Manitowoc QC0700, Technician'S Handbook

Page: 106 / 292

106 Part Number 80-1230-9 10/10
AUTOMATIC SHUT-OFF
3A. Ice Run Out
Ice will build up in the bin until it contacts the bin level
probe. After ice contacts the bin level probe for 30
continuous seconds the compressor de-energizes. To
allow excess ice to run out, the gear motor and the
water float valve solenoid remain energized for an
additional 4 minutes, then de-energize.
3B. Water Drain
To allow water to drain from the evaporator, the dump
valve energizes for 45 seconds, then de-energizes.
An 8-minute lockout starts when the compressor de-
energizes. When the ice drops away from the bin level
probe the ice machine will begin an initial start-up
cycle, provided the “8-minute lockout” has expired.
8 Minute Lockout
The bin level light will flash until the 8-minute lockout
expires.
After the 8 minute lockout expires the bin level light will
de-energize.
The 8 minute lockout time can be overridden by
moving the ON/OFF/CLEAN toggle switch from ICE to
OFF then back to ICE.
Flush Sequence in the “ICE” Position
After the ice machine has run for 100 hours the ice
machine will stop making ice and perform a flush
sequence. The flush sequence will remove minerals
that have settled in the bottom of the evaporator. The
entire flush sequence lasts approximately 11 minutes,
after which the ice machine automatically resumes ice
making and the 100 hour counter in the control board
resets to zero.
Flake ice machines use an auger to remove ice from
the evaporator. Occasional noises (creaks, groans, or
pops) are normal.