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Pool & spa

Jandy error codes

Jandy JXi heater messages and ignition LED codes, from Jandy's own manual. Also covers Zodiac.

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Jandy pool heater codes (8)

CHECK FLOWCheck flow
FAULT - HIGH LIMITHigh limit fault
FAULT - HIGH FLUE TEMPERATUREHigh flue temperature
FAULT - CHECK IGN CONTROLCheck ignition control
SHORTED H2O SENSORWater sensor fault
FAULT - PUMPPump status (Maintain Temp)
3 flashesIgnition lockout (LED)
2 flashesFlame with no call for heat (LED)

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Error code meanings come from manufacturer manuals and support pages, but codes can differ by model and year. Always confirm with your owner's manual or the label inside your unit. Our information and AI helper are for general guidance only and are not a substitute for a licensed technician. Gas, refrigerant, combustion and line-voltage work must be done by a qualified professional. In an emergency, call 911.

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