Weil-McLain GV90+ Installation And Start-Up Manual page 83

GV90+ Series 2
OAS·FIRED WATER BOILER -
Boiler Manual
Troubleshooting
(continued)
• §i
0
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IAWAIVIIIOI
Electricalaho<:k hazanl Whe<over yoo see TURN OFF POWER, follow tile Instructions. Faii.Jre to follow
· - Instructions
CO<Jid
result in sewre
personal
In , dealll or substantial
dama
e.
/s POWER
light
off?
•
~e
sure servloe switch or circuli Meaker Is on or fuses
No Yes
are good.
• Remove 120 VAC IN plug (Flgure 93, page 80, Item 1) on
IBC.
Is
POWER
light . . .
• USing voltmeter, check across lOP and bottom pins
of
120VAC IN rfiC8jllacle.
Flaslllng Aashlng wtth On steady
ak:Mle? anothe< lght?
(NOT fleshing)?
Does vonmeterlndlcate 120VAC?
No
I
Yes
!
!
TSTATICIRC CHART2,
light flashing
page 84
Prolllemls with Incoming
electricity. Have lcensed
electrician rllfl)alr
cfrcult.
PRESS SWITCH CHART3, CHARTS,
light flashing
page 65
page 87
•
Reconnect 120VAC IN plug .
FLAME CHART4, CHARTs,
light flashing
page 86 page 88
• Remove 120 VAC
~ansformer
PRIMARY plug
(Figure 93, page 80, Item 2) on IBC.
NO LIGHT IS
•
USing voltmeter, check across lOP and bottom pins of PR1-
MARY reoeptacle.
FLASHING, CHART7,
but there
Is
page 89
insufficieli'rt heat
Does vonmeterlndlcate 120VAC?
No
I
Yes
i
Replace IBC.
Retest
• Usualy lndlcales polarity on Incoming 120 VAC power
line Is wrong.
• TURN OFF POWER at servloe swflch or breaker, then
reverse tile HOT end NEUTRAL
w~es
entering the boiler
In
the
J·box.
• Restore POWER at servtoe switch or breaker.
•
Relnstal 120 VAC transformer PRIMARY plug.
•
Remove 24 VAC transformer pi.Jg (Agure 93, page 80,
Item 7) on IBC.
Is
POWER
light nashing
now?
•
USing voltmeter, check across pjns of receptacle.
No '*
Does
voltmeter Indicate
24
VAC?
No
I
Yes
i
Boiler should
n&N
operate
Have system clled<ed
by
a
normaly.
lloensed electrician.
If problem parslsts, cal your
local
Wei ~Mcl..aln
sales repre·
Replace transformer.
Replace IBC.
Retest.
Retest
sentatlve.
Part number 550-14-2-783/1012
83