Question about Bosch 22 in. SKT5108 Free-standing Dishwasher
Re:"Have been told on-line to try to turn the motor (blades, I suppose)"
Someone has probably told you to energize the impeller pump motor directly by jumping its contacts to find out if the motor is working. That is a delicate test that for safety reasons must be done by a a technician. Moreover before energizing the pump more parts must be tested.
Ensure that the machine is filling properly. Double check inlet(s). It is important to check hot and cold if machine has dual inlet. If the hot inlet is not filling, then the machine will only fill cold first, and will not progress as temperature is not reached. Ensure that both hoses are connected, that they have pressure, that they are not bent or clogged. Eventually do a test swapping the two inlets. If the machine does not fill at all, then the hot inlet was the problem, you may need to replace the valve.
The inlet valve is tested in full by reading Ohms and Volts at valve solenoid contacts.
Check the water level float switch. If it stuck on high, or if the switch stays open (read Ohms after disconnecting power), then the switch must be replaced.
Check again water temperature. If the water is warm , machine fills at right level, but motor does not start, then other possible cause may be the thermostat. Thermostat is tested reading Ohms at temp, after removing thermostat from circuit. If the thermostat is Ok it will read zero or low impedance at room, if it is bad, it will return infinity (open).
If water is cold, then check either dual inlet valve (hot), or if machine is single inlet and self heating, test the heating element. If the heating element has no continuity (circuit open), then the element must be replaced.
Posted on Jul 06, 2010
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Posted on Jan 02, 2017
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