Thermador Error Codes

What the most common Thermador fault codes point to — and the appliances they appear on.

Error code reference

The main codes, explained.

Codes vary by model and series — treat this as a guide, not a diagnosis.

E15 Leak detected — anti-flood (Aquastop) tripped Dishwasher E01 Heating circuit fault Dishwasher E09 Flow-through heater fault Dishwasher E22 Filter blocked or drain restricted Dishwasher E23 Drain pump jammed Dishwasher E14 Flow meter or water-inlet fault Dishwasher E03 Not filling — water-inlet valve Dishwasher E25 Drain hose or pump-cover fault Dishwasher ER Touch panel or program fault Dishwasher F2 Cavity over-temperature Microwave F3 Keypad or membrane fault Microwave F34 Door interlock switch fault Microwave SE Humidity or temperature sensor fault Microwave MAG Magnetron or high-voltage circuit fault Microwave TRN Turntable motor fault Microwave PWR No power or blown thermal fuse Microwave E1 Water-circuit or flow fault Coffee Machine E2 Heating or thermoblock fault Coffee Machine E3 Brew-unit jam or position fault Coffee Machine E4 Grinder jammed Coffee Machine E8 Drip tray missing or full Coffee Machine E9 Water tank empty or not detected Coffee Machine DESCALE Descale reminder or valve fault Coffee Machine LEAK Internal leak detected Coffee Machine

A flashing code points to a likely area, not the exact part. We confirm the real cause on site and quote a flat rate before any work begins.

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