Install Instructions
CG
i
GAS-FIRED
wATER
BOILER-
sERIEs
a-
Boiler
Manual
llc
Troubleshooting - control module lights (cont.)
CHART
5-
PURGE light flash
mg
and POWER lig
ht
on steady
- Usually
indicates
pressure
switch
opened
during
run
cycle
-
May
also
be
caused
by
wind
gusts
in
excess
of
31
mph
for
non-
direct
vent
sidewall-vented
boilers
-
!
&W
AR
N
IN
G!
Electrical shock hazard - Wherever you see & TURN OFF POWER& , follow the instructions. Failure to follow
instructions
co
uld resuk in severe personal injury, death,
or
substantial property damage.
.
Reset boiler control
by
turning
off
power at service switch or turning down thermostat f
or
at least 45 seconds .
.
Thermost
at
should call
for
heat and appropriate zone valves open .
Does
blower motor operate?
No
Yes
l l
.
Remove
IN
DUCER plug
(Figure
38,
llem
6,
page 53)
from plug receptacle
of
control module.
.
Place vokmeter leads across the
120
VAC N and
.
Wa~
5 minutes .
120
VAC H pins
of
the INDUCER receptacle (middle and
is
PURGE li
ght
Ha
shin
g?
bottom pins).
Does
the voltmeter indicate 120 VAC?
No
I
Yes
No
I
Yes
~
.
Replace inducer
assembly.
.
Boiler sho
ul
d be in
.
Retest.
normal operating
sequence.
.
Observe operati
on
until
.
Remove one of t
he
wires connected to tile pressure
thermost
at
is
sa
tisfied
sw
itch.
and inducer has
.
Check continuity
ac
ross t
he
switch terminals .
completed its post-
Does
the ohmmeter indicate the switch
is
closed?
purge cycle.
No
I I
Yes
~
.
Inspect and check wi
re
harness from con
tr
ol
is
vent blocked?
module to pressure switch.
No
I I
Yes
I
.
Reseal connect
or
in control
module
receptacle.
.
If harness is intact and
properly seated,
but
problem persists, replace
.
Check a
ir
pressure
sw
itch per manual Secti
on
11 b.
.
Clear vent and recycle boiler.
control modul
e.
.
Replace~
necessary. Retest.
.
Recheck
bo
iler operation.
.
Retest.
58 Pari Number 550-142-780/0712