Toshiba 22031020002961, Service Manual

Page: 35 / 51

Service Manual , 2017-8
35 / 51
9.11Test mode
Test
module
Test items Testing Method Expected result
Test
Mode
Enter Test
Mode
Long press both vacation
button and temperature
setting button of
refrigerator room for 4s
It indicates “0” on display panel, and buzzer
sounds once, the refrigerator enter in test mode
In test mode, if no new
mode set, lock the panel
The refrigerator will exit test mode, and return
back to normal running
Select to
enter into
forced
cooling mode
In test mode(“0” on display
panel), click the vacation
button,
The display panel indicates “1”,the refrigerator
enters in mandatory cooling mode, the
compressor and fan start to work mandatorily,
and the air damper is opened.
In mandatory cooling
mode, if there is no
operation on display panel
in 36 hours
The refrigerator exits test mode, and return back
to normal running
Select to
enter into
forced
defrosting
mode
In mandatory cooling
mode(“1” on display
panel),click the vacation
button
The display panel indicates “3”, the refrigerator
enters in mandatory defrost mode, the
compressor and fan stops working, and the air
damper is closed
In mandatory defrost
mode, when the
temperature of defrost
sensor arrives 12
℃ and
the defrost heater has
worked for 3 minutes
The refrigerator will exit mandatory defrost
mode and return back to normal running
In mandatory defrost
mode, when the
temperature of defrost
sensor is lower than 12
℃
and the defrost heater
has worked for 1 hour
The refrigerator will exit mandatory defrost
mode and return back to normal running
9.12Self-diagnosis

Conditions for entering into this mode
When the power is on for the first time, here is no sensor failure and the defrost sensor
temperature is equal to or more than 0°C.

Self-diagnosis process
1
、
Defrost heater is on for 2 seconds and off for 2 seconds;
2.The fan is on for7 seconds and off for 3 seconds;
3.damper on 2seconds and off for 2 seconds;
4. The refrigerator light on 2seconds and off for 2 seconds;