What F14 Means
F14 means the dishwasher isn't heating the wash water to the temperature the selected program requires, which leaves grease and detergent poorly dissolved even after a full cycle.
Common Causes of F14
- Failed heating element
- Failed heating relay on the control board
- Faulty water temperature sensor giving a false reading
🔧 One Safe Check You Can Try
Check that the hot-water supply line (on models plumbed to hot water) is actually delivering hot water at the tap nearest the dishwasher — a household hot-water problem can look identical to a heater fault.
⚠ Why You Shouldn't Go Further Than That
- Confirming whether the element, the relay, or the sensor is the actual cause requires electrical testing on a component wired directly into household power.
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.