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Old 05-06-2012, 11:22 PM   #16
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ac keeps blowing the 5 amp fuse


It is the blower motor. check AMP while it is running....it probably getting higher and higher...

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Old 05-06-2012, 11:25 PM   #17
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ac keeps blowing the 5 amp fuse


I do not think the blower motor is the problem....
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Old 05-06-2012, 11:31 PM   #18
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ac keeps blowing the 5 amp fuse


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Originally Posted by clocert View Post
It is the blower motor. check AMP while it is running....it probably getting higher and higher...
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Old 05-07-2012, 05:19 AM   #19
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ac keeps blowing the 5 amp fuse


The 5 amp fuse is on the low voltage side, so its not the blower motor causing it to blow.

Is this a heat pump, or straight A/C.
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Old 05-07-2012, 06:11 PM   #20
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ac keeps blowing the 5 amp fuse


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Originally Posted by beenthere View Post
The 5 amp fuse is on the low voltage side, so its not the blower motor causing it to blow.

Is this a heat pump, or straight A/C.
this is a straight ac
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Old 05-07-2012, 06:14 PM   #21
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ac keeps blowing the 5 amp fuse


Good chance the contactor coil is going bad.
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Old 05-07-2012, 06:22 PM   #22
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ac keeps blowing the 5 amp fuse


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Originally Posted by beenthere View Post
Good chance the contactor coil is going bad.

Yup yup. To further this notion, with the breaker off to the inside furnace as well as power off at the breaker for the outside condensing unit, remove the two low voltage control wires from the contactor and tape them off. Can't have those wires live touching anything or the fuse will blow.

Install a new fuse. Flip the power back on to both units and turn the stat onto cool and drop the temp on the stat so it's calling through those low voltage wires to the condenser. Those wires, not being connected to the contactor and individually taped off and not having a chance of being a problem for the fuse, should not allow the fuse to blow.

If you do this and your fuse stays okay than replace the contactor that the low voltage wires connect to inside of the condensing unit. Remember, always turn all power off by way of breaker before and during any work.

* "Only you can prevent 'house' fires." ~ Smokey.

*ha! (to jb64)

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