22
APPENDIX
Diagnostic Chart
LED
ACTIVITY
DESCRIPTION
COLOR
MINIMUM
LOCKOUT
PERIOD¹
LED
ACTIVITY
DESCRIPTION
COLOR
MINIMUM
LOCKOUT
PERIOD¹
LED
ACTIVITY
DESCRIPTION
COLOR
MINIMUM
LOCKOUT
PERIOD¹
LED OFF
NO 24 VAC
POWER TO
CONTROL
N/A
6 FLASHES
NORMALLY CLOSED
BLOCKED BURNER
SWITCH/AUXILIARY
SWITCH OPEN
RED
MAXIMUM
RECOVERY TIME
-
1 HOUR IF TIME
EXCEEDED
2 FLASHES ID PLUG FAILURE AMBER HARD LOCKOUT
HEATING MODE
RED,
AMBER,
GREEN
POWER-UP
VERIFICATION OF
LED
N/A
7 FLASHES GAS VALVE CIRCUIT
SHORTED
RED
1 HOUR
3 FLASHES CONTROL FUSE
OPEN
AMBER
5 MINUTES
STEADY
ON
CONTROL FAULT
DETECTED
RED
1 HOUR OR HARD
LOCKOUT
8 FLASHES
RESERVED
RED
STEADY ON
STANDBY
NORMAL
OPERATION NO
THERMOSTAT
REQUESTS
GREEN
N/A
1 FLASH
RETRIES
EXCEEDED
RED
1 HOUR FIXED 10 FLASHES
HIGH LIMIT SWITCH
RECOVERY TIMER
EXPIRED
RED
1 HOUR OR HARD
LOCKOUT
RAPID
FLASH
CLEAR ERROR
HISTORY
GREEN
N/A
2 FLASHES
PRESSURE
SENSOR NULL
ERROR
RED
5 MINUTES
STEADY ON OEM FACTORY TEST
MODE
AMBER
N/A
1 FLASH
CALL FOR
HEATING
GREEN
N/A
3 FLASHES
PRESSURE
SENSOR SPAN
ERROR
RED
5 MINUTES
RAPID
FLASH
FIELD TEST MODE
AMBER
N/A
2 FLASHES
CALL FOR
COOLING
GREEN
N/A
4 FLASHES
HIGH LIMIT
SWITCH OPEN
RED
MAXIMUM
RECOVERY TIME
-
1 HOUR IF TIME
EXCEEDED
1 FLASH
LOW FLAME SENSE
AMBER
N/A
3 FLASHES
CONTINUOUS
FAN OPERATION GREEN
N/A
5 FLASHES
FLAME PRESENT
WITH GAS VALVE
OFF
RED
5 MINUTES
THE STATUS LIGHT ON THE FURNACE CONTROL MAY BE USED AS A GUIDE TO TROUBLESHOOTING THIS
APPLIANCE. SOME MORE USEFUL STATUS LIGHT CODES ARE BELOW:
¹THE FAULT CONDITION MUST BE CLEARED FOR 30 SECONDS BEFORE NORMAL OPERATION CAN RESUME.
A POWER CYCLE WILL ASLO RESET ANY LOCKOUT.
