Watchdog reboot
Cause: an internal unexpected reset occurs
Solution : Power cycle the VariFlame.
Winding down failure
Cause : sail switch did not went off in the 4 seconds following the power off of the
fan
Solution: Verify that the fan motor is able to stop. Verify wiring to the fan’s motor.
Verify that nothing prevents sail switch to go to open position. Verify sail switch
wiring for short circuit.
LED meanings
Table 8-1
VariFlame — PCB 443
LED identification
Description
24V
Led active when the 24Vdc is present
5V
Led active when the 5Vdc is present
3.3V
Led active when the 3.3Vdc is present
AUTO - RX or SAFE - RX
Led blinks off during reception activity
AUTO - TX or SAFE - TX
Led blinks off during transmission activity
DBG1
Debug LEDs
DBG2
FAN ON
Led active when the fan relay is running
BURNER ON
Led active when the burner is running
LOCKOUT
Led active when the controller goes to the lockout mode for a BCM (Burner control-
ler management) safety issue
Table 8-2
VariFlame — User interface and PCB 435
Led identification
Description
LED activated green when the 24Vdc is present on the controller. LED activated
red when the 24Vdc is bad on the controller.
LED activated green when there is no safety issue.
LED activated red when there is a lockout issue from the BCM. (Burner Control
Module) for a safety issue.
LED activated green when the EDGE automation network is detected
LED activated red when the EDGE automation network is not detected
LED activated green when the EDGE safety network (Backup network) is detected
LED activated red when the EDGE safety network (Backup network) is not
detected
74
Pneg-2092
VariFlame Heater with Edge Connect
