Rheem GHE119SS - Page 43

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Before You Call For Service…
Alarm (‘A’)
and Alert
(‘T’) Codes
Description Current Alarm Screen Display
A001
Ignition lockout due to a total of 9 consecutive failed
ignitions. This will disable the heater.
A001 Ignition lockout.
->Clear error code by turning the unit o󰀨/on. If
problem persists, please contact technical support or
service provider.
A002
Flame not stable lockout. Lost ame three times during
one heat cycle. This will disable the heater.
A002 Flame is not stable.
->Clear error code by turning the unit o󰀨/on. If
problem persists, please contact technical support or
service provider.
A003
The intake pressure switch was detected open when
the blower was running. This will disable the heater.
A003 Intake Switch open. Check Wiring/Venting
->Check switch wiring and venting. If problem
persists, please contact technical support or service
provider.
A004
The proof of air ow switch was detected open during
heating operation. This will disable the heater.
A004 PoF Switch error H. Check Blower/Wiring.
->Check switch wiring and venting. If problem
persists, please contact technical support or service
provider.
A005
The proof of air ow switch was detected open during
pre-purge operation. This will disable the heater.
A005 PoF Switch error E. Check Blower/Wiring.
->Check switch wiring and venting. If problem
persists, please contact technical support or service
provider.
A006
The proof of air ow switch was detected open during
post purge operation.
A006 PoF Switch error P. Check Blower/Wiring.
->Check switch wiring and venting. If problem
persists, please contact technical support or service
provider.
A007
Exhaust ue pressure switch was detected open during
heating. This will disable the heater.
A007 Exhaust Switch open. Check Wiring/Venting
->Check switch wiring and venting. If problem
persists, please contact technical support or service
provider.
A008
The proof of air ow pressure switch was detected
closed before the blower started operation. This will
disable the heater.
A008 PoF Switch/Blower mismatch. Call Tech Svc
->The Proof of Fan pressure switch is closed when
the blower is o󰀨. Please contact technical support or
service provider.
T009
Gas pressure is below minimum specied. This will
cause di󰀩culties lighting the unit.
T009 No Gas detected. Check gas connections
->Verify gas supply to the unit. Check wiring to the
gas pressure switch. If problem persists contact techni-
cal support.