Question about Hotpoint Dishwashers
Ensure that the inlet hose at the back of the machine is not kinked or blocked, and ensure that there is enough water pressure.
Parts to be tested are inlet valve and overfill switch.
If those parts are OK, then it is probably a faulty timer board. Before declaring the timer board culprit check the door switch in case it is cutting intermittently, and check the thermostat (I know cold cycle is good).If all those are OK, replace the timer board.
If the valve is dual, then it can be tested swapping the contacts for hot and cold inlet and noticing if that makes any difference. If the swapped contact valve does not fill at all, then the hot valve is gone. If it goes regularly (slightly underfilling), then the cold is gone. If the valve is dual you replace the part alltogether.
Full test on valve is done reading Ohms at both solenoid contacts, and reading volts while cycling.
The overfill switch is usually a float sensor driven switch. This is tested jumping contacts and running a controlled cycle.
Door switch is also tested jumping contacts.
Some machine have an overfill device located under the bottom panel (eg. the aquastop). In that case disconnect power, remove water completely and empty the overfill device.
If all the above is OK, then go for the control board. Before replacing control board test also thermostat and pump. Thermostat is tested jumping contacts. Pump is tested energizing. This parts are probably not involved, but since there is no tech to test timer board by reading voltage out, better testing everything before eventually replacing timer.
Always disconnect power before performing any maintenance. Limit testing to operation that can be done with power off.If you need to call a technician, use the number listed in the user manual.
See here how to locate parts and diagrams : Where do I find parts and diagrams?
Posted on Oct 07, 2010
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Posted on Jan 02, 2017
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