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heater fuse

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Old Oct 29, 2011 | 02:18 PM
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heater fuse

when i replace the 30 amp heater fuse in the dash area and turn the heater on the the fuse glows orange in seconds then blows, where do i start to fix this, maybe at the fan switch, 94 F350 box truck
 
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Old Oct 29, 2011 | 03:17 PM
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ctubutis
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I would start at the heater fan motor; the circuit breaker/fuse blowing is telling you something in that circuit is drawing more power than it should be, and I believe that fan motor is the only thing in that circuit.

Does the motor turn easily by hand? If not, this very well could be your problem....
 
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Old Oct 29, 2011 | 05:48 PM
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White 97 xlt
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Originally Posted by ctubutis
I would start at the heater fan motor; the circuit breaker/fuse blowing is telling you something in that circuit is drawing more power than it should be, and I believe that fan motor is the only thing in that circuit.

Does the motor turn easily by hand? If not, this very well could be your problem....

I'll second that!!!!
 
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Old Oct 29, 2011 | 08:36 PM
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i can't get at it until monday but that's a good start i was thinking the switch
 
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Old Oct 31, 2011 | 02:19 PM
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the blower motor was totally seized thanks for the suggestion on where to start looking guys
 
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Old Oct 31, 2011 | 03:00 PM
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Thanks for the update, glad you got it figured out.
 
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