LG LS-J0761NL - Portection from Overheating of Compressor; Portection from Overheating of Power Module

16. Portection from overheating of power module
• If the temperature of the heat sink TH. reaches over Toff, the Compressor stop instantly.
• It will be limited the compressor operating frequency according to the heat sink TH.(refer to below FIG.)
• It will be blink 4 times, when the thermistor is open or short, also the temperature is over Toff.
17. Portection from overheating of compressor
• If the temperature of the discharge pipe of compressor reaches over 130°C or below -30°C the compressor
stop instantly.
• It will be limited the compressor operating frequency according to the compressor dome TH.(Refer to below
Fig.)
-25-
Comp. off
Comp. free
Fc-1
Fc-2
Target frequency
Toff (84°C)
Ton + 2°C (78°C)
Ton + 5°C (81°C)
Ton (76°C)
130°C
118°C
111°C
108°C
-13°C
-30°C
101°C
93°C
Fhmin
OFF
OFF
0Hz
Fc-2
Fc-1
Setting frequency
[The control graph from heat–sink TH]