Electrolux WHE7074SA Manuale utente

WHE7074SA 925060317-00

Diagnostics Procedure

-Double Freezer Westinghouse French Door

Version Status Date Created/

Modified by

Comment

1first edition 11/06/2018 Warren Steele

modified from documents provided by

NICOLA BEGGIO

MODEL: WHE7074SA Diagnostic Manual

ARESI1004 Issue 1

UI Functional Areas

The image below shows the following functional areas:

Light guide windows: Area through which light will be conducted to light the first surface Icons.

MODEL: WHE7074SA Diagnostic Manual

ARESI1004 Issue 1

Westinghouse

1. Overview

Cobalt is a user interface (UI) to be control a French door/Multi door product.

This UI is responsible to control the cavities, functions and the dispenser (I&W).

1.1. First Surface UI – Overlay

The images below are to be used as a reference of the artwork overlay that

would be used as first surface UI.

MODEL: WHE7074SA Diagnostic Manual

ARESI1004 Issue 1

Capacitive touch areas: Areas that will be sensitive to the touch of the user.

Diagnostic Mode (Service Mode): Notes

While in Diagnostic Mode:

1. The heater will run during test but only upto 44 degrees via the

sensor

2. the heater will revert to off mode if diagnostics is progressed

3. do not run valves and solenoids for more then 1 min at a time

4. whilst testing the heater and sensor the value will be displayed in

fridge section and alternate between value and statas

How to enter The Diagnostic Mode:

To enter The diagnostic mode, press and hold "+"(freezer) and "–"(freezer) buttons for 10

seconds during the normal runtime of the appliance

MODEL: WHE7074SA Diagnostic Manual

ARESI1004 Issue 1

Behavior in Diagnostic Mode:

To enter diagnostic mode, press and hold

+ (freezer)

and

– (freezer)

for

10 seconds.

On detection of 10-sec-holding of above buttons, all the Display LEDs on the External UI

Turn on & a beep tone will be heard

Press

(Refrigerator) + button

to progress through the different loads.

Press

(Refrigerator) – button

to come back to previous function.

Press

(CUBE) button

to change the status of the load.

Each load is associated with a number indicated in the Freezer Display and the Status is

shown in the Refrigerator Display. (See Service mode table below for details.)

Note: When there is the request to visualize some extra information more than the status of

the load (ex: freezer defrost heater and freezer defrost evaporator temperature), the

visualization on the displays is performed in this way:

•Freezer Display: N°item

•whilst testing the heater and sensor the value will be displayed in the fridge section

and alternate between value and status

8. To EXIT from diagnostic mode, press and hold + (freezer) and – (freezer) buttons for 10

seconds. The appliance will restart in normal mode.

stages in order during the Diagnostic Mode:

N° Function Test Actions

Availible Behavior Expected

Test

- First Push "+" -

a. TurnsOn all the LED's of the Display

- Initial diagnostic start up

a. Turns Off all the LED's of the Display

Freezer Display Refrigerator Display

MODEL: WHE7074SA Diagnostic Manual

ARESI1004 Issue 1

Freezer

Defrost

Heater

Press (CUBE) to

change the status of

the load

a. Heater on when “on”, off when “oF”.

b. Freezer Evaporator Defrost Sensor

temperature is flashed on refrigerator

display.

c. Watch for temperature increase with the

heater on.

d. It may take a few minutes for the

evaporator to heat up. Maximum 5

minutes ON or 45°C Freezer Evap

Defrost Sensor threshold.

e. Press (CUBE) button to change the

status

Main Valve

Press (CUBE) to

change the status of

the load

a. Main valve (faucet) is activated when

“on”; stops when “oF”

b. Press (CUBE) button to change the

status

Cube/Crush

Solenoid

Press (CUBE) to

change the status of

the load

a. Do not leave solenoid activated for

more than 1 minute. It is forced

automatically to off after 1 minutes of

continuous on.

b. Solenoid activated when “on”,

deactivated when “oF”.

c. Press (CUBE) button to change the

status

Water Valve

Dispense +

Main Valve

Press (CUBE) to

change the status of

the load

c. Be prepared to collect water at

dispenser.

d. Water dispenses when “on”; stops when

“oF”.

e. Press (CUBE) button to change the

status

Ice Maker

Water Valve+

Main Valve

Press (CUBE) to

change the status of

the load

Remove ice tray

to collect water into

a measuring container to measure

water fill.

b. If collecting water into ice tray, first

perform test n°50 to empty ice tray.

c. Water flows in the tray when “on”; stops

when “oF”.

d. Press (CUBE) button to change the

status

Fresh Food

Defrost

Heater

Press (CUBE) to

change the status of

the load

a. Heater on when “on”, off when “oF”.

b. Fresh Food Evaporator Defrost Sensor

temperature is flashed on refrigerator

display.

c. Watch for temperature increase with the

heater on.

d. It may take a few minutes for the

evaporator to heat up. Maximum 5

minutes ON or 45°C Fresh Food Evap

Defrost sensor threshold.

status

e. Press (CUBE) button to change the

MODEL: WHE7074SA Diagnostic Manual

ARESI1004 Issue 1

Displayed

code

Function test Actions Availible Behaver Expected

Ice Maker

Defrost

Heater

Press (CUBE) to

change the status of

the load

a. Heater on when “on”, off when “oF”.

b. IceMaker Evaporator Defrost Sensor

temperature is flashed on refrigerator

display.

c. Watch for temperature increase with the

heater on.

d. It may take a few minutes for the

evaporator to heat up. Maximum 5

minutes ON or 45°C IM Evap Defrost

Sensor threshold.

e. Press (CUBE) button to change the

status

74 VCZ Balance

Heater

Press (CUBE) to

change the status of

the load

a. Heater on when “on”, off when “oF”.

b. Maximum 5 minutes ON continuous.

c. Press (CUBE) button to change the

status.

Fill Tube

Heater

Press (CUBE) to

change the status of

the load

a. Heater on when “on”, off when “oF”.

b. Maximum 5 minutes ON continuous.

c. Press (CUBE) button to change the

status.

Auger Motor

Press (CUBE) to

change the status of

the load

Fresh Food door must be closed.

b. Motor running when “on”; motor stopped

when “oF”

c. Press (CUBE) button to change the

status.

Fresh Food

Light

Press (CUBE) to

change the status of

the load

a. Fresh Food lights on when “on”, off

when “oF”

b. Press (CUBE) button to change the

status.

Light

Press (CUBE) to

change the status of

the load

a. VCZ light on when “on”, off when “oF”

b. Press (CUBE) button to change the

status.

Freezer

Evaporator

Fan

Press (CUBE) to

change the status of

the load

MODEL: WHE7074SA Diagnostic Manual

ARESI1004 Issue 1

Displayed

Function test Actions Availible Behaver Expected

code

Step "74" is skipped

in this model

a. It is possible to run the Freezer Evap Fan

at 3 possible speeds.

b. Fan runs on maximum speed when “on”;

medium speed when “nL”; stopped when

the “oF” is displayed

c. Press (CUBE) button to change the

status.

d. In case of

Locked rotor condition

the

refrigerator display shows “Lc”

e. In case of absence of PWM signal that

provide duty cycle, the refrigerator

display shows “Ns” when the fan is

“OF”.

f. In case of absence of 12V signal or

GND signal, the refrigerator display

shows “Np” when the fan is “on” or “Mi”.

VCZ

Fan

Press (CUBE) to

change the status of

the load

a. It is possible to run the VCZ Fan at 3

possible speeds.

b. Fan running maximum speed when “on”;

medium speed when “nL”; stopped when

the “oF” is displayed

c. Press (CUBE) button to change the

status.

Condenser

Fan

Press (CUBE) to

change the status of

the load

a. It is possible to run the Condenser Fan at

3 possible speeds.

b. Fan running maximum speed when “on”;

medium speed when “nL”; stopped

when “oF” is displayed

c. Press (CUBE) button to change the

status.

d. In case of Locked rotor condition the

refrigerator display shows “LC”

e. In case of absence of PWM signal that

provide duty cycle, the refrigerator

display shows “nS” when the fan is

“OF”.

f. In case of absence of 12V signal or

GND signal, the refrigerator display

shows “nP” when the fan is “on” or “Mi”.

Freezer Light

Press (CUBE) to

change the status of

the load

a. Freezer light on when “on”, off when

“oF”

b. Press (CUBE) button to change the

status.

VCC

Compressor

Press (CUBE) to

change the status of

the load

a. Compressor is running at maximum

speed when “on”, it is stopped when

“oF”.

b. Press (CUBE) button to change the

status.

Ice Chute

Heater

Press (CUBE) to

change the status of

the load

c. Chute Heater is activated when “on”,

deactivated when “oF”.

d. Press (CUBE) button to change the

status.

MODEL: WHE7074SA Diagnostic Manual

ARESI1004 Issue 1

Displayed

Function test Actions Availible Behaver Expected

code

Step "17" is skipped

in this model

Icemaker

Evaporator

Fan

Press (CUBE) to

change the status of

the load

a. ”on” is showed in the refrigerator display

when icemaker evap fan is activated,

“oF” is showed when the fan is

deactivated.

b. Press (CUBE) button to change the

status.

Flip

Mullion

Heater DC

Press (CUBE) to

change the status of

the load

a. DC Flip Mullion Heater is activated

when “on”, deactivated when “oF”

b. Press (CUBE) button to change the

status.

Dispenser

Light

Press (CUBE) to

change the status of

the load

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

“oF”

b. Press (CUBE) button to change the

status.

Fresh Food

Evaporator

Fan

Press (CUBE) to

change the status of

the load

a. It is possible to run the Fresh Food

Evaporator Fan at 3 possible speeds.

b. Fan running maximum speed when “on”;

medium speed when “nL”; stopped

when “oF”

c. Press (CUBE) button to change the

status.

d. In case of Locked rotor condition the

refrigerator display shows “LC”

e. In case of absence of PWM signal that

provide duty cycle, the refrigerator

display shows “nS” when the fan is

“OF”.

f. In case of absence of 12V signal or

GND signal, the refrigerator display

shows “nP” when the fan is “on” or “Mi”.

VCZ Damper

Heater

Press (CUBE) to

change the status of

the load

a. VCZ Damper Heater is activated when

“on”, deactivated when “oF”.

b. Press (CUBE) button to change the

status.

DC Diverter

Valve for

Icemaker

Press (CUBE) to

change the status of

the load

a. DC diverter Icemaker Valve moves to

icemaker position when “on” and come

back to normal position (water

dispenser) when “oF”.

b. Press (CUBE) button to change the

status

DC Water

Pump

Press (CUBE) to

change the status of

the load.

a. DC Water Pump is piloted and it is

possible to have 3 states.

b. When pump is stopped “oF” is showed.

Then you have reverse piloting

displaying “rv”.

MODEL: WHE7074SA Diagnostic Manual

ARESI1004 Issue 1

Displayed

Function test Actions Availible Behaver Expected

code

Step "76" is skipped

in this model

The third state is when pump moves in

forward direction displaying “Fw”.

c. Press (CUBE) button to change the

status

VCZ Damper

Press (CUBE) to

change the status of

the load

automatically

turned on the

Freezer Evaporator Fan at maximum

speed.

b. When VCZ Damper is open it shows

“OP”, when close it shows “CL”.

c. Then check for air flow when damper is

fully open “OP”; and no air leaks when

fully closed “CL”.

d. During the movement of damper, it

blinks a “1”.

e. If the Freezer evaporator fan presents

some errors during its movement, it is

alternatively displayed the error status of

the fan (LC, nS, nP) and the status of

the damper (OP, CL).

f. Press (CUBE) button to change the

status and open/close the damper.

Ice Chute

Door/ Ice

Flapper

Motor

Press (CUBE) to

change the status of

the load and moves

the flapper motor.

a. When the flapper motor is closed, it

shows “CL”.

b. When the ice chute door is opened, it

shows “OP”.

c. During the movement of the flapper

motor, it blinks a “1”.

d. The tentatives of opening/closing the ice

chute door are performed recursively for

3 consecutive times and in case of

failure it shows “Er”.

e. Press (CUBE) button to change the

status.

Icemaker

Twist Tray

Harvest Test

Press (CUBE) to

change the status of

the load and start the

rotation.

Remove the Ice Bucket

in order to

see clearly the rotation of the ice tray.

b. On Refrigerator Display it shows “Go”

when the tray find the home position

(Horizontal position).

c. During the rotation of the ice tray, it

blinks on the display “1”.

d. In case of failure at the end of the

twisting action it shows “Er”.

e. Press (CUBE) button to change the

status and start the rotation.

Ice

Maker

Tray Bail

Arm/ Ice

Level Bucket

Press (CUBE) to

change the status of

the load

a. Remove the Ice Bucket in order to

see clearly the status of the ice tray

bail arm..

b. Allow bail arm to drop freely. It shows

“Em” (empty) when tray returns to

“home” position.

Continue......... next page

MODEL: WHE7074SA Diagnostic Manual

ARESI1004 Issue 1

Step "77" is skipped

in this model

Displayed

Function test Actions Availible Behaver Expected

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