Instructions / Assembly

41
Troubleshooting Tips
Save time and money! Review the charts on the following pages first and you may not need to call for service.
Problem Possible Causes What To Do
Display not on
No power to the unit
Check the breaker to the unit, the on/off switch, and the fuse
on the ignition control board.
Harness from control board disconnected Make sure that the wire harness to J4 on the ignition control
board is still connected.
Blower does not run No power to blower motor Verify power to the control board and that all harnesses to
the blower are properly installed. Make sure that there is no
damage the harnesses or connectors.
Unable to light
the main burner
Air in gas line Let the unit cycle at least 3 times to remove air from the
gas line. If the unit does not try to light, contact a qualified
service technician to purge the air from the gas line.
Manual gas shut-off
valve(s) not open
Check to make sure that all manual shut-off valves between
the unit and the gas line are open.
Blocked inlet or exhaust vent pipe Contact a qualified service technician to evaluate vent pipes
for a blockage.
Pressure switch
Make sure the pressure switch hoses are not "kinked" or
disconnected.
Blocked inlet or outlet vent systems will cause pressure
switch to shut off the unit. Contact a qualified service
technician to evaluate the vent system.
Wire connection not fully secured Contact a qualified service technician to confirm wire
connections.
Status: Standby
StatusSettings
warm hot very hot
Disable
120°
Service
If one of the health indicators is blinking on the home screen or
the service icon is blinking there is an issue with the operation
of your water heater. Pressing the service icon will allow you
to look at Current Alarms (and Alerts), Alarm History, and Unit
Health screens for issues that need attention. Pressing the
blinking health indicator will show the health screen.
Status: Standby
StatusSettings
warm hot very hot
Disable
120°
Service
Status: Standby
StatusSettings
warm hot very hot
Disable
120°
Service
BEFORE YOU CALL FOR SERVICE…