Heat Pump Repair in Zionsville, IN

Heat pumps are common in the newer Zionsville subdivisions and estate developments, often as part of a dual-fuel or geothermal setup. They are also more complex than a straight furnace or air conditioner, with a reversing valve, defrost logic, and a refrigerant cycle that runs year round. When one fails, the symptom is rarely obvious, and a misdiagnosis is expensive. We work on heat pump specific faults directly, not by treating it like a furnace.

• A reversing valve stuck in heating or cooling, so the system runs the wrong mode.
• Defrost controls that leave the outdoor unit iced over in winter.
• Refrigerant leaks and charge problems specific to the heat pump cycle.
• An outdoor unit that will not start, or that runs but moves no heat.
• Dual-fuel changeover that never hands off to the backup furnace.

A heat pump moves heat in both directions, so a fault can look like a heating problem in January and a cooling problem in July when it is really the same valve or control. We test the refrigerant cycle, the reversing valve, and the defrost board as a system, which is the only way to land on the real cause instead of swapping parts. On geothermal systems we check the loop side as well.

If the unit is beyond economical repair, heat pump installation covers right-sized replacement and the incentives that apply.

My heat pump is iced over. Is that a problem?

A little frost that clears on a defrost cycle is normal. A unit that stays encased in ice has a defrost control or sensor fault, and that is a repair we make directly.

The system is blowing cold when it should be heating. Why?

Often a stuck reversing valve or a failed changeover on a dual-fuel system. We test the valve and the controls rather than guessing, because the symptom can mislead.

Can you repair a geothermal heat pump?

Yes. Geothermal systems are present in some Zionsville estate developments, and we diagnose both the heat pump and the loop side.

Should I repair or replace an aging heat pump?

We give you the honest cost comparison, including remaining life, so you are not pouring repair money into a unit near the end.