Does damper blade move to the full
open position?
Error code #55 on display.
Remove damper from heaterand
jump black &yellow wires of
heater harness. Refer to photo on
this page.
Doesw ater heater begin to
operate?
Check for debris limiting dampe r
rotation. If no debris, re place
damper.
Isthere pilot flame? Error code #62 on display . See
“Pilot Will Not Light”.
Does MainBurner operate? Error code #62 on display . See
“Pilot Lights, No Flame S ignal”
Does burner continue unt il
thermostat set pointis reached?
See setting display in Se rvice Mode
and displaying temperature
sensors.
Error code #63 on display . See
“Main Burner Short Cycl es”.
Does the flue damper rot ate to the
fully closed position?
Error code #56 on display.
Check for debris limiting damper
rotation. If no debris, re place
damper
System okay
Damper vaneshow in open position. If damper
is closed, disconnectfromharness and
REMOVE damper fromwater heater.
Harness shown disconnectedfrom
damper with BLACK and YELLOW
wires jumped.
CAUTIONUse Caution Not to Damage Connectors when making Voltage Measurements or Jumping Terminals
N
YY
N
N
N
N
Y
Y
Y
Y
From previous page
Example of error code sho wn on control displ ay.
Page 8
SELECT Lockout R ESET
Status Service Needed

Error Code Shown

in Water Heater Display

Troubleshooting
6
8