Dishwasher Water Inlet Valve Replacement

简介

The water inlet valve controls the flow of water into the dishwasher tub, and is solenoid- operated. The typical issues associated with water inlet valve failure are:

The dishwasher will run, but no water will enter the dishwasher.
The dishwasher will overfill and leak onto the floor.
When the dishwasher is off, water still enters the tub.
The dishes are not clean or not enough water enters the tub.

When dealing with these issues, perform the following steps:

Verify the problem. Verify the problem by operating the dishwasher through its cycles. Listen carefully, and you will hear if the water is entering the dishwasher. On electronic models, turn off the electricity to the appliance and wait for two minutes before turning it back on. If a fault code appears, look up the code. If the dishwasher will not power up, locate the technical data sheet behind the control panel or under the tub of the dishwasher for diagnostics information. On some models, you will need the actual service manual for the model you are working on to properly diagnose the dishwasher. The service manual will assist you in properly placing the dishwasher in the service test mode for testing the dishwasher functions.
Check for external factors. You should check for external factors not associated with the appliance. Is the appliance installed properly? Is the voltage supply correct for the dishwasher? Is the water turned on all the way? The voltage at the receptacle is between 108 volts and 132 volts during a load on the circuit. Do you have the correct polarity?
Disconnect the power. Before working on the dishwasher, disconnect the power. This can be done by pulling the plug out of the wall receptacle. Be sure that you only remove the dishwasher plug. Double-check to ensure that the electrical supply has been disconnected before removing any service panels. Another way to disconnect the electricity is at the fuse panel or the circuit breaker panel. Turn off the electricity.

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步骤 1 Remove the bottom panel

In order to gain access to the water valve, the bottom panel must be removed
The bottom panel is held on with either two or four screws, depending on the model.
Remove the screws, and remove the panel.

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步骤 2 Remove the wire leads

In order to check the solenoid coil on the water valve, remove the wire leads that connect to the solenoid coil from the wire harness
These are slide-on terminal connectors attached to the ends of the wire—just pull them off.

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步骤 3 Test the water valve

Using the ohmmeter, set the range on R × 1000, and place the probes on the solenoid coil terminals
The meter should read between 700- and 900-ohms resistance. If not, replace the water valve.

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步骤 4 Inspect the inlet screen

If this screen is filled with debris, it must be cleaned out
Be careful not to distort the screen.
Use a small flat-blade screwdriver and pry out the screen. Then wash out the screen, making sure that all of the debris is removed
Reinstall the screen.

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步骤 5 Remove the water valve

Before removing the water valve, turn off the water supply to the dishwasher.
Disconnect the water supply line from the inlet end of the water valve and remove the fill hose from the outlet side
Remove the screws that hold the water valve to the chassis of the dishwasher
To install the new water valve, just reverse the disassembly procedure and reassemble.
Check for water leaks. If none are found, reinstall the bottom panel and restore the electricity to the dishwasher.