17
Pump-Out Diagnosis
: In the freeze cycle before pump-out (see table above), after
5 min. of freeze disconnect CB black K5 connector (FS connector). Check that PM
stops and re-starts. Next, check that PM rotation is correct (water flowing down the
drain through CV). If PM does not stop and re-start, check that CB LEDs 1, 3, and
2 are on. If not, replace CB. If LEDs 1, 3, and 2 are on and PM does not energize,
check for 115VAC at CB K1 #5 (DBU) to neutral (W). If 115VAC is not present, replace
CB. If 115VAC is present, check that X10 relay is de-energized. If not, check X11 relay
status. If X11 relay is energized, replace CB. If X11 relay is de-energized and X10 relay
is energized, replace X11 relay (contacts sticking). If X10 relay is de-energized, check
for 115VAC at terminal #6 (DBU) to neutral (W) and terminal #2 (DBU) to neutral (W).
If 115VAC is present on terminal #6 (DBU) and not on terminal #2 (DBU), replace
X10 relay. If PM is energized and rotating in pump-out rotation, make sure the drain line
is not clogged and that CV is clean and operating properly.
Confirm FM and LLV de-energize. If FM is energized, confirm where FM is connected
on CB. If connected to CB K1 connector pin #9, FM should be energized. If connected
to CB K1 connector pin #3 and FM is energized, replace CB. If LLV is energized with
LEDs 1, 3, and 2 on, replace CB.
8)
Normal Harvest Cycle
– Same as the initial harvest cycle. Return to step 5a) above.
Note: Appliance continues to cycle until BC is satisfied, power is switched off or
freeze-time correction cycle is initiated. The appliance always restarts at the
1-min. fill cycle.
2. Shutdown Diagnosis
1)
See "II.D. Bin Control Check."
Legend:
BC
–bin control;
CB
–control board;
Comp
–compressor;
CR
–compressor relay;
CT
–control transformer;
CV
–check valve;
FM
–fan motor;
FS
–float switch;
HGV
–hot gas valve;
HPS
–high-pressure switch;
LLV
–liquid line valve;
PM
–pump motor;
TXV
–thermostatic expansion valve;
WV
–inlet water valve
