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Diagram for Heating/Cooling System

Posted: Sun Jan 16, 2011 7:01 pm
by egrier
Hi there, I am new to this board, but had great with the Ulitmate Suburu Message Board in getting some rear struts :)
I am looking for a diagram for my heating system. I have heat, blower is working, but windshield defrost is not :(
Please email any info/ideas to me at ejablonski33@gmail.com
Thanks and have a great day,
Elizabeth

Re: Diagram for Heating/Cooling System

Posted: Mon Jan 17, 2011 6:44 pm
by Legacy777
Welcome to the BBS Elizabeth!

Does any of your other vent control work? ie. defrost, defrost heat, heat, bi-level, vent, etc?

If not, chances are good that the control unit solder joints are cracked and don't allow proper control of the mode selector. I've got a sticky thread in this forum on this issue.

http://www.bbs.legacycentral.org/viewto ... =10&t=1142

Depending on your skill level, you could replace the HVAC control unit with another one, or try and have the joints soldered.

What year is your Legacy?

Re: Diagram for Heating/Cooling System

Posted: Tue Jan 18, 2011 4:01 am
by Jessekrs123
Low charge in the A/C system would cause your defrosters to not work properly. I'd check to make sure your system is charged up enough,

Re: Diagram for Heating/Cooling System

Posted: Sun Mar 20, 2011 7:27 am
by egrier
Just an update.. The defroster's magically started working again and no issues sense then. Only difference is that here is Michigan, the temp warmed up a little for a few days. Possible they were literally froze in that position? Will never know, but glad to have my defrost back in working order :)