HVAC FAN is draining Battery with Ign. key off, Why?


Asked by Jul 23, 2013 at 06:42 PM about the 1992 Cadillac Eldorado Base Coupe

Question type: Maintenance & Repair

HVAC keeps running after engine is stopped and Ignition is turned off and AC is
switched off.

3 Answers


Sounds like a bad blower motor relay or programmer. HTH. -Jim


Thanks Jim, It was the fan relay unit, next to fan motor on firewall, and the fan motor was shot. Replaced both, all is fine. 1st TankerSki

1 out of 1 people think this is helpful.

Very glad to hear that. Thanks for letting us know. -Jim

Your Answer

Add photo

Related Questions

  • Why does our battery keep going dead? 5 answers

    we keep putting batteries in the car and within a week it is dead. We just put $500. into and it was good for 3 months and we out to start it the other day and it was dead. There has to be somethin...

    1999 Cadillac Eldorado Base Coupe


    Maintenance & Repair

  • my car wont star WHY? 4 answers

    i have a 2000 cadillac eldorado ESC im having starting problems. ITs not the alternator or the battery had them both checked out. over night my car dies completely wont start but when i get a boost ...

    2000 Cadillac Eldorado ESC Coupe


    Maintenance & Repair

  • 98 Cadillac ElDorado ETC ignition switch 6 answers

    I have been having parasitic battery drain problems. I believe that I have traced the problems back to the ignition switch. I would like to know what contacts are made in each key position for further...

    1998 Cadillac Eldorado


    Maintenance & Repair

  • Why doesn't the Eldorado start? 2 answers

    I am a novice d.i.y.er. I have a 92 eldorado 4.9 base with 125,000 mile on it. The battery, alternator, water pump, serpentine belt and tension pulley are all new. At first the alternator would cut ...

    1992 Cadillac Eldorado Base Coupe


    Maintenance & Repair

  • HVAC blower 1 answer

    Blower only works occasionally. I have installed new resistor. Fuse is good. In either heat or A/C, blower only works occasionally. Everything else works, and speed indicator displays normally. Accord...

    2004 Cadillac Seville SLS


    Maintenance & Repair


Looking for a Used Eldorado in your area?

CarGurus has 444 nationwide Eldorado listings starting at $2,950.


Search Cadillac Eldorado Questions

Cadillac Eldorado Experts

#1 spiderblu
Reputation 760
#2 joemom
Reputation 280
#3 lightGear
Reputation 230
View All

Related Models For Sale

Used Cadillac DeVille"
2,392 listings starting at $1,600
Used Chevrolet Corvette"
425 Great Deals out of 20,186 listings starting at $3,688
Used Ford Mustang"
724 Great Deals out of 41,223 listings starting at $900
Used Chevrolet Camaro"
813 Great Deals out of 39,041 listings starting at $2,650
Used Lincoln Town Car"
55 Great Deals out of 2,408 listings starting at $1,542
Used Lincoln Continental"
1,860 listings starting at $42,501