What E Means
Thermador documents any "E" plus a number on a microwave or speed oven display as indicating a malfunction has occurred, without one universal meaning published per number.
Common Causes of E
- A control-board problem flagged during operation
- A magnetron or heating-circuit problem (on speed ovens, potentially the convection element)
- A sensor problem tied to a specific function
🔧 One Safe Check You Can Try
Note the exact code shown, disconnect the appliance from power at the fuse box, and contact Thermador support with that code.
⚠ Why You Shouldn't Go Further Than That
- Thermador's own guidance for an unlisted code is to disconnect power and call support directly rather than attempt a DIY diagnosis.
- Magnetron and high-voltage microwave parts carry real shock risk even when unplugged, due to capacitor charge retention.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.