What E9001 Means
Thermador documents E9001 as the house power supply to the unit being too low.
Common Causes of E9001
- A home electrical supply issue
- An undersized circuit for the dishwasher's rated load
🔧 One Safe Check You Can Try
Reset the breaker, and have an electrician check the incoming voltage to the circuit feeding the dishwasher.
⚠ Why You Shouldn't Go Further Than That
- Confirming incoming voltage requires an electrician, not appliance-side repair.
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.