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5

While in the harvest cycle in the service mode,
the heater will remain on for a minimum of 20
seconds.  The water fill cycle will initiate the
first fill (5.1 seconds) without waiting for the mold
to “prechill”.  Only one water fill occurs during
the service mode, whether the thermistor has
reached 39.2°F (4°C) or not.  The icemaker will
exit the service diagnostic test on its own and
enter the normal freeze cycle.

NOTE: When replacing an icemaker, the Power
On test will probably occur since the mold
temperature will be above 50°F (10°C).  While
in the power on test, the Service Diagnostic test
can be initiated and will override the power on
test mode.

MOTOR ON

FREEZE

CYCLE

PRECHILL

CYCLE

O
N

V
A
L
V
E

MOTOR ON

MINUTES

Wait

until frozen

(

minimum 30 minutes)

About

10 MINS.

Less than

35.6˚F (2˚C)

5.1

secs.

NORMAL OPERATION

(EJECTOR STARTING AT HOME POSITION)

HEATER ON

(usually takes about 60 minutes)

HEATER ON

 until 35.6˚F (2˚C)

   (minimum 20 seconds)

Summary of Contents for Electronic Icemaker

Page 1: ...Electronic Icemaker GE Consumer Home Services Training TECHNICAL SERVICE GUIDE Pub 31 9063 8 00 ...

Page 2: ...esult in personal injury and property damage The manufacturer or seller cannot be responsible for the interpretation of this information nor can it assume any liability in connection with its use RECONNECT ALL GROUNDING DEVICES If grounding wires screws straps clips nuts or washers used to complete a path to ground are removed for service they must be returned to their original position and proper...

Page 3: ...tain icemaker fault conditions such as an open or shorted thermistor or a harvest cycle longer than 30 minutes When a fault occurs the LED will blink 1 2 second on 1 2 second off indefinitely until the icemaker is turned off Electronic Icemaker Beginning in the Spring 2001 a newly designed icemaker will be introduced in several refrigerators This service guide will help you become familiar with th...

Page 4: ...ay will begin again if the arm goes back to the in position anytime during the delay period The arm is spring loaded and will go to the out position unless it is being held in position by an obstacle such as an ice cube At the start of the harvest cycle the mold heater will be turned on One second later the motor will start The heater will remain on until the mold temperature is above 35 6 F 2 C a...

Page 5: ...he freeze cycle without allowing a water fill to insure against a double shot of water The control will enter a Fault Mode if a harvest cycle including harvest fix is not complete within 30 minutes Potential causes for a harvest to take longer than 30 minutes are Stuck ejector caused by a cube that was not cleared or a mechanical problem Bad heater caused by the heater control board or thermal cut...

Page 6: ...he control will assume an insufficient amount of water entered the mold It will then energize the water valve again for 2 5 seconds delay for 15 seconds and test again After the second fill if the thermistor is still below 39 2 F 4 C a third fill for 2 4 seconds will occur There is a maximum of three fills available at which point the fill cycle will end and the icemaker will enter the freeze cycl...

Page 7: ... its own and enter the normal freeze cycle NOTE When replacing an icemaker the Power On test will probably occur since the mold temperature will be above 50 F 10 C While in the power on test the Service Diagnostic test can be initiated and will override the power on test mode MOTOR ON FREEZE CYCLE PRECHILL CYCLE O N V A L V E MOTOR ON 3 MINUTES Wait until frozen minimum 30 minutes About 10 MINS Le...

Page 8: ...Board Failure Magnet Failure Control Board Failure Stalled Motor TCO Failure Heater Element Failure Open Circuit Ground Wrong Connection Jammed Cube Heater Failure Motor Failure Winding Failure Loose Lead Loose Broken Gear Bent Broken Shaft Thermistor Failure Control Board Failure Control Board Failure Improper Water Valve Connection Water Valve Failure Thermistor Not Detecting Fill Harvest Too Ea...

Page 9: ...E ORANGE BLACK BROWN MOV1 C12 C13 C1 C14 LD1 DB1 U2 U1 X1 BLACK BLACK 115 VOLTS AC 60HZ PCB ASSEMBLY THERMISTOR MOLD BODY ICEMAKER MOTOR HEATER T C O RED BLACK ORANGE ORANGE WHITE POWER SWITCH GROUND LINE NEUTRAL WATER VALVE GREEN WITH YELLOW STRIPE WHITE BROWN ORANGE ...

Page 10: ...8 ...

Page 11: ...rvest Fix 5 During the freeze cycle the algorithm programmed into the control takes several items into consideration before entering the harvest mode However on an average how often does the icemaker cycle and drop its seven cubes A 120 Minutes B 90 Minutes C 75 Minutes D 60 Minutes 6 If the harvest cycle is not complete within 7 minutes the control will assume that a cube is blocking the completi...

Page 12: ...t fix B Series of fluctuations C Power on test D Fault test 11 During icemaker operation the control continuously monitors the thermistor s __________ A Resistance B Temperature C Mode D Diagnostics 12 If the thermistor is open or shorted the icemaker will enter a ______________ A Harvest mode B Period of inactivity C Fault mode D Third water fill 13 The diagnostic service mode is entered by pushi...

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