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6) Freeze Cycle – LED 1 is on. Comp, FMR, and PM continue. FM and LLV energize.
HGV and X10 relay de-energize. Appliance is held in freeze by a 5-min. short cycle
protection timer. After 5-min. short cycle protection timer terminates and FS opens,
freeze cycle terminates.
Note: PM power supply switches from CB K1 #5 (DBU) in harvest to K1 #4 (R) in freeze.
Anti-Slush: When anti-slush is enabled (S5 dip switch 5 "ON"), PM de-energizes when
thermistor reaches 36°F (2.2°C) (5.8kΩ) for 10 sec. then, energizes for the remainder of
the freeze cycle.
a) Freeze Cycle Diagnosis: Confirm Comp, FMR, and PM continue. Confirm that
FM and LLV energize. Confirm WRV opens. Next, confirm HGV and X10 relay
de-energize. During the first 5 min. of freeze, confirm evaporator is cooling. If not,
confirm WV de-energized (not leaking by), HGV de-energized (not bypassing),
LLV and FM (if not connected to CB K1 connector pin #9) energize, TXV and HM
operate correctly, WRV opens, Comp is efficient, and refrigerant charge is correct.
See "VIII.A. Specification and Performance Data."
b) Comp, FM, and FMR Diagnosis: If Comp, FM, and FMR de-energize once freeze
begins, check that appliance has not shut off on HPS ("POWER OK" LED off). If so,
check "3)b) HPS Diagnosis" above. If "POWER OK" LED is on, check for 115VAC
at CB K1 #1 (V) or #9 (V) to neutral (W). If 115VAC is not present and LED 1 is on,
replace CB.
Comp: If 115VAC is present, check for 115VAC at CR coil. If 115VAC is present,
check CR coil and contact continuity. Replace as needed. If CR is okay, check Comp
start relay and start and run capacitors. Next, check Comp motor winding continuity.
If Comp is energized but evaporator is not cooling, check for an inefficient Comp.
See "VIII.A. Specification and Performance Data."
FM: If Comp is energized but FM is not, check capacitor, motor winding, and fan
blade for binding.
FMR: If Comp is energized but FMR is not, check for 115VAC at the FMR junction
box. If 115VAC is not present, check icemaker wiring connections. If 115VAC is
present, check for voltage at condenser unit. If 115VAC is not present, check field
wiring connections. If 115VAC is present, check FMR capacitor, motor winding, and
fan blade for binding.
c) WV and HGV Diagnosis: If WV is energized, check for 115VAC at CB K1 #6 (O) to
neutral (W). If 115VAC is present after PM energizes in harvest cycle, replace CB.
If 115VAC is not present, replace WV (bypassing). If HGV did not close at the end of
harvest, check for 115VAC at CB K1 #2 (P) to neutral (W). If 115VAC is present and
LED 3 is off, replace CB. If 115VAC is not present, replace HGV (bypassing).
d) PM Diagnosis: Confirm water is flowing over evaporator from PM and not WV. If PM
de-energizes once freeze begins, check for 115VAC at CB K1 #4 (R) to neutral (W).
If 115VAC is not present, replace CB. If 115VAC is present and PM is de-energized,
check for 115VAC at control switch #5 (Y) to neutral (W). If 115VAC is present at CB
K1 #4 (R) and not at control switch #5 (Y), check control switch continuity between
#5 (Y) and #4 (R). Replace as needed. If 115VAC is present at control switch #5 (Y)
to neutral (W), check PM capacitor and motor winding continuity.
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