Water stays in the tub, the cycle stops, and E23 comes up. Thermador documents this code as a drain pump that is jammed, plugged or wearing out. Unlike a general drainage message, this one points at…
Water stays in the tub, the cycle stops, and E23 comes up. Thermador documents this code as a drain pump that is jammed, plugged or wearing out. Unlike a general drainage message, this one points at the pump itself, so the problem has been narrowed to the part that pushes the water out. That narrowing helps, because the search starts at one part instead of the whole drain system.
1. Turn the dishwasher off. 2. Remove the filter and look for obvious clogging in the sump area, rinsing the filter under the tap. 3. Refit the filter and run a short cycle to see if the water leaves. 4. If E23 returns, stop there and call us, because Thermador's guidance beyond this basic check is to contact support.
They overlap, but E23 is narrower. E22 covers a wider set of drainage suspects such as the filter and hose. E23 singles out the drain pump, so a technician starts there.
Often, yes, if debris is what stopped the pump. We clear it and test the motor. A pump that hums but does not move water, or stays silent, usually needs replacing.
A pump pushing against a blockage works hard without moving water, which is not good for the motor. It is better to stop running cycles once E23 appears.
Our technician checks it in your home and hands you a written price before touching anything.