Premium PRN10050MW, Service Manual

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OPERATION
HMI and keys operation
The keys in HMI and display layout are referred in the following figure
：
1.1 Key
A.SET position set key
1.2 Display screen
①
Shift 1
②
Shift 2
③
Shift 3
④
Shift 4
⑤
Shift 5
1.3 Display
◆
Once initially powered on
，
the display screen is on full display for 3s
，
and then operates
as the displayed middle shift.
◆
Normal operation display
In case of a failure
，
the appropriate LED light show in combination the failure code (in recycling display)
；
In case of no failures
，
the actual operation position of refrigerator will be on display.
1.4 Shift setting
Each time the shift setting key A is pressed once
，
the shift position changes one time. After the shift setting
has been completed, the refrigerator will operate according to the set value in 5mins.
The shift regulation is
：
1.5 Fault indication
Display Malfunction
The LED1 and LED2 lit Refrigerator temperature sensor circuit
The LED1 and LED3 lit Freezer defrost sensor
The LED1 and LED4 lit Ambient temperature sensor
Shift 1 Shift 2 Shift 3 Shift 4
Shift 5
A
① ② ③ ④ ⑤