Maytag Dishwasher DWC7400AAW Won't start or doesn't start

The Door Latch Assembly is an OEM replacement part for Whirlpool dishwashers. It securely fastens the dishwasher door closed during wash cycles to contain water, detergent, and wash motions within the tub. This dishwasher door switch assembly does not include the handle. It includes two switches and a holder.

Over time, latch components can wear from continual use and lose their ability to lock the door. Exposure to water and detergent may also cause corrosion or cracking.

Symptoms of a bad door latch assembly include:

• The dishwasher door not closing fully or securely during cycles  
• Gaps around the door allowing water and air leakage
• The door popping or opening unexpectedly mid-cycle
• Dishwasher will not start

This Whirlpool part fits dishwashers from Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, and select Kenmore models.

This water level switch senses the dishwasher's tub float and controls the water inlet. Replacing a worn switch restores correct filling, helping prevent overfilling or dry cycles that can reduce cleaning performance. What it does:

• Monitors the float position to open/close the fill circuit at the proper water level
• Common symptoms: dishwasher won't fill or stops filling too soon
• May also cause continuous filling/overfill if contacts are stuck closed
• Intermittent operation can leave the tub underfilled and washing performance poor

• 1 water level (float) switch

• Disconnect power and shut off the water supply before servicing
• Remove the toe/kick panel to access the switch near the float assembly under the tub
• Note wire positions; transfer connectors one at a time and secure the switch in its bracket
• The float moves freely and actuates the switch before reassembly and testing