PERFORMANCE DATA NO LOAD & NO DOOR OPENINGS AT
OUT 1A
OUT 2A
OUT 1B
OUT 1B
ERF-2500++ V5
REFRIGERATOR
CONTROL
NTC 1 - FF
NTC 2 - FF
NTC - FZ
DEFROST HEATER
DEFROST THERM.
NEUTRAL
CONTROL
GROUND
ICE FLAPPER
SOLENOID
+5V
+5V
+5V
DC
EVAPORATOR
FAN
M
DAMPER
MOTOR
M
FG
VCC(+12)
COM
VS
VCC
COMPRESSOR
CONDENSER
FAN
STANDARD
COMPRESSOR
M
COMMON
HIGH
LINE
AMBIENT
NTC
DEFROST SENSE
LINE
G5LE RELAY
LIN E
NEUTRAL
AUGER
MOTOR
LINE
CUBE/CRUSHED
ICE GATE CONTROL
M
DOOR
SWITCH
NEUTRAL
LINE
LINE
J3-16
J3-3
J3-3
J3- 7
DISPENSER VALVE
PRIMARY VALVE
ICE MAKER
FILL VALV E
ICE MAKER FILL SWITCH
G8P RELAY
J4-B1-6
J4-B1-1
J4-B1-2
J4-B1-3
J4-A1-9
J4-A1-3
J4-A1-10
J4-A1-4
J4-A1-11
J4-A1-5
J2- 1
J3- 2
J3-1
J2-2
J1-4
J4-B1-4
J4-A1-6
J4-A1-7
J4-B1-5
J4-A1-13
J4-A1-14
J8- 5
J8- 6
J8- 7
J8- 8
JF- 1
JF- 2
JF- 3
JF- 4
ASSY_OUT
ASSY_IN
+5V
GROUND
+5V
RESET_FLASH
BKGD/MSJ
GROUND
J9A-1
J9A-2
J9A-3
VEE (+12V)
COMM
GROUND
ISOLATED
USER
INTERFACE
J1-1
J2-9
J2-10
J3-13
J3-14
J3-15
J3-16
J1-3
J2-7
NEUTRAL (SERVICE CORD)
NEUTRAL (CONDENSER FAN)
NEUTRAL (WATER VALVE 1)
NEUTRAL (NOT USED)
NEUTRAL (COMPRESSOR)
NEUTRAL (LED POWER SUPPLY)
NEUTRAL (DISPENSER & ICE MAKER VALVE)
LINE (SERVICE CORD )
LINE (Vcc COMPRESSOR)
J6 -1
J6-2
J6-3
J6-4
J6-5
J6-6
J6-7
J6-8
ICE MAKER FAN POWER
TWIST TRAY MOTOR DIRECTION 1
TWIST TRAY SWITCH
NTC POWER
ICE MAKER FAN GROUND
TWIST TRAY MOTOR DIRECTION 2
TWIST TRAY SWITCH
NTC FEEBACK
TWIST
ICE MAKER
ICE & WATER
DISPENSER
CONTROL
OPTIONAL
LED POWER
BOARD
J3- 1
J3- 4
J3- 3
NEUTRAL
FREEZER
LIGHT S
REFRIGERATOR
LIGHTS
FZR DOOR SW. SENSE
J3-9
J3-10
J2-12
J3-8
J3-11
J2-6
LINE
FF DOOR SW. SENSE
0° F FREEZER & 37° F FRESH FOOD (2500 ++ V5)
Type A with Run/
Start Capacitor
Operating Time 74 to 84% 32 to 40% 100% 55 to 65%
Freezer
Temperature
Refrigerator
Temperature
Low Side Pressure
(cut-in)
Low Side Pressure
(cut-out)
High Side
Pressure (last
1
/3 cycle)
Wattage (last
1
/3 cycle)
Amps (running) 0.5 to 0.9 0.7 to 1.1 0.6 to 1.0 0.8 to 1.2
Base Voltage 115 vac (127 vac max)
65°F (18°C) Ambient 90°F (32°C) Ambient
Variable Speed Standard Variable Speed Standard
-2° to 2° F
-19° to -17° C
34° to 39° F
1° to 4° C
5 to 12 psig
43 to 83 kPa
-2 to 2 psig
-14 to 14 kPa
90 to 105 psig
621 to 724 kPa
0° to 4° F
-18° to -16° C
34° to 39° F
1° to 4° C
5 to 12 psig
43 to 83 kPa
-2 to 2 psig
-14 to 14 kPa
90 to 115 psig
621 to 793 kPa
-1° to 3° F
-18° to -16° C
34° to 39° F
1° to 4° C
N/A
-2 to 2 psig
-14 to 14 kPa
120 to 135 psig
827 to 931 kPa
50 to 60 90 to 130 60 to 70 100 to 140
DEFROST SPECIFICATIONS
Cabinet Size
23’ CD, 26’ 25° F (-4° C) 47° F (8° C) 450 30
Electronic Timer - (ADC) Defrost 24 minutes every 6-96 hours of compressor run time.
Thermostat Heater
Cut-in Cut-out Watts Ohms
CONDENSER FAN MOTOR
Watts RPM Amps
3.1 1100 CW Opposite Shaft 0.03 Running
REFRIGERATOR LIGHTS
FF DOOR SW. SENSE
NEUTRAL
FREEZER LIGHTS
INCANDESCENT LIGHTING MODELS ONLY
FZR DOOR SW. SENSE
-1° to 3° F
-18° to -16° C
34° to 39° F
1° to 4° C
5 to 12 psig
43 to 83 kPa
-2 to 2 psig
-14 to 14 kPa
130 to 155 psig
896 to 1069 kPa
SERVICE DATA SHEET
242288300
ICE & WATER - AUTOMATIC DEFROST
SIDE BY SIDE - R134a
IMPORTANT: PLEASE RETURN THIS SHEET TO ITS ORIGINAL LOCATION
Error Codes Special Modes
Display
FZ FF FZ FF
-- OP- Open FF mid-level
-- OP¯ Open FF upper-level
Interpretation Mode
thermistor
thermistor
Manual
Defrost
Display/
Showroom
OP -- Open FZ thermistor Sabbath Sb Sb V and +/same to deac-
-- SH-
-- SH¯ Shorted FF upper-level
Shorted FF mid-level
thermistor
thermistor
SH -- Shor ted FZ thermistor
SY CF
SY CE UI Main Control Board
UI to Main Control Board
communication failure;
on start up
communication error;
after a period in operation
Diagnostic No FF or FZ display,
Notes:
• Always check for pin back-outs, pinched or damaged wires
before replacing components.
• Determine whether failure is caused by the component, main
control board or wiring. Contact TID before replacing main
control board.
• Refer to Service Manual for additional information.
SY EF Evaporator fan failure
from Inverter to
Compressor
→ Check connections
from the compressor
and check resistance
→ Remove inverter box
Display Activate/Deactivate
d F + and -/same to deac-
(press for up to 10 sec.
simultaneously)
tivate
77 77 ^ and -/set
tivate
all UI LEDs on.
Replace Inverter
yes
Are connections
from Inverter to
Compressor intact?
yes
across compressor
winding pairs as shown.
Is resistance across
all winding pairs
yes
equal?
^ and V/+ to deactivate
no
Identify and repair
damaged wires or poor
connections between
Inverter and Compressor.
no
Replace Compressor
no
Replace Main Control
no
VCC Resistance Check
Check resistance between terminals
1 and 2, 2 and 3, 3 and 1.
If all resistances are equal,
yes
Diagnostic Mode
Activate:
Deactivate:
• Tests marked with “*” may not be applicable to this unit and will not be displayed in Diagnostic Mode.
• Tests displayed in diagnostic mode but not described below are for internal purposes only; advance through.
• View UI display for “on,” “off,” “CL,” “OP,” “SH,” “LO,” “HI” or numerical results of tests.
• Listen for operating sounds; feel for heat or air ow as appropriate to determine results of tests.
Test To activate test: Passing result
-- First Screen -- All LED lights on UI illuminated
-- Second Screen -- All segments on UI temperature displays illuminated
-- Third Screen -- Blank UI display, no lights illuminated, no shadowing; “-” and “+”
28 Dispenser Paddle Press disp. paddle “on” on UI when depressed; “off” when released
1* Standard Compressor
and Condenser Fan
2 Defrost Heater Press set Defrost limit switch must be closed; verify “CL” in test 26.
3 FF Light Press set With FF door open, FF lights on when “on”; off when “off”
8 Water Valve
(Dispenser)
9 FZ Light Press set With FZ door open, FZ lights on when “on”, off when “off”
10 Auger Motor Press set FZ door must be closed.
11 Cube/Crush
Solenoid
41* Perfect Temp Drawer
(PTD)
12* VCC Condenser Fan Press set Fan running when “on”; stopped when “off”
38* VCC Compressor Press set Compressor running when “on”; stopped when “off”
15 Evaporator Fan Press set Fan running for minimum of 10 sec. when “LO” or “HI”; stopped when
22 Damper Press set With inspection mirror, observe damper open when “OP”; closed when “CL”
23 FF Door Open/close FF door “CL” on UI when door closed; “OP” when open
24 FZ Door Open/close FZ door “CL” on UI when door closed; “OP” when open
26 Defrost Limit Switch Activates automatically “CL” on UI when closed; “OP” when open
36 Ice Chute Door Depress ice chute door
29 FF Thermistor
Mid-level
compressor is operative.
30 FZ Thermistor Activates automatically UI shows temperature sensed by FZ thermistor; pass if within 10°F of temperature
33 Ambient Thermistor
@ Main Board
35 FF Thermistor
Upper-Level
34 Ambient Thermistor
@ UI
0- Firmware
Parameters
2- Main Board
Firmware
4- UI Firmware Press set Displays digit sequence; record
Press ^ and V temperature pads for up to 10 sec. simultaneously.
Press + to advance through tests.
Press + for up to 10 sec. Diagnostic Mode will automatically deactivate after 5 min. of inactivity.
Note: Silence alarm.
blinking on FF display side to show location.
Press set Compressor and Condenser Fan running when “on”; stopped when “off”
Feel for heat from defrost heater when “on”.
If “OP” in test 26, heater will not activate.
Press set Be prepared to collect water at dispenser.
Water dispenses when “on”; stops when “off”
Motor running when “on”; motor stopped when “off”
Press set
Do not leave solenoid in activated state.
Solenoid activated when “on”; deactivated when “off”
Press set PTD UI illuminated when “on”, off when “off”
“off”. Feedback failure if fan starts but runs less than 10 sec. Listen for
speed change from “LO” to “HI”.
or press set
Activates automatically UI shows temperature sensed by FF thermistor; pass if within 10°F of
Activates automatically UI shows temperature sensed at main board; pass if within +20°F/-10°F
Activates automatically UI shows temperature sensed by upper level FF thermistor; pass if within
Activates automatically UI shows temperature sensed at UI; pass if within +20°F/-10°F of tem-
“OP” on UI when manually opened; “CL” when closed. Or, using “set”,
“OP” on UI when solenoid activated, “CL” when deactivated
temperature measured with gauge at mid-level FF thermistor location.
“OP-” if open; “SH-” if short
measured with gage at FZ thermistor location.
“OP” if open; “SH” if short
of temperature measured with gauge at main board location.
“OP” if open; “SH” if short
10°F of temperature measured with gauge at upper-level FF thermistor
location. “OP¯” if open; “SH¯” if short
perature measured with gauge at UI location. “OP” if open; “SH” if short
Press set Displays digit sequence; record
Press set Displays digit sequence; record
from main control into
the inverter (typically
BLK and RED wires)
Is Inverter receiving
10-15 VAC
and 1-5 VDC from
Is Inverter receiving 115
VAC from power supply?
Main Control?
→ Check at the connector
yes
the service cord into the
inverter (typically PUR and
WHT wires.)
If test 38 fails, diagnose as follows:
→ Check at the connector from
Variable Capacity Compressor (VCC) Diagnostics (select models)
Board
(BLK/WHT and RED/BLK wires)
Is Main Control
sending 10-15 VAC
and 1-5 VDC to
→ Check at Main Control
no
• Check voltage supply.
• Check and repair
Inverter?
service cord wiring
and connections.
Identify and repair
damaged wires or poor
connections between
Main Control and
Inverter
IMPORTANT SAFETY NOTE
The information provided herein is designed to assist qualified repair personnel only. Untrained persons should not attempt to make
repairs due to the possibility of electrical shock. Disconnect power cord before servicing this appliance.
IMPORTANT
If any green grounding wires are removed during servicing, they must be returned to their original position and properly secured.
CAUTION
All electrical parts and wiring must be shielded from torch flame. DO NOT allow torch to touch insulation; it will char at
200°F and flash ignite (burn) at 500°F. Excessive heat will distort the plastic liner.
TO UI
T
U
R
N
Mounting
Plate
Screws
Mounting
Plate
Screw
Motor
Gear
Timing
Gear
Water Fill
Adjustment
Ice Maker
ON/OFF
Switch
J7 CONN.
DOOR INLINES
DISPENSER HOUSING HEATER
FREEZER-MACH. COMPT.
INLINE
1
GRY/RED
1
GRY/RED
2
2
YEL/GRY
1 2
YEL/BLK
LIGHT SWITCH
(DOOR OPEN)
(FF)
P.T.C. STARTER WITH RUN CAPACITOR
START
C
RUN
COMP.
MOTOR
6
S
S
5
M
M
GRN/YEL
LT. BLU
RED
OVERLOAD
*CAPACITOR IS ONLY USED WITH
SOME P.T.C. MODELS
PTC
STARTER
L 1
3
2
VARIABLE SPEED CONTROL BOX
RUN CAPACITOR
VARIABLE SPEED COMPRESSOR
(N) WHITE
(L) PUR
GRN/YEL
5V+ BLK
5V- RE D
LT. BLU
BLK
BLK/WHT
RED/BLK
TO
I&W
MODULE
1
2
3
4
1
2
3
4
LIGHT SWITCH
(DOOR OPEN)
(FRZ)
DRAIN
TROUGH
TO UI
J4 CONN.
DEFROST
THERM.
1
2
3
FRZR DOOR
GROUND
BRN
BLU
YEL
RED
DEFROST HEATER
1
3
2
4
RED
WHT
BLK
LT. BLU
BRN/BLU
BRN/BLK
BLK
DOOR HINGE
GROUND
YEL/RED
YEL/PNK
FRZR
FAN
(DC)
BLU
1
2
3
3
1
4
2
1
2
3
4
1
2
FREEZER-LOW SIDE
9
3
6
8
2
5
4
7
1
LATCH
6
5
4
INLINE
CATCH
DK.BLU/WHT
YEL/WHT
RED/WHT
GRN/YEL
BRN
BRN/WHT
YEL/RED
LT. BLU
FREEZER-MACH. COMPT.
INLINE
1
BLU/WHT
BLK
2
YEL/BLK
3
BRN
4
GRY/BLK
5
6
GRY/BLK
YEL/RED
YEL/PNK
YEL/GRY
10
YEL
11
PUR/BLK
LT. BLU
12
1
2
3
4
5
6
9
6
3
8
2
5
4
7
1
9
8
7
3
2
1
7
8
9
LATCH
CATCH
10
11
12
GRN/YEL
9
BLU/WHT
8
7
YEL/RED
GRY/WHT
GRY/WHT
PUR
3
BLK
YEL
2
LT. BLU
1
CATCH
LATCH
4
1
7
2
5
8
6
3
9
FREEZER-ICEMAKER
INLINE
ICE MAKER INFORMATION
Test Cycling
Press the momentary contact on the ON/OFF switch for approximately 15 seconds. Ice maker
will continue to complete the cycle.
The water fill can be adjusted without removing the ice maker cover. To adjust the fill size,
remove the small round plug next to the On/Off Switch. Insert a #2 Phillips screwdriver into the
hole about an inch or until it engages the Water Fill Adjustment Screw. Turn the screw clockwise
to reduce the ll size; turn the screw counterclockwise to increase the ll size. One turn equals
approx 20cc (0.68 oz). The correct ll is 85 to 95cc (2.75 to 3.25 oz). When a water valve is
replaced, check the fill volume.
Water Fill Volume
LT. BLU
BLK
RIBBED
NON-RIBBED
A1
B1
A2
B2
ALL WIRE CONNECTIONS
MARKED BY "o" SYMBOL.
5 VDC (120V AC REF.)
VARIABLE
BLK
SPEED
RED
COMPRESSOR/ INV.
1
RED/YEL
BRN/YEL
2
BLK/YEL
3
WHT/YEL
4
GRY/RED
GRY/RED
GRY/BLK
GRY/BLK
J1
123
4
WHT/GRN
WHT/BRN
FLAPPER
MICROSWITCH
PADDLE
MICROSWITCH
LED LIGHT WIRING
TYPICAL LED CONNECTOR
SPLICE
YEL
TAN
SPLICE
SPLICE
DIODE
DIODE
DIODES MUST BE
POLARIZED IN
SAME DIRECTION
COND. FAN
1
8
2
GRY/BLK
9
GRY/BLK
3
GRY/RED
10
GRY/RED
4
GRY/WHT
11
5
BLK/YEL
BRN/BLK
BRN/YEL
RED/WHT
WHT/YEL
RED/YEL
4
5
6
J4A
12
6
13
7
14
MAIN BOARD
1
4
J4B
2
5
3
6
1
2
3
GRY/WHT
BRN/BLU
BRN/WHT
DK.BLU/WHT
YEL/WHT
J3
J4A
16
8
J2
6
12
5
11
4
10
9
3
2
8
7
1
8
15
7
1
14
6
5
13
4
12
11
3
2
10
91
J4B
9
2
3
10
11
4
12
5
6
13
7
14
16
LT. BLU
8
YEL/RED
15
LT. BLU
TAN
7
14
LT. BLU
BLK/PNK
6
13
5
J3
12
4
BLU/WHT
11
YEL/RED
3
PUR/BLK
10
YEL/BLK
2
RED/BLK
9
YEL/BLK
1
BLK/WHT
12
YEL/GRY
6
YEL/PNK
11
5
J2
10
LT. BLU
4
9
LT. BLU
3
8
RED
2
BLK
7
1
BRN
LT. BLU
1
J1
BLK
3
GRN/YEL
2
1
J9 A
1
RED
4
1 RED
2 WHT
3 BLK
SPLICE
TAN/YEL
BROWN
MAIN
WATER
VALVE
YEL/BLK
YEL/RED
LT. BLU
MACH. COMPT.
HARNESS
1
2
3
YELLOW
WATER
DISPENSER
VALVE
GREEN
I/M
WATER
VALVE
MACH. COMPT.
FRESH FOOD
INLINES
GRY/BLK
GRY/BLK
2 34
GRY/RED
GRY/RED
1
LED LIGHTING
MODELS ONLY
1 2
GRY/BLK
GRY/BLK
123
FF LED
HARNESS
ICE MAKER SPECIFICATIONS
SPLICE
LIGHTING MODELS ONLY
LT. BLU
YEL/BLK
4
TOP
LIGHT
MID
LEVEL
LIGHT
CRISPER
LIGHT
0PTIONAL FF
LIGHTING
CONFIGURATIONS
INCANDESCENT
INCANDESCENT
LIGHTING MODELS ONLY
1
LT. BLU
LED POWER
SUPPL Y
J3
J1
234
1
3
4
2
YEL/BLK
WHT/RED
WHT/BLU
YEL/RED
FRZR
LIGHT
AUGER MOTOR
SOLENOID
SEE STANDARD
COMPRESSOR
WIRING
BLK/WHT
RED/BLK
NEUTRAL
GROUND
LINE
DAMPER
MOTOR
UPPER
FRESH FOOD
THERMISTOR
(LED MODELS ONLY)
MID-LEVEL
FRESH FOOD
THERMISTOR
COMPRESSOR
GROUND
7
8
9
1
2
3
4
5
6
AUGER
SWITCH
6
5
4
ICE MAKER
1
5
2
3
6
GRY
8
9
GRY
7
4
FREEZER
THERMISTOR
LED
LED
RELAY
S
F
O
L
L
A
E
P
N
P
O
E
I
R
D
ICE & WATER DISPENSER
432
WHT/BRN
WHT/BRN
LED LE D LED
TOP
REAR
1
WHT/BLU
WHT/BLU
2
3
WHT/BRN
4
WHT/BRN
FRONT
REFRIGERATOR LEDS
1
432
432
WHT/GRN
WHT/GRN
WHT/RED
LED LED
UPPER
TOP
LEFT
LEFT
+12V DC
GND
+12V DC
GND
+12V DC
GND
+12V DC
GND
CIRCUIT BOARD
LINE (120V AC)
NEUTRAL
MODULE
1
432
WHT/BLU
WHT/BLU
WHT/BRN
WHT/BRN
WHT/BLU
UPPER
RIGHT
LED
TOP
1
4
WHT/GRN
WHT/RED
WHT/RED
WHT/GRN
MIDDLE
LEFT
1
WHT/BLU
WHT/GRN
LOWER
RIGH T
WHT/RED
MIDDLE
LED
123
WHT/RED
1
1
432
WHT/BRN
WHT/BRN
WHT/BLU
WHT/BLU
RIGH T
WHT/BRN
WHT/BRN
WHT/BLU
WHT/BLU
4
WHT/RED
WHT/GRN
WHT/GRN
LEDLED
LOWER
LEFT
FREEZER LEDS
123
WHT/RED
1
2
TO UI
3
4
J3 CONN.
5
6
1
DOOR
2
3
4
4
3
2
1
Electrical 115 vac (127 vac max)
Thermostat
Opens at 48° F ( 9° C), Closes at 9° F ( -13° C)
Heater Wattage 112 watts
ICE MAKER CONNECTOR PLUG CONNECTIONS
Wire Number Wire Color Connects to:
1 Green/Yellow Ground
242288401
2 Yellow Water Valve
3 Black Line
4 Light Blue Neutral