Fan Blower Controller
Thread Starter
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Senior User
Joined: Oct 2004
Posts: 244
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From: Seminole, FL
Fan Blower Controller
Hi all,
Been fighting this one for a couple weeks. 2006 F250 PSD FX4 with Auto Temp Control 38k miles so out of warranty.
Ford dealer replaced AC head unit under warranty for the blank display problem a couple months ago.
Now blower started the sticking on high even with head unit turned off.
Took it to dealer after about a week. They said it was the fan controller that costs $90 plus labor but did not have one in stock. After complete failure for a week when I started the truck to leave it started working!?
Now a week later it failed again. It is under hood kind of behind the condenser so one of the mounting screws is a pain to get out.
I read on here there is a bad diode so I took it apart and replaced the only diode on this really simple circuit board. Still did not correct.
Any ideas?
Been fighting this one for a couple weeks. 2006 F250 PSD FX4 with Auto Temp Control 38k miles so out of warranty.
Ford dealer replaced AC head unit under warranty for the blank display problem a couple months ago.
Now blower started the sticking on high even with head unit turned off.
Took it to dealer after about a week. They said it was the fan controller that costs $90 plus labor but did not have one in stock. After complete failure for a week when I started the truck to leave it started working!?
Now a week later it failed again. It is under hood kind of behind the condenser so one of the mounting screws is a pain to get out.
I read on here there is a bad diode so I took it apart and replaced the only diode on this really simple circuit board. Still did not correct.
Any ideas?
Thread Starter
|
Senior User
Joined: Oct 2004
Posts: 244
Likes: 0
From: Seminole, FL
I had got a price from one local dealer of almost $90 for the blower control for EATC on my F250.
After taking the olde one apart and replacing the diode the fan now only blows on high. At least I could turn it off
I stopped by another dealer on the way home from work and he did not have the exact part# but cross referenced it to another one and came up with the identical part. This one was only $52. Man almost half the price as from another dealer.
Anyway, this worked. I believe it was the power transformer (Darlington) that was bad on the old one. I may buy one and replace it to see if it works.
After taking the olde one apart and replacing the diode the fan now only blows on high. At least I could turn it off
I stopped by another dealer on the way home from work and he did not have the exact part# but cross referenced it to another one and came up with the identical part. This one was only $52. Man almost half the price as from another dealer.
Anyway, this worked. I believe it was the power transformer (Darlington) that was bad on the old one. I may buy one and replace it to see if it works.
