19
Pump-Out Diagnosis:
In the freeze cycle before pump-out (see table above), after 5 min. of freeze disconnect
FS connector. Check that CB LEDs 4, 5, 6, and 7 are on, PM stops, then restarts, DV
energizes, and water is flowing down the drain through DV. If not, continue to steps
below.
a)
CB Diagnosis
: Confirm FM de-energizes. If FM is energized with LEDs 4, 5, 6, and
7 on, replace CB. If PM does not stop and restart and DV does not energize, check
that CB LEDs 4, 5, 6, and 7 are on. If not, replace CB. If LEDs 4, 5, 6, and 7 are
on and PM is not energized, check for 115VAC at CB K5 #3 (DBU) to neutral (W).
If 115VAC is not present, replace CB. If 115VAC is present at CB K5 #3 (DBU) and
PM is not energized, continue to "b)
PM Diagnosis
:" below. If PM is energized and
DV is not energized, check for 115VAC at CB K5 #6 (GY) to neutral (W). If LED 4 is
on and 115VAC is not present at CB K5 #6 (GY), replace CB.
b)
PM Diagnosis
: Check for 115VAC CB K5 #3 (DBU) to neutral (W). If 115VAC is not
present, see "b)
CB Diagnosis
" above. Next, check for 115VAC at control switch
#4 (DBU) to neutral (W). If 115VAC is not present, confirm 115VAC at control switch
#5 (BK) to neutral (W). If 115VAC is present at control switch #5 (BK) and not at
control switch #4 (DBU), replace control switch. If 115VAC is present at control
switch #4 (DBU) and PM is de-energized, check PM capacitor, motor winding, wiring
connections, and impeller for binding.
e)
DV Diagnosis
: Check for 115VAC at CB K5 #6 (GY) to neutral (W). If 115VAC is not
present, see "b)
CB Diagnosis:
" above. If 115VAC is present at CB K5 #6 (GY) and
DV is de-energized, check DV coil continuity, make sure the drain line is not clogged
and that DV is clean and operating properly.
8)
Normal Harvest Cycle
– Same as the initial harvest cycle. Return to step 5a) above.
Note: Appliance continues to cycle until BC is satisfied or power is switched off. The
appliance always restarts at the 1-min. fill cycle.
2. Shutdown Diagnosis
1)
See "II.D.1. Bin Control Check."
Legend:
BC
–bin control;
CB
–control board;
Comp
–compressor;
CR
–compressor relay;
DV
–drain valve;
FM
–fan motor;
FS
–float switch;
HGV
–hot gas valve;
HPS
–high-pressure switch;
PM
–pump motor;
TXV
–thermostatic expansion valve;
WRV
–water regulating Valve;
WV
–inlet water valve
Summary of Contents for KM-301BAJ
Page 31: ...31 I Freeze Up Check List ...
