Troubleshooting - Samsung RT38 Service Manual

TROUBLESHOOTING

4-1-1-1-2. Models with ROTARY S/W (Fridge Room)
3. In a Normal mode, Test Key reoganized as the 1 time the force is selected.
4. If forced operation is selected, even in action, COMP will work immediately without 7-minute delay.
5. If forced operation is selected, defrost immediately is interrupt.
6. If forced operation is selected, COMP. and F-FAN continuously operate for 24 hours.
7. The froced operation continues to operate until completed or different MODE is switched or released (force
defrost F).
8. Once forced operation is complete (24 hours). F defrost is proceeded regradess of the previous state.
9. After the defrost operation depending on the completion of the forced operation by judging and operating
CASE which performs defrost function, it is proceeded a the normal defrost conditions.
10. In the middle of forced operation, if it is released randomly (in case of changes to release MODE), COMP
ON time of forced operation is intialized and can be working as forced operation.
Re-accumulated since the release and the defrost cycle is reflected.
[Reference]
Dead zone : If do not set a specific Notch, set between Notch, It is recognized as not the middle value
but abnormal range. This is called Dead zone.
※REFERENCE : TEST OPERATION BLOCK DIAGRAM (TEST MODE)
NORMAL
OPERATION
1. If repeating 3 times switch of 'Coldest' Choices as Rotary Switch
and "Dead Zone" over a second choice, a Test key will be
recognized as a one circuit. However, the choice of "Coldest" and
"Dead zone" exceed 5 seconds.
3 time Count is initialized.
2. Start typing TEST KEY and forced maneuver --> forced F defrost
--> force F (Normal operation) --> TEST feature is changed as
the sequence to forced operation.
TEST KEY
INPUT
FORCED
COMPRESSOR
OPERATION
TEST KEY
INPUT
36
TEST KEY
INPUT
FORCED
DEFROST
OPERATION