The MDB4709PAW is a built-in dishwasher with a small number of well-known failure points, and the drain pump, check valve or sump filter heads that list. The plate also dates the machine, which matters when deciding whether a repair is worth doing.
This one is isolate first, inspect second: power off at the breaker, then clearing the filter, checking the spray arms spin and loading properly, then a technician for anything further.
Key Features
- Built-in 24-inch dishwasher cavity
- Upper and lower spray arms fed from one pump housing
- Filtration at the sump on later builds
- Heated dry option on most variants
Most Common Issues on This Model
Standing water left in the sump at the end of a cycle
Dishes coming out wet on a heated-dry cycle
Control panel buttons responding intermittently
Detergent cup not opening during the wash