Expert Heat Pump Repair in the Inland Empire
Heat pumps work differently than a standard AC since they handle both heating and cooling for your home, which means there's more that can go wrong, and the symptoms aren't always obvious. Sanborn's technicians are trained on heat pump systems specifically, not just general AC repair, which matters when the issue is something like a stuck reversing valve instead of a simple refrigerant leak.
What Our Heat Pump Repair Covers
We diagnose the reversing valve that switches the system between heating and cooling mode, check the defrost cycle and control board, inspect the compressor, and test refrigerant charge. We also check electrical connections and the outdoor unit's fan motor, since heat pumps run almost constantly throughout the year and that extra runtime adds wear that a seasonal AC unit never experiences.
Have questions? We're here to help.
Signs Your Heat Pump Needs Repair
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It won't switch between heating and cooling mode.
This usually points to a stuck or failing reversing valve, which needs attention since it affects the system's basic function.
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Ice is building up on the outdoor unit during winter.
A small amount of frost is normal and clears during the defrost cycle. Heavy ice buildup that doesn't clear means the defrost control or a sensor has failed.
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The system runs constantly without ever satisfying the thermostat.
This often points to low refrigerant or a compressor that's losing capacity.
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Your bills have gone up noticeably with no change in habits.
Since heat pumps run for both seasons, a small efficiency loss shows up on the bill faster than it would with a system that only runs part of the year.