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cheack the reisat switch for burns its atacched to the blower houseing under the dash or on fire wall under the hood

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18y ago

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Do you have a bad switch if heater goes on and off all the time and fan only works on hi?

You most likely have a problem with your blower RESISTOR PACK or rheostat. This is what controls the high, med and low speeds on your heater. Where it is and how to change it depends on your vehicle.


The heater motor only works on high where is the resistor located?

Check the fuses. The fuse for the blower HIGH is under the hood in the power distrubition box. the one for the low speeds should be in the fuse box inside the cab.


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Maybe low coolant level


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....


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Resistor on the heater blower motor has failed


Why does the heater fan only work on high on a 2001 safari?

Check the low speed relay and the resistor at the motor


Why does heater fan work only on high on your 2001 Chevy cavalier?

try replaceing the switch that controls the low to high for heater It's gonna be the blower motor resistor (near the blower motor).


What is a heater blower resistor?

Heater blower resistor is what controls the low medium high speeds...


98 GMC pick up heater fan only works on high?

Usually when the heater only works on high it is because the resistor has went bad. The resistor is what put resistance on the fan to make it work on low, medium, and even off. Since the resistor is bad it only works on high because there is no resistance needed. The resistor part you need should not be expensive at all, I just replaced mine in my Jeep Wrangler and it was only 35.00 at Auto Zone I believe. All it is, is a plug that you will put in instead of your old one. It should be back behind your glove compartment or under the lower side if the passenger side of the dash. Good luck!


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either the switch or the fan motor


My dodge heater blower control only works on low what might be the problem?

Dodges are good for blowing fuses. If that is not it, the fan switch might need replaced.


Why does the ac cools only a little although the heater works perfectly fine for my 1999 Camry?

Perhaps low on refrigerant or control cable not adjusted properly