Possible Causes; Open Condenser Thermistor; Failed Water Temperature; Open Water Thermistor - Cornelius XAC 1444 Service Training Manual

7. During delay period, the DELAY LED flashes 1 times at 4 second intervals.
8. Once the machine reaches shut down, all outputs turn off.
9. At the shut down time, the ERROR LED flashes 1 times at 4 second intervals.
10. The machine will not run until the power is cycled.
11. The delay sequence resets after each successful harvest.

Possible Causes

1. Above 100_F ambient temperature
2. Fan motor failure
3. Clogged condenser
4. No water flow (water coiled condenser)

OPEN CONDENSER THERMISTOR

1. While monitoring the condenser temperature, the microprocessor also monitors for an open signal.
2. If the signal from the thermistor reads open for a continuous 19 seconds, all outputs turn off.
3. The ERROR LED flashes 7 times at 4 second intervals.
4. The machine will not run until the power is cycled, Off and On to reset the control board.
Possible Causes
1. Thermistor wire removed
2. Thermistor failure

FAILED WATER TEMPERATURE

1. After initial start–up, the microprocessor continuously monitors the water temperature.
2. If the water temperature does not reach 40_F within 5.5 minutes, all outputs turn off and the ma-
chine shuts down.
3. At. the shut down time, the ERROR LED flashes 5 times at 4–second intervals.
Possible Causes
1. Water pump failure
2. Low refrigerant charge
3. Leak in refrigerant lines
4. Compressor failure
5. Hot gas valve leaking

OPEN WATER THERMISTOR

1. While monitoring the water temperature, the microprocessor also monitors for an open signal.
2. If the signal from the thermistor reads open for 19 seconds, all output turn off.
3. The ERROR LED flashes 9 times at 4–second intervals.
4. The machine will not run until the power is cycled, Off and On to reset the control board.
Possible Causes
1. Thermistor wire removed
2. Thermistor failure
TP00952 24
Xtreme Ice Training Manual
October 17, 2005