Heater Problem?
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Joined: Dec 2007
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Heater Problem?
My heat is not blowing at all. Seems like the blower motor is not working.
Before I start troubleshooting, is there a common issue with these, such as a relay, switch or motor that goes regularly? I'd like to have a head start on my troubleshooting.
Thanks!
1978 F-250 Supercab 4x4
Before I start troubleshooting, is there a common issue with these, such as a relay, switch or motor that goes regularly? I'd like to have a head start on my troubleshooting.
Thanks!
1978 F-250 Supercab 4x4
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
If it works on high speed only, check the blower resistor. It's easy to check visually. Take it out and look for any broken resistor coils.
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Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
In the last picture I posted, that resistor is bad. If you look closely at the coils that are at about the 3:00 O'clock position, you can see a break in the coil.
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