Instructions / Assembly

42
Before You Call For Service…
Alarm (‘A’)
and Alert
(‘T’) Codes
Description Current Alarm Screen Display
A025
Control does not detect blower RPM. This will
disable the heater.
A025 No Blower RPM feedback. Call Tech Ser-
vice
->Please contact technical support or service
provider.
A026
Blower RPM feedback (actual RPM) is ≥300
RPM from desired RPM for > 1 minute.
A026 Blower expected RPM vs actual RPM
mismatch
->Please contact technical support or service
provider.
A027
Flame current detected prior to opening gas
valve. This will disable the heater.
A027 Flame present before ignit. Call Tech Svc
->Clear error code by turning the unit off and
on. If problem persists please contact technical
support or service provider.
A028
Flame current detected 10 seconds after closing
gas valve. This will disable the heater.
A028 Flame present w/o heating. Call Tech Svc.
->Clear error code by turning the unit off and
on. If problem persists please contact technical
support or service provider.
A029 Unit did not ignite. A029 Failed ignition. Retrying.
A030 Unit lost ame. A030 Flame lost during heating. Retrying.
A031
Powered anode control is no longer communi-
cating with the ignition control. This will override
any other anode based alarms.
A031 Powered Anode Communication failure
->Unit will continue to operate. Please con-
tact your qualied service provider.
T032
Lower (inlet) thermistor analog to digital con-
verter fault.
T032 Lower Tank temp A/D error. Call Tech Svc.
->If problem persists, please contact techni-
cal support or service provider.
A033
Exhaust ue thermistor analog to digital convert-
er fault. This will disable the heater.
A033 Flue sensor A/D error. Call Tech Service.
->If problem persists, please contact techni-
cal support or service provider.
A034
Upper tank thermistor analog to digital converter
fault. This will disable the heater.
A034 Upper Tank temp A/D error. Call Tech Svc.
->If problem persists, please contact techni-
cal support or service provider.
T035
Gas relay #1 contacts did not close. The unit
will continue to try and close the relay to initiate
combustion.
A035 Gas Relay 1 stuck open. Call Tech Service
->If problem persists, please contact techni-
cal support or service provider.
A036
Gas relay #1 stuck closed. This could inadver-
tently allow the gas valve to open. This will
disable the heater.
A036 Gas Relay 1 stuck closed. Call Tech Svc.
->If problem persists, please contact techni-
cal support or service provider.