Error
Definition of Code
Code
Maximum Number of
62
Retries Detected
Maximum Number of
63
Ignition Recycles
Detected
64
Electronics Failure
High Water
65
Temperature (Over
200°F (93°C))
Cause of Problem and Actions Taken to Correct
• Burner is either not lighting or not staying lit during ignition cycle.
• Check inlet gas pressure for minimum pressure on rating label.
• Can you hear sparking to the burner?
• Check high voltage cable connections.
• Check inlet gas pressure to the gas valve making sure the pressure is within
the limits specified on the rating label.
• Check gas valve wire harness for broken wires or shorts.
• Check outlet gas pressure.
• If 24 volts is present to the terminals at the gas valve, replace gas valve.
• Check for voltage output to the blue gas valve wires on the control board pins.
• If during the ignition trial period, there is no voltage present at the control
board pin terminals for the blue wires leading to the gas valve, then replace
the control board.
• Replace spark rod if insulator is damaged or rod is loose.
• Check to make sure combustion blower is operating when thermostat calls for
heat.
• If blower is not running check for 120 volts to blower harness and then at
blower pin connections.
• Replace control, wire harness, or blower if defective.
• Check to make sure vent terminals are clear of debris or snow and ice.
• Make sure the condensate drain flows freely.
• Burner flame is lost during run cycle, and then re-established on ignition cycle.
Check inlet gas pressure.
• Is gas pressure dropping below the minimum operating pressure on the rating
label after the gas valve opens?
• Is the gas pipe size to the water heater adequate?
• Check the condition of the burner.
• Clean or replace as needed.
• Check the burner flame and observe the microamp output on the run cycle.
• Replace burner if clogged with dirt and debris.
• Replace spark rod or flame sensor if damaged.
• Check to make sure vent terminals are clear of debris or snow and ice.
• Make sure the condensate drain flows freely.
• Replace control board.
• Water temperature in tank has exceeded 200°F (93°C).
• Check tank sensor.
• Make sure sensor is fully inserted into the well (clip on sensor wire secures
sensor in place).
• Check sensor reading.
• If not within specifications, replace sensor.
• If sensor and wire harnesses check O.K., replace control board.
56