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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. Comp and FMR remain energized,
HGV energizes. WV energizes if S4 dip switch 3 off & 4 on. LLV de-energizes. PM stops
for 2 seconds, then reverses for 10/20 seconds depending on pump-out timer S4 dip
switch 3 & 4 setting. When pump-out timer terminates, the pump-out is complete. The
pump-out frequency control is factory set for every cycle. The rst pump out occurs after
the 1st freeze cycle and every cycle thereafter. Generally no adjustment is required. For
details, see "II.C.4.d) Pump-Out Frequency Control (S4 dip switch 5 & 6)."
Diagnosis: If PM does not reverse, check PM circuit and capacitor. Next, check
CB10-pin connector #5 pin dark blue (DBU) wire for 115VAC. If 115VAC is not present,
CB is bad and must be replaced. If 115VAC is present, check PM continuity. If PM is
reversing but water does not pump out, check and clean the check valve assembly and
tubing. If S4 dip switch 3 & 4 are adjusted to 3 off and 4 on, WV energizes.
7) Normal Harvest Cycle – same as the initial harvest cycle – Return to "IV.A.4) Initial
Harvest Cycle."
8) Shutdown
When the unit is running hold ice in contact with the thermostatic bulb, the thermostatic
BC switch opens within 10 seconds, shutting down the unit. The bin control is factory
set, and generally no adjustment is required. However, adjustment may be needed in
some conditions, particularly at higher altitude locations. CAUTION! Do not adjust
S4 dip switch 7 out of the factory default position on this model. This dip switch
must be left in the factory default position or this unit will not operate correctly.
Diagnosis: See "IV.C. Bin Control Check."
Note: Unit continues to cycle until bin control is satised or power is switched off. The
unit always restarts at the 1-minute ll cycle.
Legend: BC–bin control; CB–control board; Comp–compressor; FMR–fan
motor-remote; F/S–oat switch; HGV–hot gas valve; HM–headmaster (C.P.R.);
LLV–liquid line valve; PM–pump motor; TXV–thermostatic expansion valve;
WV–inlet water valve