Best Answer

Beause there is probably a short/bad connection in the switch, or the blower motor itself

User Avatar

Wiki User

โˆ™ 2004-11-18 12:52:59
This answer is:
User Avatar

Add your answer:

Earn +5 pts
Q: Why would the fuses for the heater keep blowing in a 1985 Blazer?
Write your answer...

Related Questions

Why do you keep blowing fuses when you turn on the heater fan but when you take out the compressor fuse it doesnt blow the fuses?

The compressor is coming on because you have the heater set to defrost. Take it off defrost and the compressor will not come on. I would suspect the compressor is locked up.

What kind of fuses do a 78 blazer take?

That would be fusible for older models

Why would the heat stop working on 91 Chevy blazer?

Is it blowing cold air only or not blowing any air at all.

Why would a 2000 Saturn heater only blowing warm air?

it is a heater. heat. it blows heat. warm air

Why would you have antifreeze leaking from under the dash on 1989 S10 Blazer?

heater core???

Why would a 2001 Chevy Blazer heater only blow cold air?

Low coolant in the system. Defective heater control valve. Clogged heater core.

Why would your headlights stop working on a 1998 Chevy blazer?

Check bulbs, fuses, and check for wiring problems

What should you do if the brake lights keep going out on your 1992 Chevy Cavalier?

Are you blowing fuses or are the bulbs blowing? Blowing fuses would be a sign of any wires or metal contacts in your brake circuit grounding out or shorting on themselves. You'll have to check all of the wiring in your brake light/switch circuit to be sure.

How would you troubleshoot a problem with the heater fuse blowing regularly?

The fan motor has a short...change it.

Why would your heater fan not blow when you it turn on in a 1987 full size Blazer?

check the switches and the motor

What would cause heater to stop blowing on 2006 caravan?

Fuse, switch, speed resistor or motor.

What would cause the dash light fuse blows in 96 cavalier?

you probally have a bad wire that is shorting out and blowing your fuses.

Why would a heater on a 2001 Chevy Blazer blow cold air if the thermostat was just replaced?

The heater valve could be failing to open for one reason or another.

What would cause the horh fuse in a 1995 checvy s-10 blazer keep blowing?

It being an American vehicle

Why would a home heater be blowing cold air?

Only the fan is working, there is no gas burning (gas heater) or the electric heating element is not working(electric heater)Answeris it electric gas or oil Its gas.

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?

Why do you keep blowing fuses for your heater on your 1991 cavalier you have no heat and no blower and the car overheats after about a half an hour?

I would replace the thermostat, it's a cheap part and could explain the overheating, also is your fan running? If it won;t kick on then there is the overheating prob. Might just be a relay or fuse. You might be blowing fuses because of a short in the heater control pannel. I had to replace it on my 94. It cost about $30 dollars from the junk yard and solved my problems. I would start with these few simple fixes. Hope they help, if not, take it to a garage that offers free estimates, then fix the problems they find. I do that sometimes also. Replace the Thermostat.

Why would a car heater be blowing cold air?

AnswerBad thermostat, clogged heater core, or a defective heater control switch. If an engine has not been running long it will not have warmed up, the warmth from a car heater usually comes from the engine.

1997 s10 blazer change heater coil?

To many steps to list here, would recomend purchasing a shop manual if you intend on replacing that heater core yourself.

Cause fuses keep blowing Honda?

If fuses keep blowing on your Honda, you likely have a short somewhere. You can get a multimeter and a copy of the wiring diagram so you can track down the short, or you can have a mechanic do it. If you've recently installed anything new such as a radio or a gauge or switch, that would be where you want to start.

What would the approximate cost of replacing the heater core for a 1998 Chevy s10 blazer?

$400 to $500 or more if the vehicle has AC, would be my guess.

What would cause radio and heater not to work on 2003 caravan?

Those are two seperate circuits. Start with checking the fuses. There is a fuse for the radio and a fuse for the heater blower motor.

Can a under body wash on a 82 would it cause problem s blowing fuel pump fuses blowing?

Answer: Depends if its a VW or a Ford. Vehicle undercarriages can be washed. External components are covered to keep mud and moisture away from electrical connections and wiring. The fuses are also covered from outside elements.

Why would the fuses for the air suspension and interior dome lights keep blowing in a 1992 Lincoln Town Car?

your air bags have a lick

If you boosted your 1980 suzuki gs1100e with your car and now you keep blowing headlight fuses would you have fried your voltage regulator?

most likely.