17
ModelsC708 & C716 Important:To the Operator
050628
If the Heat Treatment Cycle fails, the screen will
display a failure message and return the freezer to
the STANDBY mode.
Always comply with local guidelines for the
maximum number of days allowed between brush
clean cycles. (See the Manager’s Menu for setting
the BrushClean interval.)
Freezer Locks
There are two types of freezer lock conditions that
can occur: Hard Lock or Soft Lock. A Hard Lock
requires the machine be disassembled and brush
cleaned. A Soft Lock can be corrected by either
disassembling and brush cleaning the machine, or
by starting another heat treatment cycle.

Hardlock

There are two causes of a hard lock failure. The
freezer will hardlock if either the Brush Clean Timer
has elapsed or if a Thermistor Failure (Freezing
Cylinder or Hopper) occurred during a Heat cycle.
1. The following screen will be displayed if a Brush
Clean Cycle Time has occurred.
BRUSHCLEAN TIMEOUT
FREEZERLOCKED
CLEANINGREQ’D
> BRUSH CLEAN
Touching the SEL symbol will display the following
screen.
FREEZERLOCKED
2. The following screen will display if there has
been a thermistor failure (freezing cylinder or
hopper) during the heat treatment process.
SYSTEMFAULT
FREEZERLOCKED
SERVICEREQ’D
> BRUSHCLEAN
Touching the SEL symbol will indicate which
thermistor caused the Hard Lock.
HOPPERTHERM BAD
FREEZERLOCKED
If the machine has hard locked and an attempt is
made to enter AUTO, the machine will enter the
STANDBY mode and display the following message.
FREEZERLOCKED
To restore the message that identified the reason for
the hard lock, turn the power switch OFF for five
seconds and then return the power switch to the ON
position. The original message with the reason for
the Hard Lock will be displayed.
The FREEZER LOCKED message will remain on
the display until the brush clean requirements are
fulfilled. The freezer must be disassembled in order
to activate the five minute timer on the display
screen. Once the timer counts down to zero, the
lockout is cleared.

Soft Lock

If a heat treatment cycle has not been initiated within
the last 24 hours, a soft lock failure will occur. A soft
lock allows the operator to correct the cause of the
soft lock. The operator has the option of either
starting another heat cycle or brush cleaning the
machine. When a soft lock occurs, the machine will
go into the STANDBY mode. The following message
is displayed on the screen. The reason for the soft
lock is indicated on the second line.
NOHEAT CYCLE START
REASON
> HEAT CYCLE
BRUSHCLEAN
If the reason for the soft lock has been corrected,
selecting HEAT CYCLE initiates a Heat Cycle
immediately. Selecting BRUSH CLEAN when the
previous message is displayed will hard lock the
machine and brush cleaning will be necessary.