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Troubleshooting
Guide (cont'd)
ELECTRICAL
SYSTEM
CHECK
(Use diagram
on page 33)
_,CAUTION
I
Label all wiring before disconnecting an)" wiring; to ensure
correct
reconnection.
Failure to follow this instruction
I
could cause improper
and possible dangerous operation, I
I resulting
in DEATH,
SERIOUS
BODILY
INJURY,
OR I
t PROPERTY DAMAGE.
]
No
i
I
I
I
I
Correct by wiring according
to dia-
gram.
/
Go to Thermostat
and Gas Supply L..L.....
Check section.
V
Supply 110/120 volts.
I Turi1
oN.
Check
at #1 for 1101120 volts to
ground.
•
I
I
No
+
Replace switch.
Replace gas pressure switch.
NOTE:
Requires minimum
31/2"
_C.
for natural gas or 8" W.C. for
propane (L.E) gas to operate.
Check
between # 2 and
wiring
#3.
Visually check that all components
are wired
correctly
according
to
wiring diagram on unit.
NO
........
J
.....
NO
........
.i
F
I
.....
No
........
J
1"
I
I
I
Yes
!
forPilot
heat. is lit and thermostat
is calling
I
Yes
+
Does power cord or power wiring
have 110/120 volts available (recep-
tacle and/or
unct on box)?
I
Yes
t Is on/off switch "ON"?
I
Yes
I Bl°wer mOt°r is running"
I
/
Yes
I' I Check
at #2 for 110/120
volts toi
,- ......
-_ ground.
i
I
]
Yes
!
"-""
t Unplug blower motor and check at
#3 i7or 110/120 volts to ground.
.....
No ........
a
i
!
i
'
I
'
Yes
,
+
]_" ......
No
..........
:
] Replace blower motor.
]
34
Yes
continued on facing page
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