LOCKOUT CODES
During an alarm condition, the Alarm LED
second rate. The remaining LED's are illuminated as a coded sequence identifying the reason for the
lockout. This remains true if power is removed and then restored in a locked out condition.
Table 18: LED LOCKOUT CODES
LED DISPLAY READOUT
= ON
LOCKOUT MESSAGE
T13 FUEL VALVE END
SWITCH OPEN
M-D LOW FIRE START
OPEN
M-D LOW FIRE START
OPEN - PTFI
M-D LOW FIRE START
OPEN - MTFI
M-D CLOSED
M-8 CLOSED
M-8 HIGH PURGE CIRCUIT
OPEN
FALSE FLAME-STANDBY
FLAME FAIL PTFI
FLAME FAIL - MTFI
FLAME FAIL AUTO
3-P RUN INTLK OPEN -
PREPURGE
3-P RUN INTLK OPEN -
PURGE
3-P RUN INTLK OPEN-PTFI
3-P RUN INTLK OPEN-MTFI
3-P RUN INTLK CLOSED-
STANDBY
3-P RUN INTLK OPEN-
AUTO
FUEL VALVE STATE
CHANGE
CHECK FUSE
CHECK WIRING
CHECK SCANNER
CHECK PROGRAMMER
CHECK CHASSIS
CHECK EXPANSION
MODULE
48
FAN
OPEN
CLOSE
DAMPER
DAMPER
is made to flash at approximately a twice per
AUTO
IGN
FLAME