Confirm the controls
Check the desired temperature and operating mode. Give the heater and pool time to respond to a changed setting.
Tropicool Answers · St. Augustine, FL
Pool Heater Not Heating
A pool heater may fail to start, shut down early or run without raising the water temperature as expected.
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Three useful checks
Record any error code
Write down the exact message or code and the heater model. Avoid clearing it repeatedly before speaking with a technician.
Notice water flow
Note whether the pool pump is running and whether the heater starts and stops. Water flow can affect heater operation.
When to stop and call
If the heater repeatedly trips a breaker, stop resetting it and schedule service.
Tropicool Answers
Frequently asked questions
Why does my pool heater shut off before the pool is warm?
Flow conditions, controls, safety devices or heating components may be involved. A diagnosis identifies the cause.
Do you install replacement pool heaters?
Yes. Tropicool can discuss replacement and installation based on the existing equipment and pool use.
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