Manitowoc QC0700, Technician'S Handbook

Page: 123 / 292

Part Number 80-1230-9 10/10 123
QF0400/QC0700/QF0800/QF2200/QF2300
SafeGuards
• No Water
• Gear Motor Speed is Incorrect
• Discharge line temp. is too high or low during the
freeze cycle.
NO WATER SAFEGUARD
During the Freeze cycle if the water level probe opens
or remains open for more than
90 continuous seconds*, the ice machine:
1. De-energizes the compressor and/or gear motor.
2. Continuously flashes the Water Level Probe light.
3. Initiates a 60 minute Standby Mode.
During the Standby Mode the Water Level Probe light
will continually flash to indicate a Standby Mode.
After the 60-minute Standby Mode, the ice machine
will de-energize the Water Level Probe light and
initiate a start-up sequence.
Water contacts the water level probe:
The ice machine will continue to make ice.
Water level probe opens or remains open for more
than 90 continuous seconds*:
The ice machine will start another 60-minute Standby
Mode.
The ice machine repeats the above sequence until:
• Water contacts the water level probe.
or
• The toggle switch is moved to the OFF position.
NOTE: There are 2 control boards one remains open
for 90 seconds and the other for 30 seconds.
Replacement boards will have the 30 second time.
Indicator Light
Before 48 hours have elapsed:
After a Standby Mode has been initiated the Water
Level Probe light will flash anytime the toggle switch is
placed in the OFF position.
After 48 hours have elapsed: