Dishwasher Troubleshooting Tips For Leaks

Posted on: 5 January 2021

Your dishwasher reduces the amount of cleaning you need to perform after large family meals. But with improper or excessive use, water may start to leak from the appliance. Before hiring a technician to inspect and fix the machine, perform some troubleshooting techniques.

The Water Inlet Valve

The water inlet valve, wash arm assemblies, and seal are critical parts that may have become damaged and require replacement materials. First, shut off the water supply and inspect the water inlet valve. This part is where water is released from when you turn your dishwasher on. If the valve remains open during the wash cycle, water will fill up inside of the dishwasher and will eventually seep from the equipment, due to the volume of the water. A valve that is not functioning properly will need to be replaced.

The Arm Assemblies

Inside the dishwasher, you'll see arm assemblies that spray water onto dishes and silverware that are loaded in the dishwasher. The positioning of the arms is in conjunction with the location of the interior racks. The arm assemblies may have cracked, resulting in water spraying out excessively and forcing water through the bottom of the dishwasher.

Plastic arm pieces should not be glued or taped together, since glue could contaminate the water being used to clean dishes and tape would likely fall off of an arm. Arm replacements can be ordered directly through the manufacturer. Until you have received replacement pieces, switch back to washing dishes by hand. For loose arm assemblies, use a screwdriver or a wrench to tighten hardware.

The Seal

The seal is the rubber piece that runs around the backside of the door. It consists of two pieces that press together when the door is closed. If either side of the seal is torn or if a section of the seal has stretched excessively, there will be a slight gap when the dishwasher's door is closed and this will result in water leakage.

A torn or old seal should be removed and replaced. You will notice that the seal design is similar to a refrigerator's. Sliding the seal off and installing a new one can be tricky since you will need to slightly stretch the rubber so that it slides around the track where it will permanently rest. Take your time performing this repair, to ensure that the seal is adequately lined up.       

For more insight, contact Thermador repair services.