If the door latch is not properly aligned it may not pull the door tightly closed and the door switch will not be fully depressed. Unless the switch is fully depressed the dishwasher will not operate.
It is a simple matter to determine whether the door latch is the problem. Simply open the door, close the latch and select a cycle and depress the switch. Note that if the test is successful, with the door open, the dishwasher will operate and water may spray out. Make sure to first remove all tools from inside the dishwasher. Do not reach inside the dishwasher during the test. Now, inspect the cabinet where the door makes contact with it and locate the door switch. It may have a protruding button or spike or more likely it is a hole with a piece of metal or plastic inside it. You must fully depress that switch. If the switch is recessed, then use a non-conductive object, such as a wooden pencil, to depress the switch
Before testing the float switch, unplug the dishwasher or shut off the power at the fuse boxor breaker panel to avoid an electrical shock hazard.
When the water in the tub lifts the float to a set point, the float switch is triggered and it shuts off the water inlet valve, stopping the flow of water. If the float switch is defective, the tub may overfill.
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To access the float switch remove the lower panel located beneath the door. The panel is usually held in place with two screws either above or below the panel. It may be necessary to first open the door to the dishwasher to reach the screws over the panel, then close the door to remove the panel.
Note the location of the float in the dishwasher's tub and you will find the float switch beneath it in the access area. The switch has two wires connected to it. Label the wires and connections so that you can properly reconnect them later. The wires are connected with slip on connectors. Firmly pull the connectors off of the terminals (do not pull on the wire itself). You may need to use a pair of needle-nose pliers to remove the connectors. Inspect the connectors and the terminals for corrosion. If either is corroded they should be cleaned or replaced.
Use a continuity tester or multitesterto test for continuity. Set the multitester to the ohms setting X1. Touch one probe to each terminal. You should get a reading of either zero or infinity. With the probes still in place, depress the button or lever on the switch and the reading should change to the opposite extreme.
float assembly
Before testing the inlet valve, unplug the dishwasher or shut off the power at the fuse boxor breaker panel to avoid an electrical shock hazard.
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To access the inlet valve remove the lower panel located beneath the door. The panel is usually held in place with two screws either above or below the panel. It may be necessary to first open the door to the dishwasher to reach the screws over the panel, then close the door to remove the panel.
The water inlet valve can be identified by the water hoses connected to it. One hose will lead from the valve to the pump/motor assembly in the center of the dishwasher. Check that the hoses are securely connected to the valve and that there are no kinks in the hoses which could restrict water flow.
water inlet valve
water inlet assembly
water inlet assembly
water inlet assemly
Dishwashers either have a single direction motor or a reversing motor. Only those with a single direction motor have a drain valve. Models with a reversing motor, pump the water out of the dishwasher when the motor runs in the reverse direction. If your motor has two or three wires, it is a single direction motor. If the motor has four wires, it is a reversing motor and you can skip this article.
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To access the drain valve remove the lower panel located beneath the door. The panel is usually held in place with two screws either above or below the panel. It may be necessary to first open the door to the dishwasher to reach the screws over the panel, then close the door to remove the panel.
The drain valve is typically near the motor although it can be located elsewhere. Look for a water hose running from the motor or underside of the tub. The hose should lead to the drain valve. The valve consists of the the gate arm mechanism and a solenoid (also called a coil). The gate arm allows the water to flow out of the dishwasher's tub through the drain valve. You should be able to move the gate arm up and down easily and smoothly. The gate arm also has two springs attached to it. If either of the springs is missing or damaged, they should be replaced.
The gate arm mechanism is engaged by the drain valve solenoid. The solenoid is connected by two wires. Label the wire placement on the solenoid before disconnecting the wires. The wires are connected with slip on connectors. Firmly pull the connector off of the solenoid's terminals (do not pull on the wire). You may need to use a pair of needle-nose pliers to remove the connectors. Inspect the connectors and the terminals for corrosion. If the connectors are corroded they should be replaced
Test the solenoid for resistance using a multitester Set the multitester to the ohms setting X1. Place a probe on each terminal. The multitester should change from a reading of infinity to roughly 40 ohms when the probes touch the terminals. If the reading is infinity or substantially different from 40 ohms, the solenoid should be replaced.
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water inlet valve
I have found the problem it is the circuit board, thank you for your help
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