All installations and services must be performed by qualified service personnel.
3 flashes, then pause | pressure switch stuck open |
4 flashes, then pause | open high limit switch |
6 flashes, then pause | 115 volt AC power reversed |
7 flashes, then pause | low flame sense signal |
8 flashes, then pause | check ignitor or improper grounding |
Continuous flashing | Flame has been sensed when |
(no pause) | no flame should be present |
(no call for heat)
The LED will also flash once at power-up.
: Power must be disconnected before servicing.
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