Blower or no Blower
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Joined: Sep 2005
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Blower or no Blower
My 2000 F250 heater blower doesn't work properly. Sometimes when you start the truck up the blower works at any speed and there will be other times it would not work at all. I checked the fuse and the connections. Any idea why this would happen?
Senior User
Joined: Dec 2004
Posts: 441
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From: Cave Springs, AR
I'm sorry, I can't help but I can say I had a '99 E350 and the heater motor started working intermittently about a year ago, then after about a month it died all together, then I sold it. It had 130k and was getting tired anyway. Now I got a truck so 
Anyway, I'd check your wiring, and consider replacing the motor. If it's intermittent it can't be a fuse.
-Jay
Anyway, I'd check your wiring, and consider replacing the motor. If it's intermittent it can't be a fuse.
-Jay
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
It sounds like a bad connection or the motor itself. Next time it doesn't work turn the sw to hi and go under the hood and tap on the blower motor see if it starts going if not wiggle all the wires to the motor and blower resistor. If the motor starts when tapping it you prob need a new one.
Dick
Dick
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
First of all no one told you to replace it so you took a chance. You said you had the speeds some times and then not. That indicates blower resistor is ok. Thats why I didn't suggest replacing it so you don't go wasting money.
Connections or the motor itself. Did you tap the motor when its not working to see if it starts? There is also a blower motor relay that you could swap out.
Dick
Connections or the motor itself. Did you tap the motor when its not working to see if it starts? There is also a blower motor relay that you could swap out.
Dick
Last edited by 99f350sd; Dec 30, 2005 at 09:44 AM.
New User
Joined: Sep 2004
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My truck started doing this also and wondering where the blower relay is. also have not tried tapping the motor but sure will next time this happens
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Post Fiend
Joined: Jul 2005
Posts: 6,127
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9 chance out of 10, blower motor worn out.
Replace the motor, ideally with the squirrel cage all at once.
partsguyed.com for good prices, get both at once as an assembly as the cage tend to break if you move it from motor to motor.
Replace the motor, ideally with the squirrel cage all at once.
partsguyed.com for good prices, get both at once as an assembly as the cage tend to break if you move it from motor to motor.
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Cargo Master
Joined: Dec 2003
Posts: 2,022
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From: Redford, Mi.
I just had an almost similar problem, I just had high on the blower motor. Tried all kinds of stuff, new switches back checking wires, ended up being the connection on the resistor. Took the wires cleaned with electrical cleaner. Took the old resistor block and ran it in and out of the wire harness a bunch of times, cleaned again with electrical cleaner and everything worked. Were any of the spades on the old resistor rusty, mine were and that was the problem.
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