Troubleshooting - Omniwash ST series Instruction Manual

EN
PROBLEM
The machine doesn't start
Water in the wash tank does not
stop filling
The wash tank doesn't fill or
machine is not rinsing
The wash tank fills very
slowly
The water is not heating
The tank doesn't drain
The washing results are not
good
Glasses and plates do not dry
well
Condensation on the glassware
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER

TROUBLESHOOTING

1) Make sure the electrical power is "ON".
2) Check that power is ON at the ON/OFF switch.
3) Check that the door is properly closed and that the micro switch is correctly operating.
4) Check that the tank water level pressure switch and the solenoid valve are working.
1) Check tank water level pressure switch.
2) Check that the air pressure switch is not obstructed.
1) Check that the water inlet tap.
2) Check that the "ON - OFF" switch is ON.
3) Check that the "0-1" switch is on position 1.
4) Check that the water overflow is installed correctly.
5) Check that the wash jets and wash arms are not blocked by lime scale or soil.
6) Check if there is some water in the air gap. Remove the drain overflow and drain tank com-
pletely. If the fault is not solved, replace the pressure switch.
7) Check that the water solenoid valve opens and closes correctly. If it not replace it.
1) Check the water inlet tap is correctly open.
2) Check that the inlet water supply pressure is at least 2 bar. If not, we suggest to install a
booster pump.
3) Remove the water supply hose, check that the solenoid valve filter is not clogged with dirt
or sand.
4) Check that the rinse jets are not restricted with lime scale or soil.
5) Check that the overflow is properly inserted.
6) Remove the flow reducer.
1) Let water enter into the tank while ensuring that the overflow is properly inserted.
2) Check that the tank and boiler heating elements are properly working.
3) Check that safety thermostats have not interrupted current.
1) Drain pipe can be blocked by a solid body. Remove it from the drain pipe or, if required,
replace the pipe.
1) If the filter basket (in front of the wash pump) is dirty, clean it thoroughly.
2) Check that the wash arms and jets are not restricted by soil.
3) Verify that the detergent container is not empty and detergent is being taken into the wash
tank.
4) The wash cycle may be too short when washing heavily soiled ware. Repeat wash cycle.
5) Verify that the wash tank water is at the right temperature.
6) Verify that the wash arm rotates freely.
1) Check manufacturer instructions for the correct dosage of rinse aid product.
2) Check the amount and quality of product used. (Results are improved when using softened
or demineralized water).
1) The glassware must be racked correctly in the basket.
2) Check quality and quantity of rinse aid product.
3) Insufficient detergent or low quantity of product used. We suggest to check and if neces-
sary, to adjust it.
SOLUTION
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