Display Function Of Communication Error; Test Cancel Mode - Samsung RFG237AA Service Manual

TROUBLESHOOTING
2) Simultaneous manual defrost(fresh food and freezer compartments) function
2-1) If any key is pressed one more time during manual operation(fresh food compartment), "Fd" shows in
the display and then manual operation will be canceled at once and fresh food and freezer
compartment will be defrosted.
2-2) At this moment, alarm beeps for 3 seconds (0.1 sec ON/ 1 sec OFF) during manual defrost function of
fresh food and freezer compartment.

3) Test cancel mode

3-1) During the simultaneous defrosting of fresh food and freezer compartments simultaneously, if the
display panel change to the test mode and test button is pressed one more time, defrosting of fresh
food and freezer compartments will be canceled at the same time and will return to the normal
operation. Or, all test functions will be canceled by turning main power OFF and ON.

4-1-2. Display function of Communication error

1) Display function when Panel ↔ MAIN MICOM communication has error
1-1) If there is no answer for 10 seconds after the panel micom received the requirement of communication,
"Pc - Er" 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 - E" display on the Pantry Room Display will be ON/OFF alternately until the communication error
is canceled. (0.5 sec ALL ON, 1.5 sec ALL OFF alternately)
2) Display function when Panel ↔ MAIN MICOM OPTION has error
2-1) "OP - Er" code is repeatedly ON/OFF until Option error settles down.
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