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COMPONENTS DIAGNOSTIC MODE CHART (POWER-UP DIAGNOSTIC)
1. Switch OFF the Ice-Maker using the User Board push-button.
2. Slide the ice maker out of the mounting rails, remove the cover leaving the wiring harness connected.
3. Connect jumper test holes "T" and "H" to bypass the bimetal thermostat and start a harvest.
4. Make sure there is a clear path across the bin for the infrared beam to travel to the receiver sensor.
Close the freezer door and switch on the system using the User Board ON/OFF push-button then
wait 5 seconds to allow the optics relay to close.
5. Open the freezer door and observe the ice maker. A "harvest" should be in progress, i.e. the ice cube
rake is turning.
NOTE: If holes "T" and "H" are properly bridged and the ice maker will not run, stop the test, and check
the ice maker.
6. Remove the jumper before the fingers reach 10:00. Reinstall the ice maker.
7. Switch OFF the Ice-Maker immediately after the water fill.
8. With the freezer door closed, switch ON the Ice-Maker.
9. Wait 5 seconds, to a maximum of 50 seconds, then open the freezer door, and watch the Status LED
for one of the following codes
4 PULSES, repeated once, indicates the relay is defective. Replace both the emitter and receiver boards.
3 PULSES, repeated once, indicates the optics and relay are okay, but the ice maker is not being sensed,
or will not operate. If this happens:
• Check the bail arm switch to make sure it is On
• Check the ice maker circuit and the connections back to the receiver board and neutral.
• Check the ice maker components.
2 PULSES, repeated once, indicates the optics are blocked, or defective. Clear the optics path, and
repeat the "Optics Diagnostics Procedure." Replace both boards, if necessary.
STEADY LIGHT for 5 seconds indicates the relay and optics are okay, and the receiver senses
the ice maker.
NO LIGHT: Switch OFF the Ice-Maker using the User Board for 5 seconds, and repeat the test.
WARNING
Electrical Shock Hazard
Voltage is present during these tests.
Status LED Output Codes
33
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