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

    Feb 5, 2009, 09:21 AM
    Carrier keeps blowing 5 amp fuse in heat setting
    Crappier... er... Carrier Unit has blown 2 fuses in two days on heat setting. Fuse is in main blower housing. Is this a short? Any ideas?

    Thanks,
    Frustrated and Freezing...
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #2

    Feb 5, 2009, 09:24 AM

    If capable, remove control wire from the heat contactor, contactor coil windings may be shorted.
    Or
    Thermostat control wire may be barely shorting.
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
    Ultra Member
    		  
    #3

    Feb 6, 2009, 04:05 PM
    If this is a heat pump system, try the emergency mode short-term. If the problem doesn't re-surface, focus your attention on finding a shorted control circuit or low-voltage component at the outdoor unit (as previously suggested).
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