What E18 Means
Thermador documents E18 as the water level being too low, or water not being pumped correctly.
Common Causes of E18
- Low household water pressure or flow rate
- A restricted inlet hose
- A water-pump part problem
🔧 One Safe Check You Can Try
Check the inlet hose for kinks, and verify your water supply meets the minimum flow rate Thermador specifies (10 l/min).
⚠ Why You Shouldn't Go Further Than That
- If your home's water flow rate genuinely doesn't meet the minimum, that may need a plumber rather than an appliance technician.
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.