when pushing red button on water heater makes noise

If the breaker is a GFCI, replace with a standard breaker and attempt to heat the floor.Confirm the supply breaker is a standard breaker (not GFCI).At the breaker panel, turn OFF the circuit breaker controlling the floor heating circuit.If the issues are not resolved, or if any assistance is required, we recommend that the electrician and homeowner call nVent NUHEAT Tech Support when the electrician is on site so that we can ensure all trouble shooting steps have been conducted properly and explain any next steps. Please read and follow the steps noted below.ī. If the thermostat displays the error message and RED light as soon as the power is turned back ON, contact an electrician and have them come to the site to perform steps 2 to 6.Ī.If the thermostat resets and the floor heats up, continue to operate the system normally.Leave the breaker OFF for 10 seconds, then turn the breaker back ON. If the error message and RED light do not disappear, turn OFF the circuit breaker controlling the floor heating circuit.If the thermostat trips the GFCI as soon as the heating indicators are displayed on the screen, please call your electrician and proceed to electrician troubleshooting (Step 2).If the floor heats and the error message and RED light do not reappear, continue to operate the system normally.If the error message and RED light disappear, set the thermostat to 'Heat' and allow the floor to heat up.At the thermostat location, press the reset button located on the bottom right side of the thermostat faceplate once to see if the error message and RED light will reset (click here to open the Operating Manual for reference).

When pushing red button on water heater makes noise