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SERVICE MANUAL
Model: HRF-800DGS8
22
Issue 2014-11-13
REF. Ref1411S025V1
Chapter 8 Refrigerator control principle
8-1.The refrigerator temperature control introduction
Switch point of fridge setting temperature is based on fridge sensor SNR temperature;
When the fridge SNR temperature is greater than the starting point, fridge`s large wind door will open;
When the fridge SNR temperature is less than shutdown point, fridge`s large wind door will close;
When the refrigerator SNRF temperature is greater than switch point, freezer fan motor will start, or fan
motor will stop.
Variable temperature position regulate by setting variable room`s key-press panel, the initial setting state
is in the fresh food section, once press set key, temperature position shift from right to left by recycling.
When the variable room SNRD SNR temperature is greater than the starting point fridge`s small wind
door will open, or will close.
8-2. The defrosting control introduction
First power on to defrost & under fault state compressor accumulatively work 5Hr, enter the state of
defrosting, fridge and freezer defrosting frozen at a time;
And do statistic and judgment according to the running time of compressor and refrigeration frozen door
switch`s opening time, then defrosting fridge and freezer separately or simultaneously.
Under normal working condition:
Defrosting cycle can change by defrosting control, change defrosting cycle and the door opening and
closing times and time, inner temperature is related to environmental temperature.
Freezer defrosting:
When freezer door open more frequently, according to the different frequency, compressor defrost one
time every working 7~12 hours;
When freezer door open less times, according to the different frequency, compressor defrost one time
every working 12~24 hours;
The longest time for defrosting is refrigerator running 72 hours;
Fridge defrosting
22


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