Portable Dryer Troubleshooting
73
Upper Control Box Internal Wiring

AC1

L1

L2

J6-02

3FO

1FO

110XO

AC1

3FI

1FI

35
49
YEL
YEL
ORG
ORG COM
N/O
N/C
N/C
COM
N/O
YEL
LOAD N/O
USER INSTALLED
YELLOAD COM
USER INSTALLED
ORG
UNLD N/O
USER INSTALLED
ORG
UNLD COM
USER INSTALLED
(CANADA ONLY)
J1-16
MERCOID SWITCH
BLK
MAXON POWER
J3-04
WHT
MAXON NEUTRAL
J3-03
W
O

CONTACTOR

SCR

SCR CONT POWER
SCR CONT NEUTRAL
J6-09J3-18
RIGHT GRAIN HI NONE
J7-08
J6-12 (BLK)
WHT
BLK
BLK
WHT
WORK LIGHT PWR LITE
WORK LIGHT NEUT J6-18
USER SAFETY
+12 VDC
HOUSE HI LIMIT
VAPOR HI LIMIT
+12 VDC
LEFT GRAIN HI
PLENUM HI LIMIT
+12 VDC
REAR DISCHARGE
+12 VDC
OUT OF GRAIN
+12 VDC
MOTOR OVERLOAD
AIRSWITCH N.O.
AIRSWITCH COM.
AIRSWITCH N.C.
FLAME DETECT
FLAME DETECT
PLENUM TEMP
GRAIN/PLENUM
GRAIN TEMP
120 AC NEUTRAL
120 AC POWER
MAIN SOL NEUT
MAIN SOL PWR
WHT
J6-02
ORGJ7-14
WHT
J7-13
YELJ7-12
A-
A+
PUR
BLK
WHT
RED
J7-02
M-SOL
SCR2
FAN POWER
FAN NEUTRAL
J4-01
J4-02
J6-07
SCR P3
SCR P2
SCR P1
IGNITION POWER
IGNITION NEUTRAL
LOAD POWER
LOAD NEUTRAL
UNLOAD POWER
UNLOAD NEUTRAL
CYCLE SOL PWR
CYCLE SOL NEUT
J6-06J6-03J3-14J3-11J3-12J3-01J3-02J6-14J6-15
BLK
GRY
GRY
BLU
WHT
BLU
RED
RED
RED
RED
RED
RED
RED
RED
J6-13
NONE
AC 1
J7-20
J7-05
J7-11
J7-19
J7-10
J7-09
J7-04
J7-03
J7-01
J1-13
J1-17
FAN #1
TRANSFORMER
UPPER STRIP
TERMINAL ON
BLOCK
DISTRIBUTION
BREAKER
MAIN
DRIVE
SCR
OVERLOADOVERLOADOVERLOAD
LOAD AUX.UNLOAD AUX.
FAN #1LOADUNLOAD
BREAKER BREAKER BREAKER
FAN #1 LOADUNLOAD
LOADUNLOAD
RR
RRR
R
R
R
R
R
J6-03
J3-14
WHT
BLU
J3-12
J3-11
WHT
YEL
OR
J3-02
J3-01
WHT
OR
P
P
P
BLK
WHT
BLU
W
Y
W
OR
W
F-
F+
L1
L2
A+
A-
3
2
1
Competitor Wiring Reference