GOLD CGa Gas-Fired Water Boiler — Boiler Manual
54
Part Number
550-101-009/0107
11c
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.
Problem is with incoming
electricity. Have licensed
electrician repair circuit.
Replace control module.
Retest.
Boiler should now
operate normally.
Have system checked by a
licensed electricain.
If problem persists, call your
local Weil-McLain sales
representative.
•
Make sure service switch or circuit breaker is on or
fuses are good.
•
Remove
120 VAC IN
plug (
Figure 30
,
Item 3
,
page 53) on control module.
•
Using voltmeter, check across top and bottom pins
of
120 VAC IN
plug.
Does voltmeter indicate
120 VAC
?
No
Yes
No
Yes
No
Yes
Chart
3
Chart
6
TSTAT CIRC
light flashing
Chart
4
Chart
5
DAMPER
light flashing
For insufficient heat or no heat problem, go to
Chart 7
, page 59, if
POWER
light is on steady,
with no other light flashing.
•
Usually indicates polarity on incoming
120 VAC
power
line is wrong.
•
TURN OFF POWER
at service switch or breaker,
then reverse the HOT and NEUTRAL wires entering
the boiler in the J-box.
•
Restore POWER at service switch or breaker.
Is
POWER
light flashing now?
No
Yes
Flashing
alone
Flashing with
another light
On steady
(not flashing)
No
Yes
Is
POWER
light off?
— Usually indicates reversed 120 VAC polarity if POWER light flashes by itself —
Is
POWER
light...
FLAME
light flashing
•
Reconnect
120 VAC IN
plug.
•
Remove
120 VAC
transformer
PRIMARY
plug
(
Figure 30
,
Item 2
, page 53) on control module.
•
Using voltmeter, check across top and bottom pins
of
PRIMARY
receptacle.
Does voltmeter indicate
120 VAC
?
•
Reinstall
120 VAC
transformer
PRIMARY
plug.
•
Remove
24 VAC
transformer plug (
Figure 30
,
Item 5
,
page 53) on control module.
•
Using voltmeter, check across pins of receptacle.
Does voltmeter indicate
120 VAC
?
Replace control module.
Retest.
Replace transformer.
Retest.
CHART 2
—
Spark-ignited pilot
— Troubleshooting
POWER
light status
Troubleshooting — spark-pilot boilers
(continued)
