25
Models C708/C709/C716/C717
Controls, Systems and Operations
HOPPER THERMISTOR BAD* - Place the power
switch in the OFF position. Replace the hopper
thermistor probe.
BARREL THERMISTOR BAD* - Place the power
switch in the OFF position. Replace the barrel
thermistor probe.
*Note: Three codes have been set up to assist in
diagnosing bad thermistor probes. If a probe has
shorted (resistance less than 1 ohm), “SHRT” will be
displayed on the screen for its respective machine
location. If the probe is open (resistance above 1
megohm), “OPEN” will be displayed. If the actual
probe environment exceeds 200 °F (93°C), the
respective screen display location will read “OVER”
indicating the temperature is “out of range”.
COMP ON TOO LONG - The compressor run time
exceeded the 11 minute timer.
Lockout History
The LOCKOUT HISTORY screen displays a history
of t he last 40 soft locks, hard locks, brush clean
dates, or aborted heat cycles. Page numbers are
indicated in the upper right hand corner. Page 1
always contains the most recent failure.
LOCKOUT HISTORY 1
00/00/00 00:00
Reason
> Exit
The second line of the screen displays the date and
time a failure occurs. The third line indicates the
reason for a failure, or will indicate if a successful
brush cleaning has occurred. Some failures occur
with multiple reasons. When this occurs, a page will
be generated for each reason.
Use the arrow symbols to advance forward or move
backward to view each screen. Listed below are the
variable messages that may appear.
Faults Occurring Entering a Heat Treatment
Cycle
POWER SWITCH OFF - The power switch is OFF.
AUTO OR STBY OFF - The control was not in the
AUTO or STANDBY mode.
MIX OUT FAILURE - A Mix Out condition was
present.
NO HEAT CYCLE TRIED - The Auto Heat Time
was set to attempt a heat cycle more than 24 hours
after the last successful heat cycle.
Faults Occurring While in Heat Mode
HEAT MODE FAILURE - The maximum allowable
heat mode time exceeded 90 minutes.
COOL MODE FAILURE - The maximum allowable
cool mode time exceeded 90 minutes.
TOTAL TIME FAILURE - The maximum allowable
total heat treatment time exceeded 4 hours.
BRUSH CLEAN TIMEOUT - The total days in
operation exceeded the brush clean cycle setting.
POWER SWITCH OFF - The power switch was
turned OFF during the heat cycle.
POWERFAILINH/C-A power failure occurred
during the heat treatment cycle.
MIX LOW FAILURE - The mix level in the hopper is
too low for a successful heat cycle.
BEATER OVLD H/C - The overload tripped for the
beater motor.
BRL THERM FAIL - The thermistor sensor for the
freezing cylinder failed.
HOPPER THERM FAIL - The thermistor sensor for
the hopper failed.
HPCO H/C - The high pressure switch opened
during the heat treatment cycle.
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