Instructions / Assembly
43
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 off/on. If
problem persists, contact technical support or service
provider.
A002
Flame not stable lockout. Lost flame three times
during one heat cycle. This will disable the heater.
A002 Flame is not stable.
->Clear error code by turning the unit off/on. If
problem persists, 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, contact technical support or service provider.
A004
The proof of air flow 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, contact technical support or service provider.
A005
The proof of air flow 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, contact technical support or service provider.
A006
The proof of air flow switch was detected open during
post purge operation.
A006 PoF Switch error P. Check Blower/Wiring.
->Check switch wiring and venting. If problem
persists, contact technical support or service provider.
A007
Exhaust flue 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, contact technical support or service provider.
A008
The proof of air flow 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 off. Contact technical support or service
provider.
A010
Ignition Control Test Failure during End of Line (EOL)
test
: A010 Ignition Control Test Failure
-> End of Line (EOL) test failure. Unit disabled.
A012 Flame Detected During Standby/Disabled Mode
A012
->Clear error code by turning the unit off and on. If
problem persists contact technical support or service
provider
BEFORE YOU CALL FOR SERVICE…










