Taylor C708 Operator's Manual page 28

USER INTERFACE
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
> WASH TO BRUSH CLEAN
Pressing the SEL key will display the following
screen:
FREEZER LOCKED
2. The following screen will display if there has been a
5
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
If the machine has hard locked and an attempt is
made to enter Auto mode, the machine will enter the
Standby mode and display the following message:
FREEZER LOCKED
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.
5-6
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 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. 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:
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.
Following are the variable messages for soft lock failures
that appear on the second line of the screen:
POWER SWITCH OFF Power switch was in the OFF 
MIX OUT PRESENT
AUTO OR STANDBY
OFF
NO HEAT CYCLE
TRIED
If the following screen appears, a soft lock has occurred
during the Heat Treatment Cycle:
Models C708 & C716
position.
There was a mix out condition
present.
The machine was not in the Auto
or Standby mode.
A Heat Treatment Cycle was not
attempted in the last 24 hours.
(AUTO HEAT TIME was advanced
or a power loss was experienced
at the time the cycle was to occur.)
User Interface