Whirlpool 4322658A Manuel - Page 28

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OPTICS DIAGNOSTICS FOR

2002 DESIGN BOARDS

KIT #4389102

EMITTER—PART #2220398

RECEIVER—PART #2220402

To initiate an optics check, perform the follow-

ing steps:

Open the freezer door.

View the status LED. It should flash twice,

pause for 1 second, and repeat the cycle

for as long as the door is open.

NOTES:

• If the LED is not flashing, the ice maker

may be in the 5 minute "harvest" mode.

If so, push in on the freezer door switch

with your finger, and observe the LED.

It should begin to flash at 1 second in-

tervals, and continue to flash for as long

as you hold the door switch.

• If the LED does not flash, as described

above, the original style optics boards

may be installed. Perform the steps,

shown in Chart A, on page 5-6.

Check the ice maker manual shutoff slide

and make sure that it is in the "ON" (open)

position on the infrared receiver module.

Manual Shutoff Slide

Status LED

Infrared Receiver

Sensor

5-4

Close the flapper door on the emitter mod-

ule so that the infrared beam has a clear

path to the receiver board.

Emitter

Module

Door Shown In The

Open Position

Make sure that the door switch is not

pushed in, and view the status LED. With

the flapper door on the emitter module

held closed, and the ice maker not in the 5

minute "harvest" mode, the status LED

should be on steady. This indicates that

the optics circuits are operating properly.

If the status LED continues to flash, refer

to the "Troubleshooting Chart" on page

5-9.