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CS200
Control Systems
Troubleshooting
• Make sure the thermocouple is clean and dry before and after each bath.
• Reposition the thermocouple at the desired location to monitor or control temperature.
Fill Solenoid Cycles On and Off
CS200 SERIES Control System features a timer function whereby the valve open duration is limited, allowed to
shut for a short warm-up and then opened again. To confirm or change the valve open duration:
• Select
MENU
, USER OPTIONS, CONTROL OPTIONS, FREEZE-GUARD OPTIONS, VALVE OPEN
DURATION.
If the controller Freeze-Guard function detects that the valve is stuck in the open position (i.e., continues to fill
after the valve is de-energized), it will attempt to De-Ice the valve by causing a rapid cycling of the valve in an
attempt to dislodge the blockage.
• To activate or de-activate this feature: Select
MENU
, USER OPTIONS, CONTROL OPTIONS, FREEZE-
GUARD OPTIONS, VALVE DE-ICING.
Repeated cycling of the Solenoid Valve, caused by excessive turbulence, power/low battery, bad connection,
or circuit board corrosion, could be attributable to moisture invasion on the controller circuit board.
To troubleshoot proper operation of the fill valve:
1. Confirm the pressure of the supply vessel is less than 22 psi (1.4 bar/138 kPa).
2. Watch the interface panel on the controller to verify if the Start and Stop Fill cycles are repeating. You
should see and hear each cycle.
Solenoid Makes Excessive Humming Noise
During normal operation, the solenoid valve will make a soft humming noise. If the noise is excessively loud,
turn the valve on and off using the control panel. If a soft humming noise is heard, the valve should continue
to operate reliably. If the humming noise is excessive, replace solenoid valve. It is recommended the solenoid
valve be replaced every two (2) years.
Lid Open Alarm
A lid switch is located near the hinge. The proximity switch should actuate when the lid is opened and again
when it is closed.
Confirm that there is a ½ in. (12 mm) gap between the sensors.
QCF (Quick Chill Feature) Will Not Operate
See LID OPEN ALARM
To activate or adjust times: Select
MENU
, CHANGE SETTINGS, QUICKCHILL, TIMER.
Auto Defog Feature Will Not Operate
See LID OPEN ALARM.
To activate or adjust times: Select
MENU
, CHANGE SETTINGS, AUTO DEFOG.
Summary of Contents for CS200
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