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The air door under the Blazers dash could be stuck, or there could be a vacuum leak on the engine. The door opens and closes from vacuum, directing the air from heat to defrost.
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Your 1994 s10 blazer the control for your air defrost is stuck on defrost?
More than likely the vacuum feed line from the engine has been disconnected or cracked. When there is no vacuum supplied to the HVAC it reverts back to the defualt position, the defroster.
S10 Blazer Air conditioner is not working the switch on the dash that controls the system doesn't seem to do anything stuck on flowing air out the windshield defrost only?
Check the vacuum supply from the engine. If it is disconnected or cracked the system will default to defrost only.
How do you repair a rear defrost on a Chevy Blazer?
rub it
How do you repair ac controls on Sebring convertible?
If it's stuck in defrost your battery died and messed up the computer. Disconnect battery for 5 or more min. My 96 cooled and heated ok but was stuck in defrost
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 would hot air come out of the defroster and vent work but not the heater on 95 S10 blazer?
What causes heat to only come out of the defrost and vent but not the floor of a 1995 S10 Blazer?
How do you close a stuck sunroof on a 2002 Chevy Blazer?
take it to get fix
Why is the vent stuck in defrost on a 89 camaro?
most likely the cable is stuck, try oiling it, if all else fails buy a new one
1996 blazer air will only blow from defrost?
The default for heaters is to go to defrost if there is a problem in the system. You will have to get under the dash to find the problem. Probably best to take it in as they can get tricky without diagrams depending on the system
How do I fix the defrost on a 1997 Chrysler Sebring?
If it's stuck in defrost your battery died and messed up the computer. Disconnect battery for 5 or more min. Reconnect and it should ok then.
Why does your heaat only work on defrost in a 99 jeep wrangler?
Your air mix door is stuck or broken.
On a dodge ram 1500 why does the defrost only work if its on high?
The most common cause for the defrost not properly working is a malfunctioning blending door. The blending door might be stuck halfway open. This would cause the defrost not to work unless the fan is on high.
