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5) Freeze Cycle – LED 1 is on. Comp and FM/FMR remain energized, PM energizes
or, for KM-1601SAH/3, remains energized. LLV energizes. HGV and X10 relay
(KM-1601SAH/3) de-energize. The unit is held in freeze by a 5-minute short cycle
protection timer (CB will not accept a signal from F/S during the rst 5 minutes of
freeze). After the 5-minute short cycle protection timer terminates, CB turns freeze
termination over to F/S. Diagnosis: Check that Comp, FM/FMR, PM, and LLV are
energized. Conrm that the evaporator temperature drops. Ifnot, conrm that LLV has
energized and is open. Make sure WV and HGV are de-energized and closed. Next,
conrm proper unit pressures and TXV operation, check for an inefficient Comp or an
inoperative HM. After 5 minutes in freeze, disconnect black F/S connector from CB
BLACK K5 connector. After a 15 second delay, the unit should switch out of freeze. If
the unit switches out of freeze with F/S connector removed, but would previously not
switch out of freeze with F/S connected (long freeze - 3 beep alarm), F/S may be
sticking. To check and clean F/S, see "IV.D. Float Switch Check and Cleaning." If the
unit remains in freeze longer than 15seconds after disconnecting black F/S connector,
replace CB. For short freeze cycle, check that reservoir is full at beginning of freeze,
pump-out check valve is not leaking by, and drain plug is in and not leaking.
Note: Normal freeze cycle will last 20 to 40 minutes depending on model and
conditions. Cycle times and pressures should follow performance data provided in
this manual. See "III.C. Performance Data."
6) Pump-Out Cycle – (10/20 second pump-out) – LEDs 1, 3, and 2 are on. LED 4 is
on when S4 dip switch 3 & 4 are set to 3 off and 4 on. CAUTION! for KM-1601SAH/3:
Do not adjust S4 dip switch 3 & 4 to 3 off and 4 on. Adjustment to this position
on this model prevents the pump motor from rotating in the pump-out direction.
Comp and FM/FMR remain energized, HGV energizes. WV energizes if S4 dip switch
3off and 4 on. LLV de-energizes. PM de-energizes for 2 seconds, then reverses for
10/20 seconds depending on pump-out timer S4 dip switch 3 & 4 setting. When the
pump-out timer terminates, the pump-out is complete. The pump-out frequency control
is factory set for every 10th cycle (except for KM-1601SRH/3 utilizing 3U0111-02 water
valve), and generally no adjustment is required. However, where water quality is bad
and the icemaker needs a pump-out more often, the pump-out frequency can be
adjusted.
The pump-out frequency control (S4 dip switch 5 & 6) can be set to have a pump-out
occur every cycle, or every 2, 5, or 10 cycles. Timing of the rst pump-out is dependent
on the control board. For KM-1601SAH/3 "G" CB, rst pump-out is dependent on S4 dip
switch 5 & 6. See the table below. For KM-1601SWH/3 and KM-1601SRH/3 "E" CB, rst
pump-out occurs after the rst freeze cycle.
KM-1601 SAH/3 "G" & KM-1601SWH/3 & KM-1610SRH/3 "E" Control Board Settings
S4 Dip Switch Setting
Pump-Out
Frequency
1st Pump-Out
KM-1601SAH/3
"G" Control Board
KM-1601SWH/3
KM-1601SRH/3
"E" Control BoardNo. 5 No. 6
OFF OFF Every cycle After 2nd freeze cycle After 1st freeze cycle
ON OFF Every 2 cycles After 3rd freeze cycle
OFF ON Every 5 cycles After 6th freeze cycle
ON ON Every 10 cycles After 11th freeze cycle