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Faulty Function selector switch. Consider replacement.
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∙ 16y ago
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Why air will not blow full through upper vent only in your 2000 Pontiac Grand Am Blows at bi-level floor and defrost Even when dial is set to recirculate still blows bi-level?
blower motor resistor
2000 Chevy pick up fan only blows on a high speed?
You have a bad blower motor resister.........
Your 2001 Chevy astro van blows air by the defrost vents only any ideas?
You lost the vacuume supply coming from the engine, defrost is the default mode if a mafunction in the vacuume supply is lost.
Why would your heat only work on defrost?
ihave a 1986 chevette that when i turn defrost on it blows out heat and when i put heater on it blows out only cold air? ihave a 1986 chevette that when i turn defrost on it blows out heat and when i put heater on it blows out only cold air?
How do you fix the air conditioning if it only blows through the defrost and floor and not the vent in a 89 Chevy S10?
Check under the hood for a broken or disconnected vacuum line.
Why 2005 Dodge stratus heater ac clima control blows hot air all the the time and when set to defrost it blows straight when set straight blows to the defrost?
You either have a bad controller or a bad actuator.........
Why does my 2001 Chevy Prism heater blows hot air on highest fan speed but the lower speeds it blows cold air?
It has a bad "Blower Motor Resistor" The fan switch itself is fine.
What causes the blower fuse to instantly blow in a 99 Chevy blazer?
Short in the circuit somewhere. Try unplugging the blower motor, closing the circuit with a test lead or test light, and seeing if it blows then. If not, the problem would seem to be in the blower motor itself.
Blower motor blows weak?
it's a problem with the blower motor resistor
On your 2001 Chevy blazer it takes 10 minutes driving before the defrost or heater blows hot air then when slowing down it starts to blow cold air and when taking off again it blows hot Any suggestion?
thermostat is stuck open.
Why does a 96 Contour blow the blower fuse when the selector is put in the defrost position any speed but not when on front vents?
Try unplugging your AC compressor and see if it still blows the fuse. When you turn on your defrosters you also turn on your AC.
Blower motor resister blows out 2002 fordfocus?
Replace the blower motor also.
