Frigidaire FPBS2777RF Wiring Diagram

SERVICE DATA SHEET

A02858901

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.

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

110°F

(43.3°C)

135°F

(57.2°C)

500

26.5

39°F

(4°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

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.

SYSTEM DIAGNOSTIC MODE

Activate:

Press

FZ +

and

FZ -

for up to 10 sec. simultaneously.

Press FF + to advance through tests.

Deactivate:

Press FF + 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 on the side of the door 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

--

Blank on both UI displays, no lights illuminated, no shadowing.

--

Second Screen

--

All LED lights on both UIs illuminated.

--

Third Screen

--

Blank on both UI displays, no lights illuminated, no shadowing.

28

Dispenser Paddle

Press disp. paddle

“on” on side UI when depressed. “Water” is illuminated on front UI; “off”

when released.

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.

“Cubes” is illuminated on front UI.

46

Humidity Sensor


“OP” if open, “SH” if short.

Displays %RH.

“Crushed is illuminated on front UI.

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 will drive door open “OP” or closed “CL”.

47

Dispenser

Pocket Heater

Press power on-off

Heater on when “on”, off when “off”.

66

Dispenser Light

Press power on-off

Dispenser light on when “on”, off when “off”.

6

-

Front UI Firmware

Press power on-off

Displays digit sequence; record.

2

Freezer Defrost

Heater

Press power on-off

Freezer 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”

8

Water Valve

(Dispenser)

Press power on-off

FF doors must be closed.

Be prepared to collect water at dispenser.

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

9*

FZ Light

(Incandescent Models)

Press power on-off

FZ lights on when “on”, off 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

VCC Condenser Fan

Press power on-off

Fan running when “on”; stopped when “off”.

43

Flip Mullion 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”; stopped when “off”.

13*

FF Light (LED Models)

Press power on-off

FF lights on when “on”; off when “off”.

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.

26

Ice Maker

Defrost Heater


Relay is activated automatically. If “CL” is shown, defrost limit switch is

closed and heater should be heating up. If “OP” is shown, defrost limit

switch is open and heater will not activate.

29

FF Thermistor


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


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


UI shows temperature sensed at main board; pass if within +20°F/-10°F

of temperature measured with gauge at main board location.


39

Evaporator

Thermistor


UI shows temperature sensed by evaporator thermistor; pass if within 10°F

of temperature measured with gauge at evaporator thermistor location.


0-

Firmware Parameters

Press power on-off


2-

Main Board Firmware

Press power on-off


4-

UI Firmware

Press power on-off


Variable Capacity Compressor (VCC) Diagnostics (select models)

If test 38 fails, diagnose as follows:

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?

no

→

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.

no

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.

no

→

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.

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 Board.

no

yes

yes

yes

ERROR CODES

SPECIAL MODES

Display

Interpretation

Mode

Display

Activate/Deactivate

(press for up to 10 sec. simultaneously)

FZ

FF

FZ

FF

--

OP

Open FF Thermistor

Manual Defrost

d

F

FF + and FF - / same to deactivate

OP

--

Open FZ Thermistor

Display / Showroom

77

77

FZ + and FF - / Power-on-Reset (POR)

--

SH

Shorted FF Thermistor

Sabbath

Sb

Sb

FZ - and FF + / same to deactivate

SH

--

Shorted FZ Thermistor

System Diagnostic

No FF or FZ display,

all UI LEDs on.

FZ + and FZ - / FF + to deactivate

SY

CF

UI to Main Control

Board communication

failure; on start up

FFIM Diagnostic

Numerical display of

first test

FZ + and FF +

together to activate /

press and hold FF + to deactivate

SY

CE

UI to Main Control

Board communication

error; after a period

in operation

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

FRESH FOOD ICE MAKER DIAGNOSTIC MODE

Activate:

Press FZ + and FF + temperature pads for up to 10 sec. simultaneously.

Press FF + or - to move forward or backward through tests.

Deactivate:

Press FF + 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.

T

U

R

N

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 hous-

ing. Use screwdriver to rotate motor gear counterclockwise until holding switch circuit is completed. All

components 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.

Frigidaire FPBS2777RF Wiring Diagram

Frigidaire FPBS2777RF Manual

Frigidaire FPBS2777RF manual content summary: