HVAC control sometimes not working - Ford Powerstroke Diesel Forum
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Old 12-28-2013, 07:46 AM
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HVAC control sometimes not working

once and a while the hvac control center on my 2005 larait has the display screen(fancy one) going blank once and a while, other times it will work just fine, i cant control the blower speed, nothing, just totaly dead.

Anyone run into this issue before? im assuming its the unit itself not wiring

Last edited by mebob2001; 12-28-2013 at 07:52 AM.
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Old 12-31-2013, 08:04 PM
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My 05 has been doing the same exact thing for over 2 years now!
Anbody have any suggestions ?

really sucked because I was in Miami for alot of that time n even in winter you need A/C down there.
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Old 12-31-2013, 08:27 PM
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I've got the full electronic temp control w/steering wheel controls

Is it by chance blowing the fuse?

Mine did this about every two months at random, I've searched every wire, could not find a short. Finally I altered my fuse box and cover to accept a mini buss 15A breaker I found at autozone, that was one of the best mods I've done, problem solved
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Old 01-09-2014, 06:14 PM
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When that happens, turn the headlights on for a few seconds, then back off. It'll come right on.
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