Reversing valve faults
The part that flips a heat pump between cooling and heating, and the usual reason a system does one but not the other.
A heat pump that cools fine but will not heat is usually a specific, fixable fault — not a dead system.
Heat pumps are the most common system in this part of Florida, and they fail differently from a straight air conditioner. We diagnose and repair reversing valves, defrost controls, auxiliary heat strips, compressors and controls within about 60 miles of Old Town, 24 hours a day, with no after-hours fee on emergency jobs.
Overview
A heat pump runs your air conditioning in summer and reverses to provide heat in winter, so it has parts a cooling-only system does not: a reversing valve, a defrost board and sensor, and auxiliary heat strips for the coldest mornings. Those parts cause the classic complaints we get every winter — cools but will not heat, runs constantly on a cold morning, or blows cool air in heat mode. We diagnose which stage of the system actually failed instead of condemning the whole unit.
When To Call
What's Included
The part that flips a heat pump between cooling and heating, and the usual reason a system does one but not the other.
Defrost boards, sensors and cycles that keep the outdoor coil from icing over on a cold, damp North Central Florida morning.
Heat strips, sequencers and controls — including why they are running when they should not be and driving the bill up.
Our Process
Cooling, heating, or the changeover between them — each points at a different part of the system.
Reversing valve, defrost control, auxiliary heat and compressor are tested individually.
Findings and cost before work, with the $95 diagnostic credited toward the repair.
We confirm the system performs in heating and cooling before leaving.
Pricing & Policies
These are our published policies. You get the price for your specific job before any work begins.
Why All About Air and Heat
Service Area
We serve homes and businesses within about 60 miles of Old Town, across Dixie, Levy, Gilchrist, Lafayette and Taylor counties.
Questions
Most often a stuck reversing valve, a failed reversing valve solenoid, or a defrost control fault. It can also be auxiliary heat not engaging. All are diagnosable on a standard service call.
Some frost and a steaming defrost cycle are normal. A coil that stays encased in ice and never clears is not — that is a defrost system fault.
Usually the auxiliary heat strips running far more than they should, because the heat pump is not keeping up, the charge is low, or a control is calling for backup heat unnecessarily.
Yes. Our winters are short and mild, which is exactly the condition heat pumps are efficient in, and the same equipment provides the cooling that matters most here.
Related Services
One system, both seasons. For this climate, a properly sized heat pump is usually the sensible choice.
Learn moreHeating and cooling are one system. We diagnose all of it, not just the part that is easiest to reach.
Learn moreThe cheapest repair is the one that never happens. Maintenance is what keeps a Florida system out of trouble in August.
Learn more24/7 service across a 60-mile radius of Old Town, with no after-hours fees on emergency jobs.