Thermador Dishwasher Error Codes
This guide decodes Thermador Dishwasher Error Codes and shows what to do first. We map each alert to real causes—drain/leak paths, heater/thermistor, circulation modules, door/float sensors, control boards, Home Connect—and outline quick checks vs. brand-level diagnostics to fix the root cause and clear the code the right way. If the code keeps returning or the dishwasher is not working properly,call (281) 916-3118 or schedule an appointment with Houston Appliance Repair.
| Error Code | Description | Severity | Info |
|---|---|---|---|
| E12 | Limescale buildup detected | Medium | Read More |
| E15 | Water in base of dishwasher | High | Read More |
| E18 | Problem with water level or water flow | Medium | Read More |
| E22 | Filter needs to be cleaned or unclogged | Low | Read More |
| E23 | Faulty, clogged, or blocked drain pump | High | Read More |
| E24 | Dishwasher not draining, or drain filter blocked | High | Read More |
| E25 | Drain pump blocked or issue with drain pump cover | High | Read More |
| E14 | Water flow problem | Medium | Read More |
| E16 & E17 | Water filling system issue | Medium | Read More |