Jandy Standard Check Valve, 2" 21/2" 180 Degree Check

Jandy Check Flow Set. 7235 180Dgree 11/2Inch to 2Inch Check Valve, One Way It senses the pressure of water passing through the heater, and shuts off power if it detects an abnormally low or high pressure. My Jandy pool heater is showing 'pump fault' and is working, but intermitently

If the problem persists, check if the pump is operating correctly A malfunctioning pump can also cause the 'Check Flow' fault.

Jandy Check Valves Check Valve

I had something similar come up and it ended up being a broken check valve between the filter and the heater (part of a solar loop, old style check valve that didn't have a clear cover) From https://www.justanswer.com/ythiJustAnswer Customer from San Antonio, TX: Our Jandy pro series jxi heater says check flow valve and isnt heating.it was i. My new pool heater keeps saying to "check flow set"

Jandy 7305 Spring Check Valve 2" Internal 21/2" External Ports. Check flow on Jandy heater is a safety feature designed to protect the system from over-heating I had something similar come up and it ended up being a broken check valve between the filter and the heater (part of a solar loop, old style check valve that didn't have a clear cover)

Jandy Check Valve, 1 1/2" PVC (Jandy Pool Products 7235) Sun Source. Once ignited, it should continue running automatically as needed to maintain set temperature levels in your pool. So although the pressure was fine coming out of the filter, it was too low at the heater itself.