Why is my pool heater not heating?
Heater problems can come from low flow, dirty filters, control settings, sensor symptoms, equipment condition, or heater hardware concerns. The first step is reviewing flow and visible operating symptoms.
Why does my pool heater shut off?
Possible causes include low flow, dirty filters, control issues, sensor problems, or heater component failure. Flow and filter checks are a smart first step.
Can low flow or a dirty filter stop a heater from firing?
Yes. Many heater symptoms start with restricted flow or high filter pressure. Cleaning filters, checking baskets, and confirming circulation can be part of heater diagnostics.
Do spa heating issues use the same equipment?
Attached spas often use the pool heater and shared equipment, so valve position, flow, controls, and heater operation all matter.
What information should I send before a heater visit?
Send photos of the heater, controls, equipment pad, filter pressure if visible, error messages, and a short note about when the heater turns on or shuts off. That helps narrow down whether the issue starts with flow, settings, controls, or heater behavior.
What happens if the heater needs further service planning?
If the issue points beyond routine diagnostics, SoN's Pool & Spa can explain what was observed and what the next move should be. That may include follow-up planning, parts research, or referral to the right specialized service.
