Freezer Locks - Taylor Wawa C708 Operator's Manual

Freezer Locks

Two types of freezer lock conditions 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.
Hard Lock
There are two causes of a hard lock failure. The freezer
will hard lock 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:
BRUSH CLEAN TIMEOUT
FREEZER LOCKED
CLEANING REQ'D
> BRUSH CLEAN
Pressing the SEL key will display the following
screen:
FREEZER LOCKED
2. The following screen will display if there has been a
thermistor failure (freezing cylinder or hopper) during
the Heat Treatment process:
SYSTEM FAULT
FREEZER LOCKED
SERVICE REQ'D
> WASH TO BRUSH CLEAN
Pressing the SEL key will indicate which thermistor
caused the hard lock.
HOPPER THERM BAD
FREEZER LOCKED
User Interface
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:
To restore the message that identified the reason for the
hard lock, turn the power switch off for 5 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 5-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 third line.
NO HEAT CYCLE START
REASON
> HEAT FOR HEAT CYCLE
WASH TO BRUSH CLEAN
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.
Model C708 - WAWA
USER INTERFACE
FREEZER LOCKED
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