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    Deliveryman's Avatar
    Deliveryman Posts: 1, Reputation: 1
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    #1

    Feb 22, 2010, 08:37 AM
    Relay switch for furnace
    Have electric furnace with heat pump. Replaced thermostat and now the emergency heat will not work. Thought I might have hooked up wrong so I called maker of thermostat and talked with them. They said the wiring was correct. The heat pump works and the blower comes on when emergency heat is on but only cool air blows out, no warm air. Could I have tripped a relay when I replaced the thermostat?
    madcad's Avatar
    madcad Posts: 1, Reputation: 1
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    #2

    Dec 24, 2011, 11:24 AM
    Did you jumper AUX to E on the stat?
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