
because the blower motor is no good, for some reason it get damp in the blower motor chamber, and slowly the speeds start to go one by one until you just have high.
What would cause the heater and ac to just stop working in a 1992 GMC SIERRA and the light for them to not turn on?
The blower motor speed switch is burned out or the fuse is blown.
Ac compressor turns on only at low blower speed and not at high speed. Any ideas This is a 1990 626?
it's ur ac blower motor resistor. Mazda dealer only part. just translates the voltage to blower from when u turn the numbers 1-4 on dial.
How do you determine if the heater blower switch or heater blower motor is bad on a ford 2002 crown Victoria?
You can unplug the blower motor and run a jumper wire to test the blower motor. If it is grounded through the plug you'll have to run a ground wire to it also. Blower Motor tested good. The Problem was the Blower Motor Controller which was located on the firewall just below the Heater Hoses. Thanks for responses to question.
If the heater stopped working in a 2001 Chevy tracker do you have to replace the heater core or blower motor or both?
Could be several things. If the blower works on A/C or vent it is good. If the Heater core is not leaking (due to corrosion, which is a common problem) it is probably good. Could just be the Temperature cable is off the the blower door not allowing air to pass over the heater core. Just to name a few..........
