Jandy High Fault Error Cycle


New member
Nov 21, 2020
Dallas, TX
I'm getting a High Fault Error on my Jandy Heater. It keeps cycling on and off and continues to say HIGH FAULT Limit and the the heater turns off, waits five minutes and does the same thing.

Any help would be appreciated.


Gold Supporter
TFP Guide
Jul 21, 2013
Northern NJ
Welcome to TFP.

That is often caused by low water flow through your heater.

Check your filter pressure. What type of filter do you have? When did you last clean or backwash your filter? What type of pump do you have? If you have a VS pump what speed is it running at?

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