One day I walked to find the thermostat's GFCI light on and unable to be reset. The in-floor heating was off and had been for months. That original thermostat just randomly failed one day this past summer. It was a GT-2 model which was the model made prior to the FG one I have in there now. The original thermostat was also an Easy heat warm tiles thermostat. The thermostat GFCI appears to trip every few days at the current temperature setting, but if I increase the temperature setting it will trip more often.Īny ideas? I am not sure why it would work perfectly well for 6 years and suddenly I would have a cable issue at the exact same time I change my thermostat. Initially I thought it must be a thermostat issue so I replaced the original FG thermostat with a new one and the same issue has continued. I have also checked the resistance in the sensor cable:ġ2,000 ohms (exactly what it should be according to manufacturer) ![]() I checked the resistance in the heating cable:īlack to white - 38 ohms (exactly what it should be according to manufacturer) I installed a new FG thermostat and the thermostat GFCI has been intermittently tripping the since it was installed. ![]() The original thermostat was a GT-2 and I had no issue with it or GFCI trips prior to the end of life issue. It was installed in 2009 and ran perfectly until 2015 when the thermostat had an end of life issue. I have a GFT 2118 cable kit from warmtiles installed under tile. I have a 240V dedicated circuit installed in my bathroom for in-floor heating.
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