Pool heat pump being serviced beside a Long Island inground pool

Pool Heat Pump Service

Pool Heat Pump Repair on Long Island

Pool open but the heater isn't? We service pool heat pumps with real HVAC techs, not part-swappers. Hayward, Pentair, AquaCal, Raypak. Suffolk County. Text us first.

Last updated: May 2026

What We Fix


Common Pool Heat Pump Problems We Repair

The faults we see most often at pool opening and through the summer across Suffolk County.

Water Flow / Pressure Switch Faults

The unit reads no water moving through the heat exchanger and locks out. Common at pool opening when the pump or plumbing is slightly different than last season. Usually a sensor or wiring fix, not the unit.

Refrigerant Leaks

Refrigerant can drift over winter when the unit sits idle. Low charge means weak or no heating. We find the leak, repair, evacuate, and recharge to manufacturer spec. EPA-certified handling.

Capacitor and Contactor Failures

The compressor or fan won't start. Fastest, cheapest pool heat pump repair we do. Usually back running same visit.

Freeze Faults at Startup

Cold Long Island spring water and cool nights can trigger freeze-protection lockouts even when the unit is fine. Sometimes it's a sensor, sometimes it's a calibration problem on the control board.

Control Board and Sensor Issues

Modern pool heat pumps have a half-dozen sensors feeding a control board. One bad reading can lock the whole system out. We diagnose with manufacturer service tools, not part-swap roulette.

Heat Exchanger Fouling

Scale, calcium, or chemistry imbalance can foul the titanium heat exchanger and choke heat transfer. Unit runs, water doesn't warm. Sometimes cleanable, sometimes a replacement decision.

Why an HVAC Tech


A Pool Heat Pump Is a Heat Pump

A pool heat pump and the heat pump that heats your house are the same machine with one piece swapped. The home unit moves heat into your air through a coil. The pool unit moves heat into your pool water through a titanium heat exchanger. Compressor, refrigerant circuit, controls, sensors, and diagnostics are essentially the same.

That matters because most pool service companies don't have a refrigerant license, don't carry manufacturer service tools, and don't do board-level diagnostics. When a pool heat pump goes down they typically call the manufacturer's service line and wait, or swap parts until something works. We do this work every day on home heat pumps and ductless mini splits. The water-side piece is the small new part, not the hard part.

We service Hayward, Pentair, AquaCal and Raypak pool heat pumps. EPA Section 608 certified for refrigerant handling. Flat-rate quote before any work begins.

Pool heat pump outdoor unit beside an inground pool on Long Island

Pool Opening Season


Most Pool Heat Pump Problems Show Up at Opening

Equipment sits idle all winter, water chemistry changes, sensors drift, refrigerant leaks slowly. The first warm weekend in May is usually when homeowners find out something's wrong. Sooner you call, sooner we get a tech to you, sooner you're swimming.

Want to check the basics first? Our guide to 7 things to check before calling for pool heat pump service walks through error codes, flow problems, and the easy stuff to rule out in fifteen minutes.

Home Heat Pump Repair Too

Pool Heat Pump Repair Across Suffolk County

Patchogue · Medford · East Patchogue · Bellport · Sayville · Blue Point · Holbrook · North Patchogue · Ronkonkoma · Bohemia · Bayport

All major pool heat pump brands. Same techs that service homes. Written quotes before any work begins.

Pool Heat Pump Down?

Text Us and We'll Get a Tech to You.

Reach us at (631) 209-7090 by text or call. We'll ask a few questions about what your system is doing and schedule you the same day or next morning.

Text (631) 209-7090

Text preferred • Hayward, Pentair, AquaCal, Raypak

Common Questions


Pool Heat Pump Repair FAQs

Yes, and honestly we're a better call than most pool service companies for this kind of work. A pool heat pump is a refrigerant-based heat pump with a water-side heat exchanger instead of an air coil. Same compressor, same refrigerant circuit, same diagnostic process our techs run every day on home heat pumps and mini splits. The water-side piece, the pressure switch, the flow sensor, those are the small new pieces. Manufacturer service tools, EPA Section 608 certification, charge recovery and recharge, leak detection, board-level diagnostics, that's all standard HVAC tech work.

At pool opening on Long Island, the most common faults we see are water flow / pressure switch failures (the unit thinks there's no water moving through it), refrigerant leaks that developed over winter when the unit sat idle, capacitor failures on the fan or compressor, and freeze-fault lockouts from cold spring water. Most of these are one-visit repairs. We diagnose with manufacturer service tools so we're not guessing at parts.

Yes. We service all four major Long Island pool heat pump brands: Hayward, Pentair, AquaCal, and Raypak. Each brand has its own quirks (Hayward's board diagnostic codes, Pentair's communication protocol, AquaCal's titanium heat exchanger care, Raypak's combustion-free designs) and our techs handle all of them.

Most pool heat pump repairs run between $250 and $1,200 depending on the failure. Capacitor and contactor swaps are on the low end. Pressure switch, flow switch, and control board replacements are mid-range. Refrigerant leak repair, evacuation, and recharge sits higher because of refrigerant cost. Compressor and heat exchanger replacements are the most expensive and that's where we'll often have a real conversation with you about repair vs replace. We give you a flat-rate quote before any work begins.

Usually one of three things: a refrigerant leak that's dropped the charge below operating spec, a failed reversing valve (rare on pool units but it happens), or a water-side fouling problem on the heat exchanger restricting heat transfer. Less commonly, the system is sized too small for the pool and the ambient conditions you're trying to operate in. A diagnostic visit pins down which one in about an hour.

Most pool heat pumps last 10 to 15 years on Long Island depending on water chemistry and how it was winterized. As a general rule, if the unit is over 10 years old and the repair quote is more than half the replacement cost, replacement usually makes more sense. Newer units are significantly more efficient. We always give you both numbers so you can decide. We install replacements when that's the right call.

We do both, but service is what most homeowners reach out about, especially at pool opening. If your current unit is past its life and you want a replacement quote alongside the diagnostic, just tell us when you call or text. Same techs, same trucks, no separate dispatch.

Same as our HVAC service area: roughly a 10-mile radius from Patchogue covering most of central and southern Suffolk County. Patchogue, Medford, East Patchogue, Bellport, Sayville, Blue Point, Holbrook, Ronkonkoma, Bohemia, Bayport, and the surrounding towns. If you're outside that radius, text us anyway and we'll let you know.