Before startup
Confirm the pool circulation system is operating, valves are positioned correctly, the filter is clean, water chemistry is balanced, and the heater has adequate flow.

Pool Heater Experts · Mazgan Inc.
A seasonal startup verifies more than whether the heater lights. It checks conditions which cause nuisance lockouts, overheating, poor combustion, water leaks, and early component failure.

Technical guidance
Confirm the pool circulation system is operating, valves are positioned correctly, the filter is clean, water chemistry is balanced, and the heater has adequate flow.
The service includes visible checks for debris, corrosion, damaged wiring, water leaks, venting problems, burner contamination, nesting, and signs of overheating.
Ignition sequence, flame stability, water pressure response, temperature rise, safety controls, and shutdown are reviewed. Gas and combustion testing is completed where required.
If the burner or heat exchanger needs deep cleaning, the heater is disassembled as required. Cleaning is treated as corrective service, not a quick exterior wipe.
Common questions
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