Norge Dishwasher NDU450B Will not drain or doesn't drain

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