Defrosting Function; Test Mode - Midea Combi Series Service Manual

10.7 Defrosting function

Defrost in the freezing chamber
1）Defrost the freezing chamber as per the accumulative operation time of the compressor.
2）If power failure occurs abruptly to the compressor and the sensor in freezing chamber is less than 0 ℃
after powering on, then first conduct defrosting once. If more than 0 ℃, then defrosting is not needed.
After that, conduct defrosting according to using condition and ambient temperature in a period between 6
and 24 hours as per the accumulative operation time of the Compressor.
Defrost in refrigerating chamber
1) Start Condition: Refrigerate accumulated refrigeration over 6 hours, begining to defrost.
2) Exit condition: Exit the defrost when one of the following conditions is met
A. Trd ≥ 10℃
B. Frosting time in the freezer ≥ 60 min

10.8 Test mode

Test items
Press and hold the refrigerating
button and the freezing button 3s
to enter the forced operation
Select to mode(as shown picture 1), then
press the freezing button to adjust
enter into
forced to the picture 2 state, and the lock
cooling will take effect.
mode
1、In forced cooling mode, if no
button is pressed within 36 hours,
2、Or press the thermostat button
for 2 times in the mode operation
Press and hold the refrigerating
button and the freezing button for 3
seconds to enter the forced
running setting mode (as shown in
Select to the picture 1), and then press the
freezing button twice to adjust to
enter into
forced the picture 3 state to enter the
defrosting forced defrost mode.
mode
1. Under the mode of forced frost,
frost sensor temperature 8 ℃, and
the frost heater open longer than 2
min2.Or press the thermostat
button once in mode operation
Testing Method Expected result
LED ①④⑤ lit at the same time, the
compressor operation, cooling fan in the most
upscale run.
then the refrigerator will exit the mode and
return to normal operation mode
LED ②④⑤ lit at the same time ,the press and
fans to stop working, and frost open heater,
refrigerator into the frost
then the refrigerator will exit the test mode and
return to normal operation mode
41
Service Manual_2018-V2.0
1
2