Wiring Diagram
ERF2500++ISO
REFRIGERATOR
CONTROL
RIBBED
(NEUTRAL)
NON-RIBBED
(LINE)
COMPRESSOR
GROUND
THERMAL
CUT-OUT
LINE
CAB. GROUND
RL2
LINE
FREEZER
EVAPORATOR
HEATER
FF LEDS
NEUTRAL
J3-3
J3-1
LED POWER
BOARD (FF LEDS ONLY)
YEL
RED
CONDENSER FAN
YEL/BLK
NEUTRAL
NEUTRAL
RL8
RL6
U2 (SSR1)
RL4
POWER CORD
COMPRESSOR
CONTROL SIGNAL
LH1
USER
INTERFACE
12V DC
DAMPER
MOTOR
OUT2A
BRN/YEL
BLK/YEL
WHT/YEL
AT1
OUT2B
OUT1A
OUT1B
RED/YEL
PIN 6
PIN 5
PIN 3
PIN 2
BLK
WHT
RED
MB1
YEL/PNK
YEL/PNK
FREEZER DOOR
SWITCH
(DOOR OPEN)
BLK
BLK/ORN
YEL/PNK
YEL/PNK
PIN 4
PIN 5
MC1
VARIABLE SPEED
COMPRESSOR/ INV.
BLK
LT. BLU
BASE PLATE
GROUND
MB2
MC1
LT. BLU
MAIN INLET
WATER VALVE
FREEZER ICEMAKER
WATER VALVE
RED/BLK
BLK/WHT
12 VDC
GRN/YEL
BASE PLATE
GROUND
PIN 1
PIN 4
FREEZER DOOR
SWITCH
(DOOR OPEN)
BLK
BLK/ORN
YEL/PNK
YEL/PNK
COIL COVER
GROUND
BEHIND FRONT
LEFT ROLLER
FREEZER
ICE MAKER
(SEE FZ ICE
MAKER DIAGRAM)
4
3
2
1
BLK
LT. BLU
BRN
GRN/YEL
PIN 1
PIN 3
PIN 2
PIN 4
POWER
CONTROL SIGNAL
+12V DC
+5V DC
COMM.
GND
EVAPORATOR
FAN (DC)
RED/WHT
MB1
BRN/WHT
YEL/WHT
PIN 2
PIN 1
PIN 3
J2
1
5
2
RH1
PIN 2
MULLION HEATER
PIN 1
RIGHT DOOR
FLANGE
FLIP MULLION COVER
RIGHT HINGE
GROUND
GRN/YEL
3
J4
4
1
2
9
11
12
5
J5
6
3
4
12
J5
8
1
J9
OR
J11
2
3
4
J1
1
2
3
J3
7
2
4
J2
6
J3
6
NEUTRAL
PIN 5
PIN 4
PIN 3
PIN 3
PIN 5
PIN 6
BLK/PNK
1
2
RED/BLK
BLK/WHT
RED
BLK
LT. BLU
BLK
GRN/YEL
LT. BLU
2
1
3
RED/YEL
BRN/YEL
BLK/YEL
WHT/YEL
J2
3
2
1
3
1
2
AC SIDE
DC SIDE
BLK
LT. BLU
LT. BLU
BOARD-MOUNTED
AMBIENT THERMISTOR
1
J8
2
+5V DC
+5V DC
+12V DC
+12V DC
+12V DC
GND
LT.BLU/BLK
PIN 8
GRN/YEL
LT.BLU/BLK
2
3
4
1
1
2
GRN/YEL
BLK/PNK
YEL/BLK
LT. BLU
TO PERFECT TEMP
DRAWER HOUSING
LT. BLU
YEL/BLU
YEL/BLU
FREEZER
SENSOR
FRESH FOOD
SENSOR
FREEZER
EVAPORATOR
SENSOR
MB1
GRY/YEL
GRY/YEL
GRY/WHT
GRY/WHT
GRY/BLK
GRY/BLK
+5V DC
+5V DC
+5V DC
PIN 7
PIN 8
1
2
5
J6
6
7
8
11
12
WHT/GRN
WHT/RED
SEE FREEZER
LEDS
MC1
BACK VIEW
RH1
LH1
MB1
AT1
FRONT INSIDE
VIEW
MB2
LED POWER
BOARD
INLINE CONNECTOR ABBREVIATION KEY
ABBR. EXPLANATION
AT1 9 PIN CONNECTION AT AIR TOWER
LH1
5 PIN CONNECTION AT THE LEFT
DOOR UPPER HINGE
MB1
9 PIN CONNECTION IN THE MAIN
BOARD HOUSING BEHIND THE TOE
GRILLE
MB2
4 PIN CONNECTION IN THE MAIN
BOARD HOUSING BEHIND THE TOE
GRILLE
MC1
9 PIN CONNECTION IN THE
MACHINE COMPARTMENT TO THE
LEFT OF THE COMPRESSOR
RH1
2 PIN CONNECTION AT THE RIGHT
DOOR UPPER HINGE
1
3
7
9
1
3
7
9
CATCH
1
5
LATCH
1
5
AT1 & MB1
LH1
MC1
RH1
MB2
1
3
9
7
9
3
7
1
1
2
4
3
3
1
2
4
2
1
2
1
3
1
4
2
1
1
1
1
1
1
1
4
J1
J2
J3
J5
J7
J4
J6
J9
J11
2
11
12
1
BOARD VIEW
J8
AMBIENT
TEMP
SENSOR
RL1
RL2
RL5
RL3
RL6
RL9
RL8
RL4
RL7
U2
LT BLUE
LT BLUE
PTD DRAWER
HEATER THERM.
PTD DRAWER
HEATER
WHITE/YELLOW
BLACK/YELLOW
BROWN/YELLOW
RED/YELLOW
4
3
2
1
PTD
DAMPER
RED
BLACK
PTD
HEATER
GROUND
PTD
FAN
J2
1
2
3
4
J3
3
2
1
4
3
2
1
LT. BLU
YEL/BLK
GRN/YEL
BLK/PNK
1
J7
2
3
4
5
6
7
1
J11
2
3
4
1
J6
2
3
4
1
J8
2
PTD COVER
THERMISTOR T1
(PTD DRAWER)
TO THE TWO LEDS
IN THE PTD COVER
ORN
GRY
FROM BOTTOM
LEFT SIDE
FF LED
CONNECTION TO
PTD COVER
RED/BLACK
PINK/WHITE
WHITE/PINK
BLACK/WHITE
WHITE
WHITE
PTD USER
INTERFACE
BOARD
J3
PTD USER INTERFACE
KEYPAD ASSEMBLY
FLEX CABLE TO KEYPAD
J2
1
2
3
4
PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
PIN 7
PIN 8
PTD
MAIN PCBA
PTD ERROR CODES:
9X - SHORTED KEY/BUTTON,
WHERE THE "X" IS:
1 FOR "ON/OFF"
2 FOR "+"
3 FOR "C/F"
4 FOR "-"
5 FOR "LOCK"
6 FOR "V" DOWN ARROW KEY
7 FOR "^" UP ARROW KEY
2X - OPEN NTC,
WHERE THE "X" IS:
1 FOR THE PTD DRAWER NTC
3X - SHORTED NTC,
WHERE THE "X" IS:
1 FOR THE PTD DRAWER NTC
CE - LOSS OF COMMUNICATION
BETWEEN UI AND MAIN PCB
HI
F - UCL OVER TEMP
TIME OUT EXCEEDED
LO
F - LCL UNDER TEMP
TIME OUT EXCEEDED
PTD MODELS ONLY
PTD MODELS ONLYPTD MODELS ONLY
PTD MODELS ONLY
J1-3
J1-1
J3-3
GND
+12V
J3-1
NEUTRAL
FRESH FOOD
POWER (120V AC)
RG-1
PCBA
LED POWER
LED LIGHT WIRING
FZ-1FZ-2
REFRIGERATOR LEDS
RG-2
RG-7
RG-6
RG-3
RG-5
RG-4
FREEZER LEDS
WHT/BRN
WHT/BRN
WHT/BLU
WHT/BLU
1
2
3
4
1
WHT/BLU
2
WHT/BLU
3
WHT/BRN
4
WHT/BRN
WHT/BRN
4
3
2
1
WHT/BLU
LED
LED
LED
LED
LED LED
WHT/BRN
4
3
WHT/BRN
WHT/BLU
2
1
WHT/BLU
WHT/BRN
WHT/BRN
WHT/BLU
WHT/BLU
WHT/BRN
WHT/BRN
WHT/BLU
WHT/BLU
1
2
3
4
1
2
3
4
4
3
2
1
4
3
2
1
WHT/RED
WHT/RED
WHT/GRN
WHT/GRN
WHT/RED
WHT/GRN
LED LED
1
TYPICAL LED CONNECTOR
RG-2
RG-3
RG-4
RG-5
RG-6
RG-7
RG-8
RG-9
PTD LEDS
PTD MODELS
ONLY
RG-9
RG-10
4
3
2
1
4
3
2
1
ORN
ORN
GRY
GRY
ORN
GRY
LED LED
RG-8
WHT/BRN
4
3
2
WHT/BLU
LED
RG-1
1
WHT/BLU
2
WHT/BLU
3
WHT/BRN
4
WHT/BRN
LED
WHT/BLU
WHT/BRN
1
WHT/BRN
WHT/BLU
GRY
7
GRY
2
ORN
ORN
1
8
WHT/BRN
WHT/BLU
J1-3
J1-1
LED
POWER
BOARD
J4-3
J4-4
ERF2500++ISO
REFRIGERATOR
CONTROL
RG-10
Wire Diagram A06687901