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7) Ice Purge Cycle – "GM" LED is on. 5-sec. GM delay timer terminates. GM, FM,
and CCR energize. Once CCR energizes, 5VDC circuit closes through CCR terminal
#3 (W/O) and terminal #5 (W/O) and CB K9 #5 (W/O) and K9 #6 (W/O). After 5VDC
circuit closes, 5-min. ice purge timer starts. To bypass the 5-min. Ice Purge Cycle, press
the "SERVICE" button on CB after the "GM" LED turns on. WARNING! Risk of electric
shock. Care should be taken not to touch live terminals. CCR cannot energize
unless GM circuit is complete (GM external protector and GM internal protector).
See "II.C.2)(1)c) Compressor Control Relay (Ice Purge Timer Circuit)."
If CCR de-energizes, CB K9 #5 W/O and CB K9 #6 W/O circuit opens and an 8-beep
alarm occurs. See "III.B. LED Lights and Alarm Safeties." Note: To bypass ice purge
cycle and go straight to freeze cycle, press the "SERVICE" button on CB after GM
energizes.
Diagnosis CB: If "GM" LED is off, check that UFS closes and WV de-energizes. If UFS
is closed, 30 sec. has passed, and "GM" LED remains off, replace CB. If "GM" LED
is on and GM is off, check CB K1 #2 (BK) to a neutral (W) for 115VAC. If 115VAC is
not present, check 115VAC power supply. If 115VAC is present, check CB K1 #3 (P) to
neutral (W). If 115VAC is present on CB K1 #2 (BK) and not on CB K1 #3 (P), replace
CB.
Diagnosis GM: If 115VAC is present at CB K1 #3 (P) to neutral (W), check GM external
protector. If tripped, reset. If GM external protector is closed, check GM internal
protector (windings). If open, allow time for GM to cool down and internal protector to
reset. If not, replace GM. Next, check GM capacitor and GM coupling between auger
and GM.
Diagnosis FM: If FM does not start, check that fan blades are not binding. Next, check
FM capacitor, FM windings, and FM bearing.
Diagnosis CCR: See "II.C.2)(1)c) Compressor Control Relay (Ice Purge Timer Circuit)."
Once 5-min. ice purge timer terminates or the "SERVICE" button is pressed, freeze
cycle begins.
8) Freeze Cycle – "COMP" and "GM" LEDs are on. The 5-min. ice purge timer
terminates or the "SERVICE" button is pressed. "COMP" LED turns on. "GM" LED
continues. Comp energizes. GM, FM, and CCR continue. Ice production begins 4 to
6 minutes after Comp energizes depending on ambient and water conditions. As ice is
produced, the water level in the reservoir drops. UFS opens. Nothing happens at this
time. When LFS opens, WV energizes and refill cycle begins, FZT terminates, and FT
starts.
FZT: 30-Min. Freeze Safety Timer: FZT starts when UFS closes and terminates
when LFS opens. If LFS does not open within 30 min. of UFS closing, CB shuts down
the icemaker and sounds a 5-beep alarm. See "III.B. LED Lights and Audible Alarm
Safeties." To reset, turn the power supply off and on again. See "II.F.Diagnostic Tables"
for troubleshooting details.
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