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    jbowl35f's Avatar
    jbowl35f Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Mar 14, 2007, 07:53 PM
    Heat Pump Thermostat
    I have a Heat Pump by Unitary Products, Model F2FP036N06B with a White-Rodgers thermostat, Type No. 1F89-11. The 5 amp fuse controlling the thermostat has blown three times in the last 24 hours. After replacing the fuse, everything seems to work normally for a few hours before it blows another fuse. Is this problem likely to be the thermostat or some more serious problem?

    Any help will be appreciated.

    jbowl35f
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Mar 15, 2007, 02:44 AM
    I do not think it is the thermostat. It sounds like you have a intermittent short. I would check out all low voltage wires to see if they are shorting including the thermostat wiring. You can also check the wires in the unit for shorts also.
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