Pool Heater Repair Cost by Part Guide

Repair visit priced by failed part: thermostat, ignition, board, exchanger, compressor.

Orange County, CA · Updated 2026 · Costs shown as ranges — your quote will vary by firm and scope

Reading this guide: every figure below is a range from published 2026 pricing data — not a quote. Two frames are named apart and never blended: Frame A (the Angi frame, by heater type) and Frame B (the parts-and-labor trade frame). The frames count the same repair visit differently, and that difference is named on every page. Always get 3 written quotes.

Part readings, priced apart by frame

Failed part rowFrame B readingFrame A reading
Thermostat row$150-$300 totalinside the $166-$799 overall band
Ignition and flame-sensing row$200-$500 total, gas unitsinside the $150-$750 natural gas band
Control board and electrical row$300-$700 totalinside the $200-$1,200 electric band
Pressure switch rowno build-up row by that nameinside the $166-$799 overall band
Heat exchanger row$600-$1,200 totalinside the $166-$799 overall band
Blower and venting rowno build-up row by that nameinside the $166-$799 overall band
Compressor row, heat-pump units$800-$1,500 totalno by-type row by that name

Each reading is one frame counting of one failed part. Rows absent in one frame are printed as absent, never filled from the other.

Thermostat, ignition, and control board rows, priced apart

RowFrame2026 reading
Thermostat row, 0.5-1 labor hourFrame B$50-$200 part, $150-$300 total
Ignition system row, gas units, 1-2 labor hoursFrame B$100-$300 part, $200-$500 total
Control board row, 1-2 labor hoursFrame B$200-$500 part, $300-$700 total

The Frame B rows are repair-visit rows -- one failed part on one visit -- never an installation hub row.

The heat exchanger and compressor rows, priced apart

RowFrame2026 reading
Heat exchanger row, 2-3 labor hoursFrame B$300-$800 part, $600-$1,200 total
Heat exchanger readsecond trade read$1,200-$2,000
Compressor row, heat-pump units, 2-4 labor hoursFrame B$400-$1,000 part, $800-$1,500 total
Diagnostic visit rowFrame B$125-$195
Repairs typically rowFrame B$160-$802, average around $479
Labor row, per hourFrame A$80-$120
Solar repair band rowFrame A$50-$400
Parts rowFrame A$20-$600

The heat exchanger stands counted two ways here. The frames count the same job on different bases -- flat by-type bands in Frame A (repairs overall at $166-$799, an average about $477) against a part-plus-labor build-up in Frame B (a thermostat at $150-$300 in total, a compressor at $800-$1,500 in total, repairs typically at $160-$802 with an average around $479). The heat exchanger line is counted two ways across the trade reads -- $600-$1,200 in the Frame B build-up against $1,200-$2,000 in a second trade read reported in a repair-vs-replace trade article -- named as frame differences on every page, never averaged.

The neighbours named apart

Type readings price apart on the companion guide. Named apart, never a row here: the standing pool heater replace vs repair guide (its own field -- this cluster carries no repair-vs-replacement guide of its own), the pool heater installation hub (a new heater going in, its own field), the built pool pump repair cluster (the pump circuit, not the heater), and whole-pool renovation tickets, each in its own lane.

Reading a by-part quote

Cost guide, not advice: the ranges below are compiled from published 2026 pricing data. Your price will vary with the failed part, the heater type, and the firm as quoted. This guide does not endorse, rate, or recommend any firm or brand. Ranges only, not quotes.

Frequently asked questions

What does pool heater repair cost by part, as reported?

Frame B prices the thermostat at $150 to $300, the ignition repair at $200 to $500, and the control board at $300 to $700, each in total. Frame A prices the visit inside its $166 to $799 overall band, with solar repairs at $50 to $400.

What do the heat exchanger rows print at, as reported?

Frame B prints the heat exchanger at $600 to $1,200 in total. A second trade read prints $1,200 to $2,000 -- counted two ways.

What does the compressor row print at, as reported?

Frame B prints the compressor on heat-pump units at $800 to $1,500 in total. Frame A prints no row by that name.

What do the pressure switch and blower rows print at, as reported?

Neither frame prints a build-up row by those names: each stands inside the Frame A band at $166 to $799, printed as absent.

Is a part row the same purchase as a new heater on the installation hub?

No. Each row prices one failed part in one repair visit. The installation hub, the standing decision guide, and the pool pump repair cluster sit in their own lanes.

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