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Is your heat pump blowing cold air when it should be heating? Strange noises keeping you up at night? Rising energy bills making you sweat more than your broken system? Heat pump problems strike when you least expect them, leaving you scrambling for solutions. The right heat pump repair can restore comfort, slash energy costs, and extend your system’s lifespan. In this guide, we’ll cover common issues, repair costs, and when to call a pro. For DIY maintenance tips, check our guide on heater maintenance.
Key Takeaways
- Heat pumps require specialized expertise—improper repairs can worsen problems.
- Strange noises, poor airflow, or ice buildup signal urgent repairs.
- Annual maintenance prevents 80% of common breakdowns.
- Compare heat pumps vs. hydronic boilers if considering replacement.
Common Heat Pump Problems and Solutions
1. Heat Pump Not Heating or Cooling
A failing compressor, refrigerant leaks, or thermostat issues often cause temperature problems. Low refrigerant levels reduce efficiency by up to 30%, forcing the system to work harder. If your heat pump struggles to maintain temperature, check:
- Thermostat settings (ensure it’s not in “fan only” mode)
- Air filters (clogged filters restrict airflow)
- Circuit breakers (tripped breakers cut power)
For refrigerant leaks, always hire a licensed technician—handling refrigerants requires EPA certification.
2. Strange Noises (Grinding, Squealing, Banging)
Unusual sounds often indicate mechanical failures:
| Noise | Likely Cause | Repair Cost Range |
|---|---|---|
| Grinding | Failing motor bearings | $200–$600 |
| Squealing | Loose or worn belts | $150–$400 |
| Banging | Broken fan blades | $300–$800 |
3. Ice Buildup in Winter
Ice on coils blocks airflow, reducing heating capacity. Causes include:
- Faulty defrost control board (replacement: $250–$600)
- Low refrigerant ($200–$1,500 depending on leak severity)
- Dirty coils (clean with a soft brush—avoid sharp tools)
When to DIY vs. Call a Pro
DIY fixes (if comfortable):
- Replacing air filters
- Cleaning outdoor coils
- Resetting circuit breakers
Call a technician for:
- Refrigerant leaks (requires specialized equipment)
- Electrical repairs (risk of shock or further damage)
- Compressor issues (costly if misdiagnosed)
FAQs
How much does heat pump repair cost?
Repairs range from $150 for minor fixes to $2,000+ for compressor replacements. ENERGY STAR recommends annual maintenance to avoid costly breakdowns.
Can I repair a heat pump myself?
Basic maintenance like filter changes is safe, but electrical or refrigerant work requires EPA certification. Incorrect repairs void warranties.
How long do heat pumps last?
10–15 years with proper care. If repairs exceed 50% of replacement cost, consider upgrading (compare heat pumps vs. water heaters).
Final Thoughts
A malfunctioning heat pump disrupts comfort and spikes energy bills. While some issues are DIY-friendly, complex repairs demand professional expertise. Schedule annual tune-ups to maximize efficiency and lifespan. For emergencies, prioritize HVAC companies with 24/7 service and manufacturer certifications like NATE.
