Heat pump not heating your home? Learn common causes, repair costs, and when to replace.
Heat pumps extract heat from outdoor air. When yours is not heating, it could be settings or a mechanical problem.
Ensure the thermostat is set to HEAT mode with temperature above current room temp.
Heat pumps periodically defrost the outdoor coil. Cool air during this time is normal.
Low levels reduce heating capacity significantly.
The reversing valve switches between heating and cooling. If it fails, the system stays in cooling mode.
Heavy ice buildup or fan motor problems reduce heating performance.
| Repair | Cost Range |
|---|---|
| Thermostat replacement | $75 – $300 |
| Refrigerant recharge + leak repair | $300 – $1,500 |
| Reversing valve replacement | $500 – $1,500 |
| Defrost control board | $200 – $600 |
Heat pumps last 12–15 years. If yours is over 10 and facing a major repair, a new efficient heat pump provides better long-term value.
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