Observe green LED indicator on gas control. Status flash codes are displayed with a three second pause before repeating. Check and repair the system as noted in the troubleshooting table below.
|None (LED not on or flashing)
|Indicates control is off. Main and pilot burner are off.
|Gas valve is functioning normally. Gas valve is not powered. Light pilot.
|One flash every four seconds
|Not an error. Indicates pilot is lit and main burner is off.
|Gas valve is powered and waiting for the set point knob to be turned to a water temperature setting. If the set point knob is at desired setting, the thermostat is satisfied.
|One flash every second
|Not an error. Indicates main valve is open and main
burner is lit.
|Thermostat is calling for heat. Water heater operating normally and is in heat cycle.
|Not an error. Indicates that the control is in shutdown mode.
|Set point knob was recently turned to “OFF” position. Wait until LED goes out before attempting to relight.
|Two flashes and three second
|Low thermopile voltage; main burner not lit.
|Loose thermopile connections or weak pilot flame.
|Four flashes and three second
|Temperature cut-out limit reached causing shutdown.
|Excessive temperatures may have been reached. Shut off the control and reduce the water temperature. Thoroughly verify control operation, replace if exceeding setpoint.
|Five flashes and three second
|Electronics, sensor, or gas valve fault detected.
|Control may be wet or damaged. Verify all connections are tight; if problem persists replace the control.