What F:45 Means
F:45 is a spray arm diverter error on DDW24S and RDW24 dishwashers. The position switch reads always closed or always open, so the machine cannot confirm which spray arm it is feeding. The cycle continues.
Common Causes of F:45
- Diverter gearbox failing
- Position switch failure
- Diverter wiring
🔧 One Safe Check You Can Try
Make sure nothing blocks the spray arms and that the upper rack sits correctly on its water inlet. If one rack washes poorly, book service.
⚠ Why You Shouldn't Go Further Than That
- Dacor’s check covers the gearbox, switches and cables, reached from under the tub.
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.