Wiring Diagram

SERVICE DATA SHEET
A01461104
ICE & WATER - AUTOMATIC DEFROST
SIDE BY SIDE - R134a
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.
DIAGNOSTIC MODE
Activate: Press ^ and V temperature pads for up to 10 sec. simultaneously. Press + to advance through tests.
Deactivate: Press + for up to 10 sec. Diagnostic Mode will automatically deactivate after 5 min. of inactivity.
Note: Silence alarm.
• 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 flow 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 “+”
blinking on FF display side to show location.
28 Dispenser Paddle Press disp. paddle “on” on UI when depressed; “off” when released
46 Humidity Sensor Activates automatically “OP” if open, “SH” if short
AC Heater System: Displays %RH
DC Heater System: “HI” – heater should be on
“Lo” – heater should be off
%RH is displayed when humidity is between “Lo” and “HI” values;
heater could be on or off.
47* Dispenser
Pocket Heater
Press set AC Heater System: “--” ; test not available
DC Heater System: heater on when “on”, off when “off”
1* Standard Compressor
and Condenser Fan
Press set Compressor and Condenser Fan running when “on”; stopped when “off”
2 Defrost Heater Press set Defrost limit switch must be closed; verify “CL” in test 26.
Feel for heat from defrost heater when “on”.
If “OP” in test 26, heater will not activate.
8 Water Valve
(Dispenser)
Press set Be prepared to collect water at dispenser.
Water dispenses when “on”; stops when “off”
10 Auger Motor Press set FZ door must be closed.
Motor running when “on”; motor stopped when “off”
11 Cube/Crush
Solenoid
Press set Do not leave solenoid in activated state.
Solenoid activated when “on”; deactivated when “off”
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”
13 FF Light (LED Models) Press set FF Lights on when "on"; off when "off"
15 Evaporator Fan Press set Fan running for minimum of 10 sec. when “LO” or “HI”; stopped when
“off”. Feedback failure if fan starts but runs less than 10 sec. Listen for
speed change from “LO” to “HI”.
20 FZ Light (LED Models) Press set FZ Lights on when "on"; off when "off"
22 Damper Press set With inspection mirror, observe damper open when “OP”; closed when “CL”
36 Ice Chute Door Depress ice chute
door or press set
“OP” on UI when manually opened; “CL” when closed. Or, using “set”,
“OP” on UI when fully opened or "CL" when fully closed by the motor.
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
29 FF Thermistor Activates automatically UI shows temperature sensed by FF thermistor; pass if within 10°F of
temperature measured with gauge at mid-level 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 tempera-
ture measured with gage 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
34 Ambient Thermistor
@ UI
Activates automatically UI shows temperature sensed at UI; pass if within +20°F/-10°F of tem-
perature measured with gauge at UI location. “OP” if open; “SH” if short
39 Evaporator Thermis-
tor
Activates automatically UI shows temperature sensed at main board; pass if within +20°F/
-10°F of temperature measured with gauge at evaporator thermistor
location. “OP” if open; “SH” if short
0- Firmware Parameters Press set Displays digit sequence; record
2- Main Board Firmware Press set Displays digit sequence; record
4- UI Firmware Press set Displays digit sequence; record
ERROR CODES SPECIAL MODES
Display
Interpretation Mode
Display Activate/Deactivate
(press for up to 10 sec. simultaneously)
FZ FF FZ FF
-- OP Open FF
mid-level thermistor
Manual
Defrost
d F + and -/same to deactivate
OP -- Open FZ thermistor Display/
Showroom
77 77 ^ and -/set
Sabbath Sb Sb
V and +/same to deactivate
-- SH Shorted FF
mid-level thermistor
Diagnostic No FF or FZ display,
all UI LEDs on.
^ and V/+ to deactivate
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.
SH -- Shorted FZ thermistor
SY CF
UI to Main Control
Board communication
failure; on start up
SY CE UI Main Control Board
communication error;
after a period in operation
SY EF Evaporator fan failure
IMPORTANT: PLEASE RETURN THIS SHEET TO ITS ORIGINAL LOCATION
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.
PERFORMANCE DATA NO LOAD & NO DOOR OPENINGS AT
0° F FREEZER & 37° F FRESH FOOD (2500 ++ ISO)
Type A with Run/
Start Capacitor
65°F (18°C) Ambient 90°F (32°C) Ambient
Variable Speed Standard Variable Speed Standard
Operating Time 74 to 84% 32 to 40% 100% 55 to 65%
Freezer
Temperature
-2° to 2° F
-19° to -17° C
0° to 4° F
-18° to -16° C
-1° to 3° F
-18° to -16° C
-1° to 3° F
-18° to -16° C
Refrigerator
Temperature
34° to 39° F
1° to 4° C
34° to 39° F
1° to 4° C
34° to 39° F
1° to 4° C
34° to 39° F
1° to 4° C
Low Side Pressure
(cut-in)
5 to 12 psig
43 to 83 kPa
5 to 12 psig
43 to 83 kPa
N/A
5 to 12 psig
43 to 83 kPa
Low Side Pressure
(cut-out)
-2 to 2 psig
-14 to 14 kPa
-2 to 2 psig
-14 to 14 kPa
-2 to 2 psig
-14 to 14 kPa
-2 to 2 psig
-14 to 14 kPa
High Side Pressure
(last
1
/
3
cycle)
90 to 105 psig
621 to 724 kPa
90 to 115 psig
621 to 793 kPa
120 to 135 psig
827 to 931 kPa
130 to 155 psig
896 to 1069 kPa
Wattage
(last
1
/
3
cycle)
50 to 60 90 to 130 60 to 70 100 to 140
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)
DEFROST SPECIFICATIONS
Cabinet Size
Thermal Cut-out Heater Defrost Thermistor
Termination
Cut-in Cut-out Watts Ohms Cut-out
23’ CD, 26’ SD 110° F (43.3° C) 135° F (52.2° C) 450 30 48° F (8° C)
CONDENSER FAN MOTOR
Watts RPM Amps
3.1 1100 CW Opposite Shaft 0.03 Running
Replace Inverter
→ Check at the connector
from main control into
the inverter (typically
BLK and RED wires)
Is Inverter receiving
10-15 VAC
and 1-5 VDC from
Main Control?
→ Check at Main Control
Board
(BLK/WHT and RED/BLK wires)
Is Main Control
sending 10-15 VAC
and 1-5 VDC to
Inverter?
no
→ Check at the connector from
the service cord into the
inverter (typically PUR and
WHT wires.)
Is Inverter receiving 115
VAC from power supply?
yes
• Check voltage supply.
• Check and repair
service cord wiring
and connections.
no
Identify and repair
damaged wires or poor
connections between
Main Control and
Inverter
yes
→ Remove inverter box
from the compressor
and check resistance
across compressor
winding pairs as shown.
Is resistance across
all winding pairs
equal?
yes
Replace Compressor
no
→ Check connections
from Inverter to
Compressor
Are connections
from Inverter to
Compressor intact?
yes
yes
Identify and repair
damaged wires or poor
connections between
Inverter and Compressor.
no
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 Main Control
no
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.
Water Fill Volume
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 fill size; turn the screw counterclockwise to increase the fill size. One
turn equals approx 20cc (0.68 oz). The correct fill is 85 to 95cc (2.75 to 3.25 oz). When a
water valve is replaced, check the fill volume.
T
U
R
N
Mounting
Plate
Screws
Mounting
Plate
Screw
Motor
Gear
Timing
Gear
Water Fill
Adjustment
Ice Maker
ON/OFF
Switch
ICE MAKER SPECIFICATIONS
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
2 Yellow Water Valve
3 Black Line
4 Light Blue Neutral