so i changed nothing on car for awhile(93 integra,no ac), recently the batter will die down from 12v to 7v at night so morning i cant start it... i checked fuses,None were bad but the heater control pannel stays lit when key is out of car..so i know its drawing power from there. with ign. key OFF,i took out one fuse at time to see if control panel went off, and fuse #20(15A Condensor fan) made the control pane lights go Off.

How can i fix the problem? just keep the fuse out?

 

i had the same problem.
only i had no idea what was draining my power


i eventually had to buy a new battery.
one with almost 3 times more voltage then my old one.

so far its been working fine...

 

So you're running a 36V battery? Pretty sure that doesn't exist... Did you mean one with more cranking amps or cold cranking amps?

 

I love how his fix was to completely ignore the problem also. Pull out your climate control and check the wiring. Sound like you have something loose somewhere that is contacting a constant.

 

i would check the ignition switch also. make sure its not loose and continuing to make contact with the wires for the climate control module wires. check all your wiring for damage and check your grounds too if the wiring seems undamaged.best bet would be to check continuity when it should be off. check between the wires for the climate control unit and the positive battery post or a known hot wire at all times for your fuse box under the dash. when you find the one that shouldnt be getting power follow it toward the battery and test both sides of the connectors or breaks in the wire till you find the problem

 

i dont have ac at all, and today just bought brand new battery 610cca and 740ca..and took #20 fuse out and tested battery 12.74v....and wrote it down..il check it everyday for week see if battery goes down..if it dosnt than can i just keep #20fuse(condensor fan) out of fuse box? i dont have ac so i dont need the fuse?..

(with fuse out) ign.key is on the control pannel is still lit,and when key is out the controll panel turns off.

(with fuse in) control panel stays lit either if ign. key is on or off