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The fan that controls the A/C and heater is stuck in the on position & running full blast. Puching the off button or manually puching the fan buttons does not do anything. The fan continues to run full blast.
Re: The fan that controls the A/C and heater is stuck in...
Sounds like a problem with the fan switch. If you can find the fuse for the blower motor, you could pull the fuse to stop the fan until you can get the problem fixed.
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In the heater plenum behind the glove box you should find a 4 or 5 wire connector. That is called the heater resistor it has a series of different thickness springs and controls the Resistance to ground. That is what controls fan speed. First check the connector for melting if so you need to replace the connector and resistor if not remove the two screws holding the resistor in place and remove the resistor, you should find the springs are broken and replace the resistor. Note there are a couple of other things that can cause this problem but 99% of the time its this.
Check the connection at the heater blower motor resistor.Wiggle or pull connector off and look for a melted pigtail these get very hot and usally are the cause of fan motor problems.Its located on passenger side of heat duct mounted with 2 screws.
its either of the 3 ur water pump is weak and couldnt supply the right amount of coolant to ur engine / ur radiator is clogged or your thermostatic valve is stuck up that restrict full flow of fluid to the radiator thats why when u use the heater that uses ur coolant hot water as a heating unit the temp. goes down...
the heater is in limp mode if you have electricity experience go to the library and get a manual because that heater does a wack of **** and you need to know how to press the right two buttons at once to get into the heater menus in the actual heater control
I just fixed mine. same problem, no ac light no fan. inside the heater control assembly there is a electric wiper arm on the fan switch. This arm connects all power for fan and ac. Mine broke out of the fan control switch. Dash is not too much problem to get out. Have to pull top dash center section out by puching forward and lifting out. pull all screws on center dash counsel. remove radio, two side covers that hide screwsand lower trim that holds emergency flasher switch. remove cables from heater control and wires and remove. Took me about an hour. The code on radio will need to be reset so make sure you have that handy. Hope this helps..
you need to replace the resister block for the fan speeds... it is located in/on the duct work near the fan. you will see a connector and two or three screws holding it in.
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