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Heat pump not running

The outside unit for my heat pump does not turn on...either on heat or AC. The air handler works fine. I've checked the breaker in the main electrical panel, and i did a continuity test on the fuses in the outside box next to the unit. Do you have any other suggestions?

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Depending on the age of the unit it could be several things, does it have a circuit board? Contactor could be bad, freon leak if it has a low pressure switch, burnt wires, connections, etc. Do a complete visual and check for 24 volts, does the indoor unit run? Transformer may be bad.... No indoor unit - no outdoor unit, most of the time the outdoor unit gets its 24 vac power from the indoor unit which runs them both, look for fuses (like car fuses)..

Posted on Apr 26, 2008

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