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HomeRepair HelpThermador Dishwasher RepairThermador Dishwasher leaking Repair
Thermador Dishwasher leaking
If your Thermador dishwasher is leaking water, start with the most common causes at the fill and spray system. A stuck-open water inlet valve can let the tub overfill until the dishwasher leaks or overflows. Next, check the center wash arm assembly, lower wash arm assembly, and upper wash arm assembly. A cracked wash arm or loose wash arm support can spray water toward the door seal and force water out under the door, which is a common reason for a dishwasher leaking from door or leaking on floor. If those parts look good, inspect the door seal for tears, gaps, or poor contact, and check the door hinges if the door is not closing squarely against the gasket. The detergent dispenser can also cause a dishwasher leaking water problem if its seal or O-ring is worn and water is getting between the door panels. On RepairClinic.com, enter your Thermador model number to find the exact water inlet valve, wash arm, wash arm support, door seal, door hinge, or detergent dispenser that fits your specific dishwasher.
01 - Thermador Dishwasher Water Inlet Valve
The water inlet valve opens to allow water to enter the dishwasher. If the water inlet valve is stuck open, the dishwasher will continue to fill with water until the dishwasher leaks or overflows. If the water inlet valve is at fault, replace it. Water inlet valves are not repairable—if the valve is defective, you must replace it.
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02 - Thermador Dishwasher Center Wash Arm Assembly
If the wash arm is cracked, it can allow a jet of water to spray toward the door seal, causing a leak. Remove the wash arm and inspect it for cracks. If the wash arm is cracked, replace it. Do not attempt to seal the crack with glue—the glue will break down in the dishwasher. If the wash arm is intact, make sure the screws in the wash arm support are tight. If the wash arm support is loose, water can spray out between the wash arm support and the lower pump housing, causing waves. These waves can cause water to leak out of the bottom of the door.
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03 - Thermador Dishwasher Lower Wash Arm Assembly
If the wash arm is cracked, it can force water to spray directly toward the lower part of the dishwasher door. The water can then be forced under the door and onto the floor, causing a leak. Remove the wash arm and inspect it for cracks. If the wash arm is cracked, replace it. Do not attempt to seal the crack with glue—the glue will break down in the dishwasher. If the wash arm is intact, make sure the screws in the wash arm support are tight. If the wash arm support is loose, water can spray out between the wash arm support and the lower pump housing, causing waves. These waves can cause water to leak out of the bottom of...
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04 - Thermador Dishwasher Upper Wash Arm Assembly
If the upper wash arm is cracked, it can force water to spray directly toward the dishwasher door seal, causing a leak. Remove the wash arm and inspect it for cracks. If the wash arm is cracked, replace it. Do not attempt to seal the crack with glue—the glue will break down in the dishwasher. If the wash arm is intact, make sure the screws in the wash arm support are tight. If the wash arm support is loose, water can spray out between the wash arm support and the lower pump housing, causing waves. These waves can cause water to leak out of the bottom of the door.
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05 - Thermador Dishwasher Door Seal
Look for tears, gaps or cuts in the seal that could cause a dishwasher door leak. To determine if the door seal is making good contact, try closing the dishwasher door on a dollar bill all the way around the door. If the dollar bill does not stick, there is a gap in the seal. If the door seal has any gaps or leaks, replace it. If the door seal is working properly but the dishwasher is still leaking, check the door hinges. If the hinges are bent, the door will not close properly, creating a gap between the door seal and the dishwasher. If the hinges are bent, replace them.
Highly Likely
06 - Thermador Dishwasher Detergent Dispenser
A dishwasher detergent dispenser releases detergent into the tank during the wash cycle. Some dispensers with a rotating cover, or a latch, have an O-ring or seal that can wear out and allow water to leak inbetween the door panels and onto the floor near the bottom of the door.
Highly Likely
Frequently Asked Questions
Why is my Thermador dishwasher leaking from the bottom of the door?
Can a Thermador dishwasher spray arm cause a leak?
How do I know if the door seal on my Thermador dishwasher is bad?
Can the water inlet valve make a Thermador dishwasher overflow or leak?
How do I find the right replacement part for my Thermador dishwasher leak?
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