Atwood Water Heater
Trying to help someone with an electronic ignition Atwood water heater. Will not light. 8 VDC to gas valve with valve disconnected. Is that the correct voltage. Should it be 12 VDC to the valve...
Forum Discussion
Follow the DC voltage......find where the 'resistance' is dropping the voltage
To switch---12VDC
To circuit board.....12VDC (Brown or Orange wire)
To T-stat then back to circuit board....12VDC (Brown wire)
To ECO then to Gas valve.....12VDC (Red wire)
Loose, dirty, corroded connections........high resistance....stops DC easily
NOTE:
DC Voltage to gas valve only happens for 6-8 seconds while spark electrode is firing.
Circuit board drops the DC to gas valve after that unless flame lights off and proves it lit
To switch---12VDC
To circuit board.....12VDC (Brown or Orange wire)
To T-stat then back to circuit board....12VDC (Brown wire)
To ECO then to Gas valve.....12VDC (Red wire)
Loose, dirty, corroded connections........high resistance....stops DC easily
NOTE:
DC Voltage to gas valve only happens for 6-8 seconds while spark electrode is firing.
Circuit board drops the DC to gas valve after that unless flame lights off and proves it lit
