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Heat pump not working
A heat pump that won't heat or cool usually points to a few common fixes.
Before anything — check these
If any of these are true, stop and get professional help now:
- No heat in freezing weather
- Burning smell
- Frost buildup
Safe checks you can do
Tick what you've checked. Only do homeowner-safe actions.
Likely causes
| Cause | Likelihood | Severity | Cost |
|---|---|---|---|
| Thermostat settings | high | Low | $0–$100 |
| Defrost cycle or frozen coil | medium | Medium | $100–$500 |
| Refrigerant issue | medium | Medium | $250–$1,500 |
| Compressor or reversing valve | low | High | $1,500–$3,500 |
Recommended next action
If the thermostat is fine but it's not working, or you see heavy ice, call an HVAC technician.
Plan the fix
Once you know roughly what's wrong, size the job and get a cost range:
HVAC System Planner