Filter
Top Products
55
Error
Code
Definition of Code Cause of Problem and Actions Taken to Correct
23
Flame Detected
Before Ignition
Check to make sure gas valve has closed. No voltage should be present at the
gas valve before the ignition cycle. Make sure wire positions on the wire harness
are correct. If gas valve is stuck open, replace.
24
Flame Detected After
Heating Cycle
Completes
Check to make sure gas valve has closed. No voltage should be present at the
gas valve before the ignition cycle. Make sure wire positions on the wire harness
are correct. If gas valve is stuck open, replace.
31
Upper Sensor
Readings Faulty
Resistance of upper sensor out of operating range. Check continuity of wire
harness to upper sensor, and if O.K., replace upper sensor.
32
Lower Sensor
Readings Faulty
Resistance of lower sensor out of operating range. Check continuity of wire
harness to lower sensor, and if O.K., replace lower sensor.
57
Flame Rod Shorted
to Ground
Pilot flame sensor rod is shorted to ground. Check to see if flame sensor wire has
bare spots touching metal parts of if flame sensor rod is touching the pilot shield or
other metal parts. Replace pilot if flame sense wire is damaged or flame rod is
bent. Make sure pilot shield is not touching the pilot flame sensor.
58
AC Line Frequency
Error – Signal Too
Noisy or Frequency
Incorrect
Check line voltage frequency to the water heater. Determine if there are wide
fluctuations. Call an electrician if the problem persists. The water heater should
be on a separate line.
59
Line Voltage Too Low
or High
Check line voltage to the water heater. Determine cause of low or high voltage.
Call an electrician or your utility. The water heater should be on a separate line.
61
DC Output Voltage
Unstable
Check line voltage to the water heater for erratic readings. Also check wiring to
make sure there are no shorts. If power supply and wiring are O.K., replace
control board.
62
Maximum Number of
Retries Detected
Pilot is either not lighting or not staying lit during ignition cycle. Check inlet gas
pressure for minimum pressure on rating label. Is pilot electrode sparking? Check
gas valve wire harness for broken wires or shorts. If 24 volts is present between
PV and PV/MV terminals at the gas valve, replace gas valve. Check for voltage
output to the yellow and red gas valve wires on the control board pins. If during
the ignition trial period, there is no voltage present at the control board pin terminal
for the red and yellow wires leading to the gas valve, then replace the control
board. Replace pilot if wires are damaged or electrode is damaged.
63
Maximum Number of
Ignition Recycles
Detected
Pilot flame is lost during run cycle, then restablished on ignition cycle. Check inlet
gas pressure. Is gas pressure dropping below the minimum operating pressure on
the rating label after the main gas valve opens? Is the gas pipe size to the water
heater adequate? Check the pilot shield position and condition of the burners.
Clean or replace as needed. Check the pilot flame and observe the microamp
output on the run cycle. Check the pilot tubing to the pilot and replace if crimped
or damaged. Replace pilot if wires, flame sensor, or electrode is damaged.
64 Electronics Failure Replace control board.
65
High Water
Temperature
(Over 200˚F)
Water temperature in tank has exceeded 200˚F. Check lower sensor. Make sure
sensor is fully inserted into the well (clip on sensor wire secures sensor in place).
Check lower and upper (where used) sensor readings. If not within specifications,
replace sensor. If sensor and wire harnesses check O.K., replace control board.