Question about 1985 Chevrolet Corvette

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Heater fan stopped working

I put a new control box in but fan doesnt blow.

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Have you checked the connector to the fan?? Is it burned or charred?

Posted on Apr 16, 2014

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1 Answer

Heater quit blowing


You need a new blower fan, however reaching under the glove box and giving the fan a good couple of smacks could revive it long enough to make a winter trip to get it fixed

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Could be the blower motor or the resistor. The resistor should be behind the glove box. You can look the part up online to see what it looks like.

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OUR 04 TRAILBLAZER, THE A/C STOPPED WORKING, IT WOULD WORK SOMETIMES AND BLOW COLD AIR NOW NOTHING COMES OUT, OR THE HEATER TOO.. LITTLE AIR WILL PULL THROUGH IF ON THE HIGHWAY, I CAN HEAR IT CLICK OVER...


a couple of things,1 blower motor fuse.2 blower motor gone out.3 switch on fan speed control switch not sending signal to fans.after checking the fuses.next check theswitch on control panel.set ac or heater.if fan still doesnt come on then replace it.when it work and then stops working there are a lot of possiblities that caused the prob relay too not fliping over inside staying close loop.hope this helps.

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Check the vacuum line from the engine that feeds into your AC/Heater controls. If it is cracked, broken, or collapses under vacuum, then replace it.

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Heater blower stops working


Hmm, a problem that I have not encountered before. My best guess is that some component within the heater setup is getting overheated and then it shuts off to avoid further damage. If the heater runs each time you start the car and then turns off during your travels, then this might be the case.

Secondly, there are circuit breakers located in the fuse box. These are silver and are about twice the size of a standard fuse. Unlike a standard fuse that blows once and is done, circuit breakers get hot and "trip". After they cool down the connection is made again. Look to see if a circuit breaker (sometimes labeled CB) is in the fuse box and serves the heater. You may want to get a new one.

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From the information that you've provided, it sounds as though the blower assembly went bad. You can access the blower by removing the glove box door and the panel behind it, which will reveal the heater core. The blower should be located on the side of it.

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1 Answer

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Most likely it does, if you can hit the motor and it will run. I can't say for sure but you might want to chk. to see if you got a heater blower motor resister. There located (if its got one) around the heater motor and it controls blower speeds, might be worth checking out.

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The heater resister switch has gone. You need to strip out the box and put a new switch in which costs around £20

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