Manitowoc QF0400 User Manual

Part Number 80-1230-9 10/10 131
If the liquid line temperature drops below 30°F for 3
continuous minutes during 7 consecutive cycles the
ice machine will start a SafeGuard Mode.
During the SafeGuard Mode the “Disch Temp” light will
continually flash to indicate a Safeguard Mode.
The ice machine remains off until:
• The toggle switch is moved from ICE to OFF, then
back to ICE.
• Line voltage is interrupted and restored.
Indicator Light
Before 48 hours have elapsed:
After a Standby Mode has been initiated the “Disch
Temp” light will flash anytime the toggle switch is
placed in the OFF position.
After 48 hours have elapsed:
The SafeGuard will be automatically erased from memory
and the “Disch Temp” light will not flash.
Temperature Sensor Checklist
Possible Problem List Corrective Action List
Thermistor is not properly
insulated
Insulate thermistor.
Thermistor loose Secure thermistor to liquid
line.
Thermistor mounted in the
wrong location
Position thermistor on liquid
line between the heat
exchanger and liquid line
solenoid valve.
Thermistor defective Refer to CHECK
PROCEDURE under
“Thermistor.”
Flooding expansion valve Replace expansion valve.
Refrigerant overcharge or
undercharge
Recover and weigh in
nameplate charge.
Low ambient temperature Verify ambient temperature
remains above 45°F
(7.2°C).
Defective compressor Replace compressor.
Insufficient or low water
pressure
Verify water pressure is
between 20 and 80 psig.

Manitowoc QF0400 Specifications

General

Brand	Manitowoc
Model	QF0400
Category	Ice Maker
Language	English