GOLD CGi Gas-Fired Water Boiler — Boiler Manual
54
Part Number
550-110-710/0107
Troubleshooting — control module lights
(cont.)
11c
• Turn off power to the boiler at service switch or breaker.
• Wait at least 45 seconds.
• Turn on power to boiler.
• Restart boiler, following
Operating instructions
in this
manual (Section
9c
).
• Look through the pilot inspection port to see if the pilot is
burning during the prepurge period (first 30 seconds of
operation).
Is pilot burning during prepurge period?
CHART 4
—
FLAME & POWER
lights flashing
Electrical shock hazard — Wherever you see
TURN OFF POWER
, follow the instructions. Failure to follow
instructions could result in severe personal injury, death or substantial property damage.
• Leave main manual gas valve closed.
• Turn off power to boiler at service switch or breaker.
• Wait at least 45 seconds.
• Turn on power to boiler.
• Restart boiler, following
Operating instructions
in this
manual (Section
9c
).
Do
FLAME
and
POWER
lights still flash?
• Boiler should now
operate normally.
• Original flashing
FLAME light
caused by gas
valve not
operating properly.
• See normal
sequence of
operation,
Figure 30
,
page 37.
• Replace gas valve.
• Retest boiler.
Are
FLAME
and
POWER
lights flashing?
No
Yes
No
Yes
Are manual main shutoff valve and gas valve open?
• Replace control module.
• Retest.
— Usually indicates flame sensed when it shouldn't be there —
Yes
No
•
TURN OFF POWER
to boiler at service switch
or breaker.
• Open main manual gas
valve.
• Turn on power to boiler
at service switch or
breaker.
• Restart boiler per lighting
instructions.
• Perform start-up
procedures in boiler
manual to verify proper
operation.
• Allow boiler to continue cycling.
Are
FLAME
&
POWER
lights flashing?
No
Yes
No
Yes
• Replace control
module.
• Retest.
• Replace control
module.
• Retest.
• Boiler may now be
operating
normally.
• Perform start-up
procedures in
boiler manual to
verify proper
operation.
