Heater Controls Issues

Reply Subscribe

Thread Tools

Search this Thread

11-08-2010, 11:48 AM

tgordon

Member

Thread Starter

Join Date: Nov 2010

Location: Salt Lake City, Utah

Posts: 170

Likes: 0

Received 0 Likes on 0 Posts

Year: 90

Model: Cherokee

Heater Controls Issues

I have issues with the heater control panel.
The blower will stop completely, then if i move the control to off and then to heat, vent or defrost it will again work.
Is this something I can repair or is it needing a replacement?
I know the hot/cold is cable operate, but it feels like the a/c and heate/defrost are a mechanical/electrical control.
Any help appreciated,
Troy

Reply Like

11-09-2010, 01:44 PM

EVcherokee

Seasoned Member

Join Date: Sep 2009

Location: Everett, WA

Posts: 373

Likes: 0

Received 0 Likes on 0 Posts

Year: 1990

Model: Cherokee

Engine: 4.0l

What year? When does the blower stop exactly?

Reply Like

11-10-2010, 05:16 PM

theangler

Seasoned Member

Join Date: Aug 2008

Location: Maine

Posts: 494

Likes: 0

Received 3 Likes on 3 Posts

Year: 1991 Laredo

Model: Cherokee

Engine: 4.0L H.O.

I can't adjust my heat position. I get either off or defrost. Any position other than off goes to windshield defrost. Any ideas?

Reply Like

11-10-2010, 07:03 PM

EVcherokee

Seasoned Member

Join Date: Sep 2009

Location: Everett, WA

Posts: 373

Likes: 0

Received 0 Likes on 0 Posts

Year: 1990

Model: Cherokee

Engine: 4.0l

Quote:

Originally Posted by theangler

I can't adjust my heat position. I get either off or defrost. Any position other than off goes to windshield defrost. Any ideas?

sounds like you lost vacuum to your heater control switch. By default it will switch to defrost only, because most if not all state require a defrost working to be street legal. Check your lines and your'll probably figure it out.

Reply Like