IF LED LIGHT FLASHES:

All installations and services must be performed by qualified service personnel.

Yes

Yes

IF LED LIGHT FLASHES:

 

1 FLASH, THEN PAUSE

SYSTEM LOCKOUT

2 FLASHES, THEN PAUSE

PRESSURE SWITCH STUCK CLOSED

3 FLASHES, THEN PAUSE

PRESSURE SWITCH STUCK OPEN

4 FLASHES, THEN PAUSE

OPEN LIMIT SWITCH OR ROLLOUT 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)

 

CHECK COMPLETE SYSTEM OUT.

THE LED WILL ALSO FLASH ONCE AT POWER-UP.

LED LIGHT STAYS ON CONTINUOUSLY,

COMPLETE FAILURE - REPLACE

INTEGRATED CONTROL.

TROUBLESHOOTING COMPLETE.

49

Page 51
Image 51
Thermo Products CMA1-50N, CMA2-75N service manual If Led Light Flashes