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2. LED Lights and Audible Alarm Safeties
At startup, CB green "POWER OK" LED turns on immediately to indicate proper control
voltage and will remain on unless a control voltage problem occurs. For further details,
see "II.B. Service Diagnosis."
Sequence Step
LED
Energized
Components
Min.
Max.
Fill Cycle
WTRIN
WV
-
-
Ice Purge Cycle
GM
GM, EH
5 min.
5 min.
Freeze Cycle (with refill)
GM, COMP,
WTRIN* (refill)
GM, EH, PDS, Comp,
FMR, WV* (refill)
-
*On until UFS closes. Alarm
sounds after 90 sec.
1-in-1 Drain Cycle
(S1 dip switch 4 off)
FLUSH (Drain)
GM, COMP
(only if BC not
satisfied)
DV
Comp, GM, EH, PDS,
FMR (only if BC not
satisfied)
2 sec.
2 sec.
1-in-12 Drain Cycle
(S1 dip switch 4 on)
FLUSH (Drain) DV
10 min.
10 min.
The built-in safeties shut down the unit and have alarms as listed below.
No. of Beeps
(every 5 sec.)
Type of Alarm
Reset Options
1
Low Water Safety (FT)
UFS open > 90 sec. after WV energized.
Automatic reset once water supply is restored
and UFS closes.
2
Control Switch
In "DRAIN" position longer than 15 min..
Automatic reset once the control switch is
moved to the "ICE" position.
3
High-Pressure Switch: N/A on this model.
N/A
4
High-Pressure Switch: N/A on this model.
5
Freeze Timer (FZT)
WV off > 30 min. since last WV activation.
Manual reset. Turn power off and on again.
6
Low Voltage
(92VAC±5% or less)
CB green "POWER OK" LED turns off if
voltage protection operates.
The control voltage safeties automatically reset
when voltage is corrected.
7
High Voltage
(147VAC±5% or more)
8
Gear Motor
CCR contacts fail to close.
Manual reset. Turn power off and on again.
Legend:
BC
–bin control (infrared sensor);
CB
–control board;
CCR
–compressor control
relay;
DV
–drain valve;
EH
–evaporator heater;
FMR
–fan motor(s)-remote;
FT
–fill
timer (90-sec. low water safety timer);
FZT
–freeze timer (30-min. freeze safety
timer);
GM
–gear motor;
PDS
-pump-down solenoid valve;
WV
–inlet water valve
3. Ice Purge Cycle Bypass
To speed up the diagnostic process, the 5-min. ice purge cycle may be bypassed
by pressing the "SERVICE" button on the control board after the gear motor starts.
WARNING! Risk of electric shock. Care should be taken not to touch live terminals.
