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Genuine OEM Replacement Part
5304504077 Frigidaire Dishwasher Pressure Sensor Switch – Fix Overfill, Incomplete Fill, or Erratic Cycles
OEM Frigidaire / Electrolux | Controls Water Level Detection | New & Used Options
If your Frigidaire dishwasher is overfilling, not filling to the right level, stopping mid-cycle, or running erratic wash sequences — the pressure sensor switch is one of the most likely causes. The 5304504077 is the OEM replacement that restores accurate water level detection and gets your dishwasher cycling correctly again.
The pressure sensor switch monitors water pressure inside the dishwasher tub as it fills. When the water reaches the correct level, the pressure change triggers the switch, signalling the control board to stop filling and advance to the wash cycle. A failed switch causes the dishwasher to overfill, underfill, or lose track of where it is in the cycle entirely.
Fits select Frigidaire and Electrolux dishwasher models. Contact us with your model number to confirm compatibility before ordering.
Disconnect power before servicing. The pressure sensor switch is typically located behind the lower access panel near the sump area. Disconnect the wiring harness and pressure hose from the old switch, install the new switch in the same position, reconnect the harness and hose, and reassemble. Run a test cycle to confirm correct fill level and cycle progression.
Pro Tip
Before replacing the pressure sensor switch, check the small rubber pressure hose that connects the switch to the sump — a cracked, kinked, or disconnected hose is a common cause of pressure sensing failure and is a free fix. Also inspect the hose for mineral buildup that can block the pressure signal. If the hose is clear and intact, then the switch itself has failed and needs replacement.
Not sure about your model number? Call 1-877-899-7278 and we’ll help you confirm. All brand names are the property of their respective owners and are used for compatibility reference only.