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SERVICE DATA SHEET

A06021901

ICE & WATER - AUTOMATIC DEFROST

BOTTOM FREEZER - 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.

POWER

ICE MAKER

CE MAKER

ICE MAKER

WATER VALVE

LINE

THERMAL

CUT-OUT

HOLD

SWITCH

THERMOSTAT

SHUTOFF

SWITCH

WATER FILL

SWITCH

MOLD HEATER

MOLD

MOUNTING

PLATE

165 WATTS

MOTOR

NEUTRAL

BLK

BLU

YELLOW

BRN

RED

GRN / YEL

RED

LT. BLUE

P-3

P-1

P-2

P-4

ICE MAKER

LT. BLUE

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

Operating Time

90 to 100% 100%

Freezer Temperature

-5° to 2°F

(-20° to -17°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)

Low Side Pressure

-2 to 6 psig

(-14 to 41 kPa)

-2 to 6 psig

(-14 to 41 kPa)

High Side Pressure

(last 1/3 cycle)

85 to 105 psig

(586 to 724 kPa)

120 to 135 psig

(827 to 931 kPa)

Wattage (last 1/3 cycle) 30 to 50 50 to 70

Amps (running)

.4 to .8 .7 to .9

Base Voltage 115 vac (127 vac max)

DEFROST SPECIFICATIONS

Cabinet Size:

27’ & 28’ SD,

22’ CD

Thermal Cutout Heater Defrost

Thermistor

Termination

Cut-in Cut-out Watts Ohms Cut-out

Freezer

110°F

(43.3°C)

135°F

(57.2°C)

500 26.5 48°F

(8°C)

Fresh Food

Ice Maker

110°F

(43.3°C)

135°F

(57.2°C)

70 188.9 68°F

(20°C)

Electronic Timer - (ADC) Defrost 24 minutes every 6-96 hours of compressor run time.

CONDENSER FAN MOTOR

Watts RPM Amps

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

ERROR CODES SPECIAL MODES

Display

Interpretation Mode

Display Activate Deactivate

FZ FF FZ FF (press for up to 10 sec. simultaneously)

-- OP Open FF Cavity

Thermistor

Manual Defrost d F FF + and FF - Same to deactivate

OP -- Open FZ Cavity

Thermistor

Demo / Showroom 77 77 FZ + and FF - Unplug to deactivate

-- SH Shorted FF Cavity

Thermistor

Sabbath Sb Sb FZ - and FF - Same to deactivate

SH -- Shorted FZ Cavity

Thermistor

System Diagnostic No FF or FZ display,

all UI LEDs on

FZ + and FF - Press and hold FF +

to deactivate

SY CF UI to Main Board

communication failure;

on start up

Current Air Temps FZ Temp FF Temp FZ - and FF +

and Water

Automatically

after 10 sec

SY CE UI to Main Board

communication error;

after a period in operation

FFIM Diagnostic Numerical display of

ﬁrst test

FZ + and FF + Press and hold FF +

to deactivate

SY EF Freezer Evaporator Fan

Failure

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.

FRESH FOOD ICE MAKER DIAGNOSTIC MODE

Activate: Press FZ UP and FF UP temperature pads for up to 10 sec. simultaneously.

Press FF UP or FF DOWN to move forward or backward through tests.

Deactivate: Press FF UP for up to 10 sec. FFIM Diagnostic Mode will automatically deactivate after 5 min. of inactivity.

NOTE: Silence alarm.

Test To activate test Passing Result

52C Ice Maker Thermistor Activates

automatically

FZ display shows temperature sensed by Ice Maker Thermistor.

“OP” if open; “SH” if short

55C Water Valve Press power

on-off

Remove ice tray to collect water into a measuring container to measure water ﬁll.

If collecting water into ice tray, ﬁrst perform test 63C to empty ice tray.

57C Evaporator Fan (FFIM) Press power

on-off

“On” on FZ display when fan activated, “OFF” when deactivated.

58C

Ice Level Sensor Activates

automatically

Remove ice bucket.

Allow bail arm to drop freely. Pass if no alarm when tray returns to “home” position.

Hold bail arm up. Pass if alarm sounds when tray returns to “home” position.

This test runs continuously until another test is selected.

63C Twist Tray Press power

on-off

Remove ice bucket.

FZ display shows “1” and “GOOD”.

IMPORTANT: PLEASE RETURN THIS SHEET TO ITS ORIGINAL LOCATION.

SYSTEM DIAGNOSTIC MODE

Activate: Press

FZ UP

and

FZ DOWN

for up to 10 sec. simultaneously. Press

FF UP

to advance through tests.

Deactivate: Press

FF UP

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 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.

Test To activate test: Passing result

-- First Screen -- All LEDs on UI illuminated, except digit displays.

-- Second Screen -- All segments of UI digit displays illuminated.

-- Third Screen -- Blank UI display, no LEDs illuminated.

28 Dispenser Paddle Press disp. paddle “on” on UI when depressed; “off” when released

34 Ambient Thermistor

@ UI

Activates automatically UI shows temperature sensed at UI; Pass if within +20˚F/-10˚F of temperature

measure with gauge at UI location. “OP” if open; “SH” if short.

46 Humidity Sensor Activates automatically “OP” if open, “SH” if short. AC Heater System: Displays %RH. DC Heater Sys-

tem: “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 power on-of Heater on when “on’ off when “off”.

2 Freezer Defrost Heater Press power on-off Freezer defrost heater on when “on”; off when “off”. Evaporator thermistor

temperature is ﬂashed. Watch for temp increase with the heater on. It may

take a few minutes for the evaporator to heat up.

3 FF Lights powered by

external board

Press power on-off FF lights on when “on”; off when “off”

8 Water Valve

(Dispenser)

Press power on-off FF door must be closed. Be prepared to collect water at dispenser.

Water dispenses when “on”; stops when “off”

10 Auger Motor Press power on-off FF door must be closed. Motor running when “on”; motor stopped when “off”

11 Cube/Crush Solenoid Press power on-off FF door must be closed. Do not leave solenoid in activated state.

Solenoid activated when “on”; deactivated when “off”.

12 Condenser Fan Press power on-off Fan running when “on”; stopped when “off”

41 Perfect Temp Drawer

(PTD)

Press power on-off PTD UI illuminated when “on”, off when “off”

43 Mullion Anticondensa-

tion Heater

Press power on-off Flip mullion heater on when “on”; off when “off”

38 VCC Compressor Press power on-off Compressor running when “on”; off when “off”

15 Freezer Evapora-

tor Fan

Press power on-off Press to toggle between “off”, “LO” and “HI”. A current sensor reading is ﬂashed

(units are not mA). OFF reading should be around 2. “LO” speed reading should

settle down to around 9. “HI” speed reading should settle down above 40.

20 FZ Lights Press power on-off FZ lights on when “on”, off when “off”

22 Damper Press power on-off Perform test 15 and set fan to “HI”. Then check for air ﬂow when open “OP”; and

no air leaks when closed “CL”

36 Ice Chute Door Depress ice chute door

or press power on-off

“OP” on UI when manually opened; “CL” when closed . Or using “power on-

off”, motor drive door open “OP” or closed “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 Ice Maker Defrost

Heater

Activates automatically Heater is turned on automatically. The ice maker evaporator thermistor tem-

perature is ﬂashed. Watch for temp increase with the heater on. It may take a

few minutes for the evaporator to heat up.

29 FF Thermistor Activates automatically UI shows temperature sensed by FF thermistor; pass if within 10°F of tempera-

ture 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 tem-

perature measured with gauge at main board location. “OP” if open; “SH” if short

39 Freezer Evaporator

Thermistor

Activates automatically UI shows temperature sensed by freezer evaporator thermistor; pass if

within 10°F of temperature measured with gauge at evaporator thermistor

location.“OP” if open; “SH” if short

45 Ice Maker Mold

Thermistor

Activates automatically UI shows temperature sensed at ice maker; pass if within +20°F/-10°F of tem-

perature measured with gauge at ice maker mold. “OP” if open; “SH” if short

68 Ice Maker 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

0- Firmware Parameters Press power on-off Displays digit sequence; record

1- Main Board Firmware Press power on-off Displays digit sequence; record

3- UI Firmware Press power on-off Displays digit sequence; record

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.

Mounting

Plate

Screws

Mounting

Plate

Screw

Motor

Gear

Timing

Gear

Water Fill

Adjustment

FREEZER ICE MAKER INFORMATION

(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 compo-

nents of ice maker should function to complete the cycle.

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.

Service Mode For Perfect Temp™ Drawer

Activation

This mode is accessible only

when the drawer is in OFF

mode. Press and hold the

temperature decrease key

(–) and the temperature in-

crease key (+) for 5 seconds.

Deactivation

Press and hold the tempera-

ture (+) key for 5 seconds, or

no keys pressed in 5 minutes

returns to the OFF mode of

operation.

Test Operation

The up/down buttons

will be used to navigate

through the tests and the

ON/OFF button will be used

to initiate the displayed test.

Fan Test

Display shows “F1” for fan

on or “F0” for fan off.

Heater Test

Display shows “H1” for heater

ON or “H0” for heater OFF.

Damper Test

Display shows “d1” for

damper open, or “d0”

for damper closed.

Damper movement

may take 30 seconds.

To Test Damper

1. Remove drawer.

2. Start damper test.

3. Observe damper

moving open and

closed.

4. Exit damper test.

Report NTC Temperature

Test

Display shows “b1” for cham-

ber sensor

test. The UI display will show

—°F until the main board

responds with associated

sensor temperature reading.

Display Test

“L0” for display test. The display

test will cycle through all the dis-

play segments with a minimal

on time for each segment.

Fault Codes Listed on Diagram Sheet

FRESH FOOD ICE MAKER FILL TIME ADJUSTMENT MODE

NOTE: First consider water ﬁlter condition before adjusting ﬁll time.

Activate: Press and hold the Water and Crush pads for up to 10 seconds.

Press FF + or FF - to adjust between the 3 ﬁll settings.

Deactivate: Exits automatically after 10 seconds, or press any button other than + or -.

Display

Description

FZ FF

ICE

− Min Fill Time (default)

= Mid Fill Time

= Max Fill Time

Replace Inverter Board

→ Check at Inverter Board on

Compressor

(BLK and RED wires)

Is Inverter Board receiving 10-15

VAC and 1-5 VDC from Main

Control Board?

→ 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?

→ Check at the connector from the power cord

harness into the inverter board, located in

the machine compartment.

(PUR and WHT wires)

Is Inverter Board receiving 115 VAC

from power supply?

• Check voltage supply.

• Check and repair power

cord harness wiring and

connections.

Identify and repair damaged wires or

poor connections between Main Control

Board and Inverter Board.

yes

→ Remove inverter box from the

compressor and check resistance

across compressor winding pairs as

shown.

Is resistance across all winding

pairs equal?

Replace Compressor and

Inverter Board.

→ Check connections from Inverter

Board to Compressor

Are connections from Inverter

Board to Compressor intact?

yes

Identify and repair damaged

wires or poor connections

between Inverter Board and

Compressor.

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 Board.

yes yes

yes

VCC COMPRESSOR MOTOR RESISTANCE CHECK

1 2

Résumé du contenu

Page 1 - CAUTION

SERVICE DATA SHEET A06021901ICE & WATER - AUTOMATIC DEFROSTBOTTOM FREEZER - R134a CAUTIONAll electrical parts and wiring must be shielded f

Page 2 - Wire Diagram A06687801

ERF2500++ISOREFRIGERATORCONTROLRIBBED(NEUTRAL)NON-RIBBED(LINE)COMPRESSORGROUNDRH LIGHTSWITCH(DOOR OPEN)LH LIGHTSWITCH(DOOR OPEN)PUR/BLK (N/O)PURPLE (C

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