2007 CRD - Interior Fan sometimes does not come on

BigSensFan · 08-04-2012, 10:32 AM

Anyone else have this problem? First start up of theday it is fine... it is fine if it has been sitting for a few hours, but if I turn off the Jeep then come back out and start the Jeep back up, the Heat/AC fan does not come on (if I bang on the right side under the glove box sometimes it will kick in)

TangoTango · 08-05-2012, 07:04 AM

I would checck under the dash on the passenger side for the wire that connects to the blower. Sounds like it came loose.

jediknight · 08-06-2012, 10:08 PM

There is 2 wiring system for this ... One for the hi-fan and one for 1,2,3 fan speed. In this case the current goes into a resiatance located behind the glove box. This could be the problem if only speed 1 to 3 is your problem. If 4 is also not working then it could be your HVAC fan relay which is located in the fuse box under the hood.

BigSensFan · 08-07-2012, 02:18 PM

just to clarify... if it works, all settings work...when it doesn't none work

I will check the suggestions thanks

jediknight · 08-07-2012, 08:19 PM

Check the hvac relay in fuse box under the hood. In the same compartiment there is 2 or 3 identical relay... You can then switch them arround to verify your relay ...