Midea HS-312FWEN, Service Manual

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Service Manual_2020-V1.0
40
9.2.2 Temperature setting of freezing
The temperature setting range of freezer is -24
℃
～
-16
℃
, every time you press the button A , the
temperature will cycle according to the following gears, and the gears will take effect after setting for 15
seconds.
-16
℃
→ -18
℃
→ -20
℃
→ -22
℃
→ -24
℃
→
( Super freezer )
9.3 Mode setting
9.3.1 Refrigerating / freezing mode change
Press the
button B
for three seconds to change, and the 4
℃
and -
20℃
icon will illuminate.
9.3.2 Super cool mode
The icon will illuminate, the temperature is set to 2
℃
. Automatically exit after the temperature
reaches and runs for another 150min.
9.3.3 Super freeze mode
The icon will illuminate, the temperature is set to -24
℃
. Automatically exit after running 24
hour.
9.3.4 Locking and unlocking (None)
9.4 Defrosting function
◆
Defrosting theory:
The defrosting of evaporator is realized by the heating of heater, following the temperature rise, the frost
on evaporator becomes water, and the water flow into the evaporating pan via the draining system, the
water in evaporating pan evaporate away finally
◆
Defrosting steps:
Compressor shutdown--- the freezer fan motor closed, the heater start working ---the heater stop when
the temperature rise to setting--- after 7 minutes, the compressor will start--- after 8 minutes, the fan
motor will start work
◆
Meet one of the following conditions , defrost heating exit:
1)
When the defrosting sensor has no fault, the measured temperature Tfd ≥ the set temperature 8
℃
which frozen defrost heating exit and the set temperature 5
℃
which refrigerat defrost heating exit.
2) When the defrosting sensor has no fault, the freezer
defrosting time is ≥ 60 minutes, the refrigerating
defrosting time is ≥ 5 hours.
3) When the defrosting sensor is faulty , the heater will stop after work 30 minutes.