Thermo Pride CHB1-50N Installation And Operation Manual page 52

All installations and services must be performed by qualified service personnel.
Yes
TROUBLESHOOTING COMPLETE.
IF LED LIGHT FLASHES:
1 FLASH, THEN PAUSE
2 FLASHES, THEN PAUSE
3 FLASHES, THEN PAUSE
4 FLASHES, THEN PAUSE
6 FLASHES, THEN PAUSE
7 FLASHES, THEN PAUSE
8 FLASHES, THEN PAUSE
CONTINUOUS FLASHING
(NO PAUSE)
THE LED WILL ALSO FLASH ONCE AT POWER-UP.
CHECK COMPLETE SYSTEM OUT.
LED LIGHT STAYS ON CONTINUOUSLY,
COMPLETE FAILURE - REPLACE
INTEGRATED CONTROL.
46
Yes
SYSTEM LOCKOUT
PRESSURE SWITCH STUCK CLOSED
PRESSURE SWITCH STUCK OPEN
OPEN LIMIT SWITCH OR ROLLOUT SWITCH
115 VOLT AC POWER REVERSED
LOW FLAME SENSE SIGNAL
CHECK IGNITOR OR IMPROPER GROUNDING
FLAME HAS BEEN SENSED WHEN
NO FLAME SHOULD BE PRESENT (NO
CALL FOR HEAT)