Service Test Mode (Diagnostic Mode) - GE Monogram ZDIS150WSS Technical Service Manual

Service Test Mode
(Diagnostic Mode)
Note: Drain the reservoir before entering service
test mode.
1. Turn the icemaker ON.
2. Within 10 sec. of power on, press and hold the
ON and the CLEAN pads. (Release both pads
when all user interface LEDs begin to fl ash.)
3. Within 5 sec. of all LEDs fl ashing, press and
release the OFF pad.
This begins manual diagnostics. The OFF pad is used
to advance through each step. To exit the manual
ORDER COMPONENT
Entry Into Test
Mode
Bin Thermistor
1
Off pad to
advance
2 Evaporator
Thermistor
Off pad to
advance
Water Valve 4
3
Minute Timeout
Off pad to
advance
Clean Button
Press Will
Advance to Step 6
Water Level
3
Sensor
Continued
sensor check
Recirculation
4
Pump
Off pad to
advance
Reservoir Drain
5
Pump
Off pad to
advance
6 Compressor and
Condenser Fan
Off pad to
advance
Compressor and
7
Hot Gas Valve
Off pad to
advance
Twice Ice
8
Off pad to
advance
Ice Thickness
9
Off pad to
advance
diagnostics, press the ON pad.
Note: If no pad is pressed within 5 sec., the product
goes into the automatic diagnostic mode used at
the assembly plant. Each component is cycled
for 5 sec.
Service Test Mode Chart
After pressing the OFF pad to enter manual
diagnostics, all LEDs will illuminate for 5 sec. The
controls will then automatically move to the Bin
Thermistor test. Use the OFF pad to advance.
ON LED
On
On Solid OK
2 Blinks Open
4 Blinks Short
Off
Off Blinking Reservoir Empty
Off
(confirms sensor operation)
On
On
On Solid Blinking When Evap.
While Cooling Thermistor Reaches 4.5 °F;
Full Frost Pattern Should be
On Solid On Solid While Heating
While Heating Blinking When Evap.
Thermistor Reaches 52° F
Off
Off 2 Blinks – Thin
4 Blinks – Normal
6 Blinks – Thick
Press
Cycle Between Settings
– 40 –
OFF LED
On
Off
Off
On
On
Off
Visible
On Solid While Heating
Off On Solid – No Delay
Blinking – 10 Min. Delay
Press
Cycle Between Settings
Clean Button to
CLEAN LED
On
Off
On Solid OK
2 Blinks – Open
4 Blinks – Short
On
On
On
Off
On
Between Cycles
Clean Button
to
Off
(Continued next page)