1. home and garden
2. home furnishings
3. lamps and lighting

SERVICE DATA SHEET
A01544701
PERFORMANCE DATA NO LOAD & NO DOOR OPENINGS AT 37°/0°
CONTROL SETTING
Type A with Run / Start
Capacitor
65°F (18°C) Ambient
90°F (32°C) Ambient
90 to 100%
100%
Operating Time
-1° to 3°F
(-18° to -16°C)
34° to 39°F
(1° to 4°C)
34° to 39°F
(1° to 4°C)
-2 to 6 psig
(-14 to 41 kPa)
-2 to 6 psig
(-14 to 41 kPa)
85 to 105 psig
(586 to 724 kPa)
120 to 135 psig
(827 to 931 kPa)
Refrigerator Temperature
Low Side Pressure
High Side Pressure
(last 1/3 cycle)
Wattage (last 1/3 cycle)
Amps (running)
Base Voltage
FREEZER ICE MAKER - AUTOMATIC DEFROST
-5° to 2°F
(-20° to -17°C)
Freezer Temperature
30 to 50
50 to 70
.4 to .8
.7 to .9
IMPORTANT: PLEASE RETURN THIS SHEET TO ITS ORIGINAL LOCATION.
ERROR CODES
Display
Heater
Defrost
Heater
Termination
Cabinet Size:
Cut-in
Cut-out
Watts
Ohms
Cut-out
110°F
(43.3°C)
135°F
(57.2°C)
500
26.5
39°F
(4°C)
3.1
1100 CW
Opposite Shaft
0.03 Running
FREEZER ICE MAKER SPECIFICATIONS
Electrical
115 vac (127 vac max)
Thermostat
Opens at 48°F ( 9°C), Closes at 15° F ( -9°C)
Heater Voltage
115 vac
LINE
NEUTRAL
POWER
ICE MAKER
MOTOR
THERMOSTAT
NO
BLU
BLK
C
MOLD HEATER
165 WATTS
NO
GRN / YEL
P-1
C
MOLD
MOUNTING
PLATE
ICE MAKER
NC
RED
NC
C
NC
SHUTOFF
SWITCH
YELLOW
WATER FILL
SWITCH
•
Second Screen
--
All LED lights on UI illuminated.
--
Third Screen
--
Blank UI display, no lights illuminated, no shadowing.
2
Defrost Heater
Press power on-off
Defrost heater on when “on”; off when “off”.
3*
FF Light
(Incandescent
Models)
Press power on-off
FF lights on when “on”; off when “off”
9*
FZ Light
(Incandescent
Models)
Press power on-off
FZ lights on when “on”, off when “off”
F
FF ٨ and FF ٧ / same to deactivate
12
VCC Condenser Fan
Press power on-off
Fan running when “on”; stopped when “off”
OP
--
Open FZ Thermistor
Display/
Showroom
77
77
FZ ٨ and FF ٧ / Power-on-Reset (POR)
13*
FF Light
(LED Models)
Press power on-off
FF lights on when “on”; off when “off”
--
SH-
Sabbath
Sb
Sb
FZ ٧ and FF ٨ / same to deactivate
38
VCC Compressor
Press power on-off
Compressor running when “on”; stopped when “off”
FZ ٨ and FZ ٧ / FF ٨ to deactivate
15
Evaporator Fan
Press power on-off
Stopped when “off”. Listen for speed change from “LO” to “HI”.
20*
FZ Light
(LED Models)
Press power on-off
FZ lights on when “on”, off when “off”
22
Damper
Press power on-off
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
29
FF Thermistor
Activates automatically
UI shows temperature sensed by FF thermistor; pass if within 10°F of
temperature measured with gauge at FF thermistor location.
“OP” if open; “SH” if short
30
FZ Thermistor
Activates automatically
UI shows temperature sensed by FZ thermistor; pass if within 10°F of
temperature measured with gauge at FZ thermistor location.
“OP” if open; “SH” if short
33
Ambient Thermistor @ Main Board
Activates automatically
UI shows temperature sensed at main board; pass if within +20°F/10°F of temperature measured with gauge at main board location.
“OP” if open; “SH” if short
39
Evaporator
Thermistor
Activates automatically
UI shows temperature sensed by evaporator thermistor; pass if within
10°F of temperature measured with gauge at evaporator thermistor
location. “OP” if open; “SH” if short
34*
Ambient Thermistor @ UI
Activates automatically
UI shows temperature sensed at UI; pass if within +20°F/-10°F of
temperature measured with gauge at UI location. “OP” if open; “SH”
if short
0-
Firmware
Parameters
Press power on-off
Displays digit sequence; record
2-
Main Board
Firmware
Press power on-off
Displays digit sequence; record
4-
UI Firmware
Press power on-off
Displays digit sequence; record
--
CF
SY
CE
SY
EF
Shorted FZ
Thermistor
System
Diagnostic
FZ
FF
No FF or FZ display,
all UI LEDs on.
UI to Main Control
Notes:
Board communication • Always check for pin back-outs, pinched or damaged wires before
failure; on start up
replacing components.
• Determine whether failure is caused by the component, main control board or
UI Main Control
wiring. Contact TID before replacing main control board.
Board communica• Refer to Service Manual for additional information.
tion error;
after a period
in operation
Evaporator fan failure
Check at the connector from the power cord
harness into the inverter board, located in
the machine compartment.
(PUR and WHT wires)
•
Blank UI display, no lights illuminated, no shadowing.
--
d
→
yes
Check at Inverter Board on
Compressor
(BLK and RED wires)
→
yes
Is Inverter Board receiving 10-15
VAC and 1-5 VDC from Main
Control Board?
no
P-4
WATER VALVE
RED
→
--
Manual Defrost
Variable Capacity Compressor (VCC) Diagnostics (select models)
If test 38 fails, diagnose as follows:
LT. BLUE
NO
Activate/Deactivate
(press for up to 10 sec. simultaneously)
Passing result
First Screen
Open FF Thermistor
Is Inverter Board receiving 115 VAC
from power supply?
RED
HOLD
SWITCH
ICE MAKER
BLK
THERMAL
CUT-OUT
LT. BLUE
ICE MAKER
BRN
BLK
P-3
SPECIAL MODES
Display
To activate test:
--
OP
--
SY
Amps
Tests marked with “*” may not be applicable to this unit and will not be displayed in System 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 flow as appropriate to determine results of tests.
Mode
FF
SH
CONDENSER FAN MOTOR
RPM
Press FF ٨ for up to 10 sec. Diagnostic Mode will automatically deactivate after 5 min. of inactivity.
Note: Silence alarm.
Interpretation
FZ
Electronic Timer - (ADC) Defrost 24 minutes every 6-96 hours of compressor run time.
Watts
Deactivate:
Test
DEFROST SPECIFICATIONS
27’ & 28’ SD, 22’ CD
Press FZ ٨ and FZ ٧ for up to 10 sec. simultaneously. Press FF ٨ to advance through tests.
•
•
•
•
BOTTOM FREEZER - R134a
115 vac (127 vac max)
Thermal Cutout
SYSTEM DIAGNOSTIC MODE
Activate:
Is resistance across all winding
pairs equal?
no
Check voltage supply.
Check and repair power
cord harness wiring and
connections.
Remove inverter box from the
compressor and check resistance
across compressor winding pairs as
shown.
Check at Main Control Board
(BLK/WHT and RED/BLK wires)
Is Main Control Board sending
10-15 VAC and 1-5 VDC to
Inverter Board?
yes
P-2
Identify and repair damaged wires or
poor connections between Main Control
Board and Inverter Board.
Check connections from Inverter
Board to Compressor
Are connections from Inverter
Board to Compressor intact?
no
Replace Compressor and
Inverter Board.
→
→
yes
no
no
Identify and repair damaged
wires or poor connections
between Inverter Board and
Compressor.
yes
Replace Main Control Board.
VCC Resistance Check
Check resistance between terminals 1 and
2, 2 and 3, 3 and 1.
If all resistances are equal,
compressor is operative.
Replace Inverter Board
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
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.
Motor
Gear
FREEZER ICE MAKER INFORMATION
TU
Water Fill Volume: The water fill adjustment screw will change the fill time. One full turn is equal to 20cc
(.68 oz.). The correct fill is 102 to 130cc (3.4 to 4.3 oz.). When a water valve is replaced, the fill volume
must be checked.
R
N
(Where Applicable)
Test Cycling: Remove cover by inserting screwdriver in notch at bottom and prying cover from housing. Use
screwdriver to rotate motor gear counterclockwise until holding switch circuit is completed. All components of ice
maker should function to complete the cycle.
If any green grounding wires are removed during servicing, they must be returned to their original position
and properly secured.
Water Fill
Adjustment
Mounting
Plate
Screws
Mounting
Plate
Screw
Timing
Gear
LED LIGHT WIRING
1
2
J9
3
4
LED
LED
RG-5
1
2
3
4
1
2
3
4
WHT/BLU
WHT/BLU
WHT/BRN
WHT/BRN
LED
J2
PIN 3
PIN 4
PIN 5
RG-3
RG-4
LH1
WHT/BRN
WHT/BRN
WHT/BLU
WHT/BLU
LED
LED
RG-2
RG-6
WHT/BLU
USER
INTERFACE
3
2
1
WHT/BRN
WHT/BRN
WHT/BLU
WHT/BLU
LED
LED
WHT/BRN
RG-1
RG-7
WHT
RED
FREEZER
EVAPORATOR
SENSOR
4
3
2
1
2
GRY/YEL
1
GRY/WHT
2
FREEZER
SENSOR
GRY/WHT
1
AT1
FRESH FOOD
SENSOR
REFRIGERATOR LEDS
MB1
2
PIN 4
PIN 7
1
PIN 1
PIN 8
4
3
2
1
WHT/BRN
WHT/BLU
WHT/BLU
FZ-1
4
PIN 2
1
PIN 1
2
PIN 3
YEL/WHT
RED/WHT
BRN/WHT
MB1
FREEZER LEDS
RED
COMPRESSOR
CONTROL SIGNAL
TYPICAL LED CONNECTOR
NEUTRAL
+5V DC
CAB. GROUND
+12V DC
BLK
RED/BLK
1
RL5
RL4
+5V DC
RL2
RL8
+5V DC
NEUTRAL
+12V DC
AT1
12V DC
DAMPER
MOTOR
RED/YEL
1
J1 2
3
LT. BLU
BASE PLATE
GROUND
BLK
U2 (SSR1)
MC1
J2 3
YEL/RED
7
J3 2
4
YEL/BLK
J2 6
J3 6
PIN 5
BRN/YEL
BLK/YEL
WHT/YEL
BLK/YEL
PIN 3
WHT/YEL
PIN 2
YEL/PNK
FREEZER DOOR
SWITCH
(DOOR OPEN)
YEL/PNK
BLK/ORN
BLK
MB1
PIN 4
PIN 5
BLK/PNK
INLINE CONNECTOR ABBREVIATION KEY
ABBR.
EXPLANATION
AT1 9 PIN CONNECTION AT AIR TOWER
5 PIN CONNECTION AT THE LEFT
LH1
DOOR UPPER HINGE
9 PIN CONNECTION IN THE MAIN
MB1 BOARD HOUSING BEHIND THE TOE
GRILLE
4 PIN CONNECTION IN THE MAIN
MB2 BOARD HOUSING BEHIND THE TOE
GRILLE
9 PIN CONNECTION IN THE
MC1 MACHINE COMPARTMENT TO THE
LEFT OF THE COMPRESSOR
2 PIN CONNECTION AT THE RIGHT
RH1
DOOR UPPER HINGE
LH1
MC1
FLIP MULLION COVER
RIGHT HINGE
GROUND
PIN 2
GRN/YEL
LT. BLU
LT.BLU/BLK
PIN 8
2
PIN 2
3
PIN 1
1
RH1
MULLION HEATER
PIN 6
LT. BLU
RED
CONDENSER FAN
FREEZER ICEMAKER
WATER VALVE
LT. BLU
MAIN INLET
WATER VALVE
YEL
GND
LINE
NEUTRAL
RL6
+12V DC
1
J2 5
2
BLK
PIN 1
YEL/BLU
BLK
PIN 3
LT. BLU
BRN
BLK/ORN
PIN 2
YEL/PNK
YEL/PNK
PIN 4
FREEZER
EVAPORATOR
HEATER
MB2
OUT1A
THERMAL
CUT-OUT
OUT2A
ERF2500++ISO
REFRIGERATOR
CONTROL
OUT2B
FREEZER DOOR
SWITCH
(DOOR OPEN)
4
FREEZER
ICE MAKER
(SEE FZ ICE
MAKER DIAGRAM)
OUT1B
3
YEL/BLU
2
1
GRN/YEL
COIL COVER
GROUND
BEHIND FRONT
LEFT ROLLER
+5V DC
BOARD VIEW
BOARD-MOUNTED
AMBIENT THERMISTOR
1
J8
2
RH1
GRN/YEL
RIGHT DOOR
FLANGE
PIN 3
LT.BLU/BLK
+12V DC
12
J5
8
YEL/PNK
YEL/PNK
VARIABLE SPEED
COMPRESSOR/ INV.
12 VDC
GRN/YEL
GRN/YEL
+12V DC
5
6
J5
3
4
RED/YEL
BRN/YEL
LT. BLU
CONTROL SIGNAL
RED/BLK
BLK/WHT
1
PIN 6
BLK
BLK
YEL
11
12
BLK/WHT
2
+5V DC
3
4
5
6
7
J4
8
9
WHT/BRN
EVAPORATOR
FAN (DC)
LED
GRY/BLK
WHT/RED
WHT/GRN
WHT/GRN
WHT/RED
WHT/RED
4
WHT/GRN 3
2
WHT/RED 1
WHT/RED
LED
GRY/BLK
WHT/GRN
WHT/GRN
FZ-2
COMM.
7
8
9
J6
10
11
12
GRY/YEL
POWER
LT. BLU
GND
LINE
4
3
2
1
COMPRESSOR
GROUND
PIN 1
4
3
2
1
WHT/BRN
WHT/BRN
WHT/BLU
WHT/BLU
BLK
AC SIDE
PIN 4
4
3
2
1
WHT/BRN
WHT/BRN
WHT/BLU
WHT/BLU
DC SIDE
PIN 5
4
3
2
1
WHT/BRN
WHT/BRN
WHT/BLU
WHT/BLU
BASE PLATE
GROUND
RIBBED
(NEUTRAL)
NON-RIBBED
(LINE)
POWER CORD
J9
+5V DC
J10
2 4
FRONT INSIDE
VIEW
J1
1 3
J11
1 4
RL1
RL2
1
AT1 & MB1
3
BACK VIEW
9
3
9
AT1
7
1
1
7
2
4
3
1
1
MC1
MB1
MB2
9
7
9
7
5
2
4
1
3
1
RL3
RL6
RL8
2
2
1
1
1
2
J8
AMBIENT
TEMP
SENSOR
1
J4
RL9
J3
RH1
3
12
RL5
1
LATCH
11
J6
J2
5
CATCH
1
MC1
3
LH1
MB2
1
1
J7
U2 RL4
RL7
J5
1
1
Wire Diagram A01536901