Problem with heater/ac control unit???
#1
Problem with heater/ac control unit???
I have a 1992 gxe. The heater/ac stopped working recently. For a while it would work now and then, randomly. When it worked the AC heater worked fine. Now it will come on for a second every now and then if I mess with it. First I removed and serviced the blower motor, as this used to be a common problem with my 90 stanza gxe. I then realized the the lights on the control unit do not come on at all anymore. Would this sugest the problem is with the heater/ac control unit? Is there a way to test it? What else can I do to narrow the problem down?
Cheers,
Matthew
Cheers,
Matthew
#3
Re: Problem with heater/ac control unit???
Yes I did check the fuses. I had all of the dash apart looking for something, but stopped short of pulling the control unit out. Could it be a relay? Or would the lights on the control unit still be lit if it was a relay? Is there a way to test the control unit if I remove it? How much is a new heater/ac control unit, I guess I can check online but just curious if someone has done this recently.
Cheers,
Matthew
Cheers,
Matthew
Originally posted by mduggan
I have a 1992 gxe. The heater/ac stopped working recently. For a while it would work now and then, randomly. When it worked the AC heater worked fine. Now it will come on for a second every now and then if I mess with it. First I removed and serviced the blower motor, as this used to be a common problem with my 90 stanza gxe. I then realized the the lights on the control unit do not come on at all anymore. Would this sugest the problem is with the heater/ac control unit? Is there a way to test it? What else can I do to narrow the problem down?
Cheers,
Matthew
I have a 1992 gxe. The heater/ac stopped working recently. For a while it would work now and then, randomly. When it worked the AC heater worked fine. Now it will come on for a second every now and then if I mess with it. First I removed and serviced the blower motor, as this used to be a common problem with my 90 stanza gxe. I then realized the the lights on the control unit do not come on at all anymore. Would this sugest the problem is with the heater/ac control unit? Is there a way to test it? What else can I do to narrow the problem down?
Cheers,
Matthew
#4
Problem Solved
I after doing all I could do with my limited resources and knowledge I took the car to the dealer. They had the car for a couple of days and finally determined it was a bad ground in the wiring harness for the heater control unit. They wired a new ground into the harness and everything is working again. They were nice and only charged me 3 hours. Hope this may help someone someday.
#5
Re: Problem Solved
Originally posted by mduggan
I after doing all I could do with my limited resources and knowledge I took the car to the dealer. They had the car for a couple of days and finally determined it was a bad ground in the wiring harness for the heater control unit. They wired a new ground into the harness and everything is working again. They were nice and only charged me 3 hours. Hope this may help someone someday.
I after doing all I could do with my limited resources and knowledge I took the car to the dealer. They had the car for a couple of days and finally determined it was a bad ground in the wiring harness for the heater control unit. They wired a new ground into the harness and everything is working again. They were nice and only charged me 3 hours. Hope this may help someone someday.
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