Blower motor quit
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Elder User
Joined: Jul 2004
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From: Leesburg , Fl.
Blower motor quit
The blower motor in my '96 F350 quit working , no noises at all . It first would not come on right away ( but would after a few miles ) and now refuses to work at all . There is power to the bottom pin in the plug for the motor when the heater is turned on . So before I spend the money for a new motor , can I test this one ? Is the bottom pin power and the top pin ground ?
Junior User
Joined: Jan 2005
Posts: 98
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From: Athens, Alabama
Considering that you have already checked the fuse in the main fuse panel...I don't think the problem is going to be the blower motor resistor. Reason being the resistor pack offers a different resistor for each fan setting with each resistor providing appropriate resistance based on the switch setting. Most resistor problems are made evident by the motor only working at full speed. This is true because there is no resistor for that switch setting. It allows full power to the motor. Your problem is most likely the selector switch allowing you to choose between a/c and heater. I say this because you said you have no power to the motor itself. it would not be the speed control switch because that switch always rests at one position meaning there would always be at least one speed setting working. I would recommend a selector swtich check and replacement followed by replacing the motor itself.
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Elder User
Joined: Jul 2004
Posts: 849
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From: Leesburg , Fl.
Originally Posted by 302V8
Considering that you have already checked the fuse in the main fuse panel...I don't think the problem is going to be the blower motor resistor. Reason being the resistor pack offers a different resistor for each fan setting with each resistor providing appropriate resistance based on the switch setting. Most resistor problems are made evident by the motor only working at full speed. This is true because there is no resistor for that switch setting. It allows full power to the motor. Your problem is most likely the selector switch allowing you to choose between a/c and heater. I say this because you said you have no power to the motor itself. it would not be the speed control switch because that switch always rests at one position meaning there would always be at least one speed setting working. I would recommend a selector swtich check and replacement followed by replacing the motor itself.
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