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TROUBLESHOOTING
4-1-2. Display function of Communication error
2-1) When you press any key one more time at the manual operation status, Fd lights up on the Display
Panel. At this time, the Forced Operation stops immediately and F-Defrost will be performed at the
same time.
2-2) At this time, it will send out “Beep” sound for 2 seconds and then it will perform Forced F Defrost while
sending out “0.5 sec On and 0.5 sec Off” sound.
2) Forced Defrost
3-1) During the defrosting of freezer compartment if the display panel change to the test mode and test
button is pressed one more time, defrosting of freezer compartment will be canceled and the unit will
return to the normal operation.
Or, all test functions will be canceled by turning main power ON and OFF.
3) Test cancel mode
1-1) If there is no answer for 10 seconds after the panel micom received the requirement of communication,
"PC - Er" or "PC - Ch" display on the panel PCB will be ON/OFF alternately until the communication
error is canceled. (0.5 sec ALL ON, 0.5 sec ALL OFF alternately)
1-2) “PC - Er" or "PC - Ch" display on the Panel Display will be ON/OFF alternately until the communication
error is canceled. (0.5 sec ALL ON, 0.5 sec ALL OFF alternately)
1) Display function when Panel
↔
MAIN MICOM communication has error
2-1) "oP - Er" or "oP - Ch" code is repeatedly ON/OFF until Option error settles down.
2) Display function when Panel
↔
MAIN MICOM OPTION has error
