Thermo Products CMA2-75N ユーザーズマニュアル

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.