Error | Definition of Code | |
Code | ||
|
23Flame Detected Before Ignition
Flame Detected After
24Heating Cycle
Completes
31Upper Sensor
Readings Faulty
32Lower Sensor
Readings Faulty
57Flame Rod Shorted
to Ground
AC Line Frequency
58Error – Signal Too Noisy or Frequency Incorrect
59Line Voltage Too Low
or High
61DC Output Voltage
Unstable
62Maximum Number of
Retries Detected
Maximum Number of
63Ignition Recycles
Detected
64Electronics Failure
High Water
65Temperature (Over 200˚F)
Cause of Problem and Actions Taken to Correct
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.
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.
Resistance of upper sensor out of operating range. Check continuity of wire harness to upper sensor, and if O.K., replace upper sensor.
Resistance of lower sensor out of operating range. Check continuity of wire harness to lower sensor, and if O.K., replace lower sensor.
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.
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.
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. 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.
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.
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. Replace control board.
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.
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