Dacor Dishwasher E4 Error: Overflow / flood sensor
Dacor dishwasher error code e4 — essential information for Dacor appliance owners. This dacor dishwasher e4 error code guide explains what this fault means for your Dacor appliance and how to respond safely. What E4 Means The E4 code means the anti-flood protection system has activated. Either the water level inside the tub exceeded the […]
~25%
DIY Fixable
From $195
Typical Repair Cost
60-120 min
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Maybe. Close the water supply valve immediately. Running the dishwasher with a stuck fill valve risks kitchen flooding.
Can I reset the code?
Yes. Closing the supply valve and running a drain cycle resolves the immediate overflow. The stuck valve needs replacement to prevent recurrence.
When to stop immediately?
Stop if you notice: Water is pooling on the kitchen floor, The drain pump runs but water level inside does not drop.
Symptoms You May Notice
Dishwasher overfills with water
The tub fills higher than normal, sometimes to the point where water is visible above the door sill when opened.
Water does not stop filling
The fill valve continues to let water in even after the expected fill time has elapsed and the E4 code appears.
Water on kitchen floor near dishwasher
Overfilling causes water to overflow through the door seal or air gap, creating a puddle around the base of the unit.
E4 appears early in the wash cycle
The fault triggers during the initial fill phase or at the beginning of a rinse fill, within the first 5-10 minutes of cycle start.
Possible Causes
Stuck-open water inlet valve
The solenoid-operated fill valve has failed in the open position due to mineral deposits or electrical failure, allowing continuous water flow.
DIY PossibleFailed water level sensor (pressure switch)
The sensor that detects water level in the tub is not sending the full signal to the control board, so the board never commands fill to stop.
Requires ProfessionalSafe Checks You Can Do
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1
Turn off water supply immediately
Locate the hot water shutoff valve under the kitchen sink (usually a quarter-turn ball valve on the dishwasher supply line) and close it to stop water flow.
If water continues entering the dishwasher after the supply valve is closed, the valve itself needs replacement.
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2
Run a drain cycle
With the supply valve closed, try to start a drain-only cycle or press cancel/drain to pump out the excess water before it overflows.
If the dishwasher will not drain, disconnect power and use towels to absorb standing water.
When to Call a Professional
Contact a qualified technician if:
- Base pan float switch is wet and fault returns after drying
- Inlet valve does not close and tub continues to fill on its own
- Internal hose or tub seal is leaking and requires disassembly
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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