Heater won't turn off

Asked by Feb 06, 2015 at 08:57 AM about the Chevrolet Blazer

Question type: Maintenance & Repair

1 Answer

34,935

There are two possibilities. The ON-OFF switch is bad or your blower motor resistor is bad. Typically, when the resistor fails, you either have no power to the blower motor, or you only have one fan speed. I have never seen one go bad where the fan was always on. I would be more suspect of the ON-OFF switch. Not sure what year you have, but you may have to replace the whole climate control unit rather than just a simple switch. Try Ebay or your local salvage yard.

Your Answer

Add photo

Related Questions

  • heater blows warm then goes cold shortly after 1 answer

    when care is started and warms up the heater will blow warm air for 5 min then cools down . and wont warm until the car has been turned off for a period of time then the cycle starts over

    2001 Chevrolet Blazer 4 Door LT 4WD

    -

    Maintenance & Repair

  • Blazer has to be jumped, then i shut it off and won't start. 11 answers

    I came back from deployment and wife said the 1993 2 door blazer was dead. I went out there and it was thought since I had a little juice it was the positive battery cable. I jumped it and it ran fin...

    1993 Chevrolet Blazer

    -

    Maintenance & Repair

  • how do i turn off my autmatic head lights while i am in park? 16 answers

    When I start my vehicle the headlights turn on automatically and I have tried to turn the knob to turn them off but when I put the vehicle in park the headlights stay on as well. My question is how wo...

    2002 Chevrolet Blazer

    -

    Maintenance & Repair

  • how to shut off headlights on my 2000 trail blazer 1 answer

    Won't shut off after you turn car off even when not on automatic setting

    2000 Chevrolet Blazer 4 Door LT 4WD

    -

    Maintenance & Repair

  • why wont the heater shut off 1 answer

    heater runs after motor is turned off

    1990 Chevrolet Corvette Convertible

    -

    Maintenance & Repair

Search Chevrolet Blazer Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Chevrolet Blazer Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 1,840
#2 yetilikesbeer
yetilikesbeer
Reputation 1,110
#3 dandyoun
dandyoun
Reputation 660
View All

Related Models For Sale

Used Chevrolet TrailBlazer
106 Great Deals out of 5,282 listings starting at $900
Used Chevrolet Tahoe
852 Great Deals out of 28,369 listings starting at $1,700
Used Chevrolet S-10
10 Great Deals out of 1,632 listings starting at $1,795
Used Chevrolet Silverado 1500
2,741 Great Deals out of 149,178 listings starting at $1,500
Used GMC Jimmy
294 listings starting at $1,500
Used Ford Explorer
1,204 Great Deals out of 71,146 listings starting at $1,000
Used Ford Bronco
194 listings
Used Chevrolet Camaro
475 Great Deals out of 39,921 listings starting at $3,499
Used Jeep Grand Cherokee
999 Great Deals out of 65,973 listings starting at $1,500
Used Ford F-150
3,213 Great Deals out of 205,088 listings starting at $1,779
Used Jeep Cherokee
334 Great Deals out of 52,606 listings starting at $2,200
Used Jeep Wrangler
490 Great Deals out of 17,959 listings starting at $2,950
Used Chevrolet C/K 1500
1,095 listings starting at $1,895
Used Chevrolet Impala
937 Great Deals out of 35,463 listings starting at $1,995
Used Chevrolet Colorado
321 Great Deals out of 17,604 listings starting at $2,250