Service Manual

For Service Technician Use Only
DIAGNOSTICS
2-8
n
Whirlpool
®
, Maytag
®
, Amana
®
, & IKEA
®
Refrigerators
Step Step Code Component Acon Feedback
33
●
LED1
O
LED2
●
LED3
O
LED4
●
LED5
SANKYO
Ice maker
- Ice tray
thermistor
Entry: Display step number.
Do: Read the current temperature
of the ice maker tray, thermistor and
compare this value. This informaon
shall be dynamically updated every
second. Service user to monitor the
display feedback.
Exit: Clear feedback informaon.
NOTE: For models without twist tray
ice maker, the feedback will read as
open.
Open sensor display
●
LED6
O
LED7
O
LED8
O
LED9
O
LED10
Short sensor display
O
LED6
O
LED7
●
LED8
O
LED9
O
LED10
Pass test display
O
LED6
●
LED7
●
LED8
●
LED9
O
LED10
Sensor status blank unl gets a
valid reading
O
LED6
O
LED7
O
LED8
O
LED9
O
LED10
34 OFF NONE OFF OFF
35
●
LED1
●
LED2
●
LED3
●
LED4
●
LED5
Service
completed
Last step in service N/A

During the rst 30 seconds aer power up the product, press
TEMP seng buon, unl is located min posion, then hold the
refrigerator door switch to simulate the door is closed, and at
the same me hold press refrigerator TEMP buon for 5 seconds
unl the board enters service mode.

Into service state mode, all temperature LEDs turn on for and
turn OFF aer 10 seconds.
A user must use the SW1 buon to advance steps into service
mode. User shall wait 3 seconds between each keypress to allow
the system stabilizaon.
All sensors will be tested without required acon from service
personnel. This acon is taken aer the heater o.
Aer last step press SW1 to exit service mode, user interface will
reset to the last mode and start the power-up state.
Switch
Press
Display Informaon
Load
D 9 D 8 D 7 D 6
0
□ □ □ □
Start condion
1
□ □
Ƀ
□
Compressor On
2
□ □ □ □
Compressor O
3
□
Ƀ
□ □
Heater On
4
□ □ □ □
Heater O
5
Ƀ
□ □ □
Not Used
6
□ □ □ □
Display Fail Message
7
□
Ƀ
□ □
Return To Normal
OP (Default To Med)
The fail informaon is shown below with the LEDs turned ON,
this will appear in step 6 from the above table.
NOTE: If step 6 shows all LEDs blank means that board drivers
and sensors are working correctly.
D 6 (MIN
POSITION)
D 7
D 8
D 9
SW1
Ideal
Coldest
Replace
Water
Filter
Water Filter Reset
Hold 3 sec