Instructions / Assembly

44
BEFORE YOU CALL FOR SERVICE…
Alarm (‘A’)
and Alert
(‘T’) Codes
Description Current Alarm Screen Display
A016
Energy Cutout (ECO) switch is open. This will disable
the heater.
A016 High Tank Temperature. Call Tech Service.
->Clear error code by pressing clear button. Refer
to use and care manual for troubleshooting, or contact
technical support.
A017
Flue (exhaust) gas temperature has exceeded 155°F.
This will disable the heater.
A017 High Flue Temp. Recycle unit ON/OFF.
->Blower will continue to run until exhaust
temperature has decreased. If problem persists contact
technical support.
A018
Flue temperature sensor (thermistor) detected open.
This will disable the heater.
A018 Flue Temp Sensor open. Check wiring.
->Check wiring to sensor. If condition persists refer
to use and care manual or contact technical support.
A019
Flue temperature sensor (thermistor) detected short
circuited. This will disable the heater.
A019 Flue Temp Sensor shorted. Call Tech Svc.
->Check wiring to sensor. If condition persists refer
to use and care manual or contact technical support.
T020
Lower tank (inlet) temperature sensor (thermistor)
detected open.
T020 Lower Tank Sensor open. Check wiring.
->Check wiring to sensor. If condition persists refer
to use and care manual or contact technical support.
T021
Lower tank (inlet) temperature sensor (thermistor)
detected short circuited.
T021 Lower Tank Sensor shorted. Call Tech Svc.
->Check wiring to sensor. If condition persists refer
to use and care manual or contact technical support.
A022
Upper tank temperature sensor detected open. This
will disable the heater.
A022 Upper Tank Sensor open. Check wiring.
->Check wiring to sensor. If condition persists refer
to use and care manual or contact technical support.
A023
Upper tank temperature has exceeded 205°F. This will
disable the heater.
A023 Upper Tank temp. too hot. Call Tech Svc.
->Clear error code by pressing clear button. Refer
to use and care manual for troubleshooting, or contact
technical support.
A024
Upper tank temperature sensor detected short
circuited. This will disable the heater.
A024 Upper Tank sensor shorted. Call Tech Svc.
->Check wiring to sensor. If condition persists refer
to use and care manual or contact technical support.