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XII. TROUBLESHOOTING
POTENTIAL CAUSE SOLUTION
a. No power to unit. Check power supply and circuit breaker.
b. System problem. Call for service.
a. Door not closed properly. Close door completely.
b. Too much product loaded. Adjust the load to not exceed capacity of the unit.
c. Excessive product depth. Reduce pan load.
d. Pan has been covered with a lid, plastic Cover product correctly.
wrap or foil, and this is not in direct contact
with the product.
e. Product loaded is of a high density. Allow additional chilling time.
f. Dirty condenser coil. Clean condenser coil.
g. Evaporator coil iced. Allow chiller to defrost.
a. Probe not available. Press DONE to release probe for use.
b. Probe not placed in product. Place probe in product.
c. Food probe placed in product below 90° F. Manually program cycle and select probe.
d. Damaged or defective food probe. Replace with new food probe.
a. Door open. Close door.
b. Hot product inside but no probe placed. Press CANCEL then place probe to start cycle.
a. Previously chilled product not removed. Remove DONE product before starting a new chill cycle.
b. Chill cycle By Time set for too long. Reduce cycle time.
c. High water content food (ex. soup). Use DELICATE method.
a. Food chilled uncovered. Cover food before placing in chiller.
a. Printer out of paper. Replace paper.
b. Paper loaded incorrectly. Replace paper with thermal side up.
c. Feed roller tension arm open. Close feed roller tension arm.
d. Paper jam. Correct paper jam.
e. Printer malfunction. Replace printer.
a. Door out of alignment or gasket issue. Check door alignment and gasket for proper seal.
b. Door sweep worn/out of adjustment (TBC1H). Adjust/replace door sweep.
c. Electric door heater malfunction. Call for service.
a. Varied product temps within batch. Verify actual product temp using a manual thermometer.
b. Probe placed incorrectly. Relocate probe.
c. Small mass product (ex. chicken tender). Use chill by time.
d. Product held at room temp too long. Verify actual product temp using a manual thermometer.
a. Main circuit breaker open. Close breaker.
b. Fuse open on control power supply. Replace fuse.
c. Internal circuit breaker open. Close internal breaker.
d. Control power supply malfunction. Replace control board.
e. Main ON/OFF switch OFF. Switch power to ON position.
a. Low incoming voltage. Remedy power supply issue.
b. Start component malfunction. Replace start capacitor.
c. Compressor windings shorted. Replace compressor.
d. Locked rotor. Replace rotor.
e. Excessive head pressure. Requires additional diagnosis to determine cause.
a. Coil sensor failure. Replace sensor.
b. Incorrect wiring. Conrm and correct wiring.
c. Incorrect defrost settings. Adjust defrist settings as needed.
d. Defrost heater malfunction. Replace defrost heater.
a. Improper air ow over evaporator coil. Look for ice formation.
b. Expansion valve malfunction. Replace TXV.
c. Low ambient conditions. Relocate chiller to warmer environment.
d. Low pressure control inoperative. Replace low pressure control.
e. Failed air sensor. Replace air sensor.
f. Control malfunction. Replace control board.
g. I/O board malfunction. Replace I/O board.
h. Solenoid valve malfunction. Replace solenoid valve.
a. Obsolete software. Update latest operating system software.
b. Calibration off. Recalibrate touchscreen.
SYMPTOM
1. No display on control.
2. Batch requires too much
time to chill product down
to temperature or time
target.
3. Auto mode does not
appear to work when
placing probe in hot
product.
4. Chill cycle starts with no.
product present
5. Unwanted product freezing.
6. Food drying out during
chilling.
7. Printer not printing.
8. Condensation on exterior
surface.
9. Upon starting a chill cycle,
the product temperature
displayed appears cooler
than expected (cooked)
temperature.
10. Nothing runs, blank
controller.
11. Compressor will not run,
current draw trips overload.
12. Defrost time too long
(exceeds 50-minutes),
13. Compressor short cycles.
14. Control response to touch
appears slow.
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