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HomeRepair HelpThermador Dishwasher RepairThermador Dishwasher leaking from motor area Repair
Thermador Dishwasher leaking from motor area
If your Thermador dishwasher is leaking from motor area, start by pinpointing exactly where the water is coming from. In most cases, a dishwasher leaking from pump area or under motor is caused by a worn motor shaft seal, so the shaft seal or a seal kit is the first place to check. If your model uses a combined impeller and seal kit, that is the next most likely fix and is often more practical than replacing larger components. If the leak is more severe, the motor shaft is rusted, or the kit is not sold separately, the pump and motor assembly may need to be replaced. After that, inspect the water inlet valve for cracks and check the drain hose for splits, holes, or a loose connection at the drain pump outlet. A Thermador dishwasher leaking under motor can usually be traced to one of these parts. Enter your model number on RepairClinic.com to find the exact shaft seal, impeller and seal kit, pump and motor assembly, water inlet valve, or drain hose that fits your specific dishwasher.
01 - Thermador Dishwasher Shaft Seal
First, try to determine the source of the leak. If the water is leaking from the motor shaft area, the motor shaft seal is likely defective. If the seal is defective, replace it. (Some manufacturers sell the seal independently of the impeller. Other manufacturers require that you purchase the impeller and seal together. Still other manufacturers require that you purchase the entire pump and motor assembly instead of the impeller and seal. It is more cost effective to replace the seal kit rather than the impeller and seal.)
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Top Solution
02 - Thermador Dishwasher Impeller and Seal Kit
First, try to determine the source of the leak. If the water is leaking from the motor shaft area, the motor shaft seal is likely defective. If the seal is defective, replace it. (Some manufacturers sell the seal independently of the impeller. Other manufacturers require that you purchase the impeller and seal together. Still other manufacturers require that you purchase the entire pump and motor assembly instead of the impeller and seal. It is usually more cost effective to replace the impeller and seal kit rather than the pump and motor assembly.)
Top Solution
03 - Thermador Dishwasher Seal Kit
First, try to determine the source of the leak. If the water is leaking from the motor shaft area, the motor shaft seal is likely defective. If the seal is defective, replace it. (Some manufacturers sell the seal independently of the impeller. Other manufacturers require that you purchase the impeller and seal together. Still other manufacturers require that you purchase the entire pump and motor assembly instead of the impeller and seal. It is more cost effective to replace the seal kit rather than the impeller and seal.)
Top Solution
04 - Thermador Dishwasher Pump and Motor Assembly
If the dishwasher is leaking water from the motor area, the entire pump and motor assembly need to be replaced. First, try to determine the source of the leak. If the water is leaking from the drain pump, the impeller and seal is likely the cause. On most dishwashers, you can replace the impeller and seal kit independently of the drain pump. However, if you do not want to disassemble the pump, or if the impeller and seal kit is not available separately, you can replace the entire pump and motor assembly. In addition, if the motor shaft is rusted and the new impeller won’t fit onto the shaft, replace the pump and motor asse...
Highly Likely
05 - Thermador Dishwasher Water Inlet Valve
A dishwasher's water inlet valve opens following a short drain cycle to fill the tank with water in preparation for the wash cycle. If the inlet valve is cracked or damaged, the dishwasher can leak water near the motor area beneath the dishwasher tank.
Common
06 - Thermador Dishwasher Drain Hose
A dishwasher leak near the motor area could be caused by damaged drain hose. Confirm the hose is secured to the drain pump outlet port and check for any cracks or holes in the hose itself. Replace a damaged drain hose with a new one.
Common
Frequently Asked Questions
Why is my Thermador dishwasher leaking from the motor area?
Do I need to replace the whole pump and motor assembly if my Thermador dishwasher is leaking from the pump area?
Can a water inlet valve or drain hose cause a Thermador dishwasher leak underneath?
How do I find the right shaft seal, seal kit, or pump part for my Thermador dishwasher?
Is a dishwasher leak from the motor area something I can fix myself?
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