Troubleshooting: Heat Pump Not Heating in Cold Weather

Heat Pump Not Heating in Cold Weather

Symptoms

System runs but doesn't produce enough heat during cold temperatures

Solutions

Diagnostic Steps

1. Check Temperature Settings: Ensure your thermostat is set to heat mode
2. Verify Outdoor Unit: Make sure the outdoor unit is clear of snow and ice
3. Check Air Filters: Dirty filters can reduce system performance
4. Inspect Defrost Cycle: Ensure the defrost cycle is working properly
5. Check Refrigerant Levels: Low refrigerant can cause heating issues

Common Solutions

• Clean Outdoor Unit: Remove snow, ice, and debris from around the unit
• Replace Air Filters: Install new filters every 1-3 months
• Check Thermostat Settings: Ensure proper temperature and mode settings
• Professional Inspection: May need refrigerant charge adjustment
• Consider Backup Heat: Some systems have backup heating elements

When to Call a Professional

• System won't start or runs continuously
• Unusual noises or vibrations
• Ice buildup on outdoor unit
• Refrigerant leaks
• Electrical issues