Rheem GHE80SU - Page 46

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Before You Call For Service…
Alarm (‘A’)
and Alert
(‘T’) Codes
Description Current Alarm Screen Display
A037
Gas relay #2 contacts failed to properly close. This can
cause gas valve cycling and gas buildup in the burn
chamber. This will disable the heater.
A037 Gas Relay 2 stuck open. Call Tech Service
->If problem persists, please contact technical sup-
port or service provider.
A038
Gas relay #2 stuck closed. This could inadvertently
allow the gas valve to open. This will disable the
heater.
A038 Gas Relay 2 stuck closed. Call Tech Svc.
->If problem persists, please contact technical sup-
port or service provider.
A039
This is a control board hardware fault and requires con-
trol board replacement if persistent. This will disable
the heater.
A039 Flame sense cct fault. Call Tech Service
->If problem persists, please contact technical sup-
port or service provider.
A040
This is a control board hardware fault and requires con-
trol board replacement if persistent. This will disable
the heater.
A040 Controller RAM fault. Call Tech Service.
->If problem persists, please contact technical sup-
port or service provider.
A041
This is a control board hardware fault and requires con-
trol board replacement if persistent. This will disable
the heater.
A041 Controller ROM fault. Call Tech Service.
->If problem persists, please contact technical sup-
port or service provider.
A042
This is a control board hardware fault and requires con-
trol board replacement if persistent. This will disable
the heater.
A042 Controller EEPROM fault. Call Tech Svc.
->If problem persists, please contact technical sup-
port or service provider.
A043
This is a control board hardware fault and requires con-
trol board replacement if persistent. This will disable
the heater.
A043 IC Program execution fault. Call Tech Svc
->If problem persists, please contact technical sup-
port or service provider.
A044
Input power frequency not 60 Hz. (outside allowable
deviation). This will disable the heater.
A044 Processor Clock/Line Frequency Disagree
->If problem persists, please contact technical sup-
port or service provider.
A101
This is a display board hardware fault and requires con-
trol board replacement if persistent. This will disable
the heater.
A101 Conguration Data Restore Failure
->Initialization of the control system failed at
startup. Please contact technical support or service
provider.
A102 Set the internal clock time.
A102 Time Clock needs to be programmed
->Go to Settings, select time/date menu and set the
time and date.
A103
This is a display board hardware fault and requires con-
trol board replacement if persistent. This will disable
the heater.
A103 Time Clock not advancing time properly
->Please contact your qualied service provider.
A104
Presence of water detected by the leak sensor in the
bottom pan. If water is seen locate source and take ap-
propriate action to correct the issue. This may disable
the heater based on conguration settings.
A104 Water Leak Detected
->The presence of water has been detected by the
control. Please contact a qualied service provider.