What Self-Test Means
The 800-era IF column guide describes an appliance self-test: messages show in turn, and if a problem is found the ALARM symbol comes on with an error message (the guide gives a sensor error as its example). If everything passes, the set temperature returns.
Common Causes of Self-Test
- A temperature sensor out of range
- Another monitored part the control flagged during the test
🔧 One Safe Check You Can Try
Run it as Thermador describes: switch off and wait 5 minutes, switch on with the door closed, then hold SETUP and ALARM OFF together for 5 seconds. Write down any message shown at the end.
⚠ Why You Shouldn't Go Further Than That
- Thermador's instruction is to pass the error message to a servicer; the self-test identifies a part but does not fix it.
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.