Weil-McLain GOLD CGa Installation And Maintenance Manual page 57

Boiler Manual
continued
Chart 5 — Spark-ignited pilot —
Electrical shock hazard — Wherever you see
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 or on boiler label.
Do FLAME and POWER
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
operating instructions.
• Perform start-up
procedures in boiler
manual to verify proper
operation.
Part Number 550-110-593/1099
— Usually indicates flame sensed when it shouldn't be there —
Are manual main shutoff valve and gas valve open?
No
lights still flash?
Yes
• Replace control module.
• Retest.
• Allow boiler to continue cycling.
Are FLAME and POWER
No
• Boiler may now be
operating
normally.
• Perform start-up
procedures in
boiler manual to
verify proper
operation.
FLAME & POWER
▲TURN OFF
POWER▲, follow the instructions. Failure to follow
• 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 or on boiler label.
• Look through the pilot inspection port to see if the pilot is
burning.
No
• Replace gas valve.
• Retest boiler.
lights flashing?
Yes
• Replace control • Boiler should now
module.
• Retest. • Original flashing
• See normal
lights flashing
Yes
Is pilot burning?
Yes
Are FLAME and POWER lights flashing?
No
• Replace control
operate normally. module.
• Retest.
FLAME light
caused by gas
valve not
operating
properly.
sequence of
operation,
Figure 24,
page 37.
Yes
57