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From page 22-2
2
Check for 8
s
hort to power:
Check the same wires
for
voltage.
Repair short
t
o power in
the
wire
YES
between the mode control
mot
or
Is there any voltage?
. /
and the heate
r
co ntrol panal
.
IThis damage. the
haater control
NO
panel.)
Check for an open in
the wires:
Check for continuity between
t
he
fo
ll
owing terminals of the mode
control
motOr 1P con
nector
and
the heater control panel
20P
con·
necta r.
20P:
1P:
No.
12
-
No.
3
No. 13
-
No.
4
No. 14
-
No.
5
No.
1S
-
No
,
6
No.
16
-
No
,
2
® ® ®
No.
19
-
No
, 7
T
T
NO
Repair
any
open in the
wirels
)
"-
Is there co ntinuity?
./
betwMn
the
mode
control
motor
and ""' ' -
control
poneI.
YES
Check
fo
r
10
0.8
wires or poor
connections at
the heater control
panel 20P connector and
at
the
mode cont
rol motor 7P con
nec-
t
or.
If
the connections
. ra
good.
substituta a
known-good beater
controt
panel.
and
recheck.
If
the
sympt
om/ indication goes
away.
replace the original heater control
panal.
HEATfR CQNlROl PANEL 20P CONNECTOR
2
6
8
9
10
11
12
13 14 15 16
11 18 19 20
YEL
YEL/
BLU
BRN/WHT
YEL/REO
GRN/YEL
BLU/BLK
'i
V
-=
7
7
"
"
7
Wire side
of
fema le terminals
2
8
9
10
1
12
13 1. 15 16
17 18 19
20
YEL
YEL/BLU
BRN/WHT
YEL/REO
®
®
M
ODE CONTROL MOTOR 7P CONNECTOR
re side
of
fem
ale
termina
ls
Wi
22-23
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Table of Contents
Troubleshooting
