Noble HT-180 HH, Инструкция по установке, эксплуатации и обслуживанию

Страница: 27 / 76

07610-004-26-29-E
20
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE REMEDY
Dishmachine runs
continuously in the
wash cycle. Machine is in delime mode.
Wash cycle delay timer is faulty.
Wash cycle delay timer settings are
not correctly adjusted.
Cam timer is faulty.
Change operation mode from DELIME to NORMAL position.
During the wash cycle, the cam timer will move for the fi rst 30 seconds
of the wash cycle. The cycle delay timer will then cause the cam timer to
stop, in order to increase the length of the wash cycle. The red light on
the delay timer is in control of the cam timer. If the red light is not turning
on (only during cycles B, C or D), replace the cycle timer.
If the wash cycle delay timer and rotating cam timer are working correctly,
the time cycles on the delay timer may be incorrectly adjusted. Adjust
the delay potentiometer corresponding to the B, C or D cycle. Rerun the
appropriate cycle and see if the adjustment has made any change in the
length of the cycle. If not, replace the cycle delay timer.
Con fi rm that the wash cycle delay timer is functioning correctly (see
above). Con fi rm that the timer motor is receiving power. If it is, replace
the motor and/or timer assembly. Make sure there are no obstructions
which limit the rotation of the cam timer.
Dishmachine will not
fi ll after the door is
closed. Power "ON"
light is illuminated.
Faulty rinse solenoid valve.
Faulty door switch.
Fouled/faulty high level probe.
Repair or replace valve as required.
Verify the wiring of the switch; if correct, replace the switch.
Clean probe if fouled. If clean and not working, replace.
Dishmachine will not
fi ll after the door is
closed. Power "ON"
light is not illuminated.
Service breaker tripped.
Machine not connected to power
source.
Faulty power source.
Reset. If the breaker trips again, contact an electrician to verify the amp
draw of the machine.
Verify that the machine has been properly connected to the power
source.
Verify the wiring of the switch; if correct, replace switch.
Dishmachine will not
fi ll after the door is
closed. Power "ON"
light is not illuminated.
Service breaker tripped.
Machine not connected to power
source.
Faulty power source.
Reset. If the breaker trips again, contact an electrician to verify the amp
draw of the machine.
Verify that the machine has been properly connected to the power
source.
Verify the wiring of the switch; if correct, replace switch.
Wash or rinse heater
does not work. Faulty heater element.
Faulty heater contactor.
Misadjusted/faulty thermostat(s).
Check element for continuity; if open, replace the heater.
Replace the contactor.
Verify the operation and setting of thermostats; replace if necessary.
Dishmachine fi lls
slowly and/or rinse is
weak.
Clogged or obstructed rinse arms.
Low incoming water pressure.
Y-strainer is clogged.
Remove and clean the rinse arms.
Adjust the water pressure regulator to ensure that there is 20±5 PSI fl ow.
Clean out the Y-strainer.
Rinse water is not
reaching required
temperature. Faulty rinse heater.
Misadjusted/faulty thermostat(s).
Rinse thermometer is defective.
Check element for continuity; if open, replace heater.
Verify operation and setting of thermostats; replace if necessary.
Replace thermometer.