What this code means
The E6 (or F6/E6) error code on Whirlpool dishwashers indicates a water fill or incoming water supply problem. The control board is not detecting the expected water entering the machine, which it interprets as a water tap closed or insufficient supply condition. On some models the same code can also signal incoming water that is too cold, so always verify the exact definition on your unit’s service tech sheet or diagnostic display before ordering parts. The common interpretation across Whirlpool dishwasher documentation is a water supply fault that prevents normal fill.
Before You Replace Anything
Many people replace the water inlet valve first. Before buying the valve, verify the house shutoff is fully open, check for kinks or blockage in the inlet hose, and clean the inlet screen to confirm water can actually reach the valve.
Common Causes
- House water shutoff not fully open The supply valve under the sink is turned off or only partially open, preventing water from reaching the dishwasher inlet.
- Kinked or pinched inlet hose The hose between the wall shutoff and dishwasher is bent, crushed, or blocked, restricting water flow.
- Clogged inlet screen or filter Sediment, mineral deposits, or debris have accumulated in the screen at the valve connection, blocking water entry.
- Faulty water inlet valve The valve coil is open, shorted, or the valve itself sticks closed and does not open when energized.
- Low household water pressure Restricted or low-pressure supply in the home plumbing prevents the dishwasher from filling at the required rate.
- Faulty flow meter or water-level sensor On models equipped with a flow meter, the sensor cannot confirm proper flow even when water is entering.
Step-by-Step Fix
- Confirm the code definition by checking your dishwasher’s model number and tech sheet or diagnostic display, because E6 can be model-specific.
- Verify the house shutoff by locating the supply valve under the sink and turning it fully counterclockwise to the open position.
- Inspect the inlet hose from the wall to the dishwasher by pulling the unit forward and looking for kinks, pinches, crushing, or blockage along the entire length.
- Clean the inlet screen by disconnecting the hose at the dishwasher valve, removing the small mesh screen, and flushing away any sediment or mineral buildup.
- Test the water inlet valve electrically by checking continuity across the coil terminals with a multimeter (consult your model’s table for expected resistance) and mechanically by observing whether it opens when power is applied.
- Check the flow meter or sensing circuit on models that use one by running diagnostics and observing whether the control registers water entry even when the valve and supply are confirmed good.
- Restore power and run a full wash cycle after making corrections to verify the error does not return and the dishwasher fills normally.
Parts Often Needed
| Part | Notes |
|---|---|
| Water inlet valve | Amazon | Match the part number on your existing valve or look up by exact model number. |
| Dishwasher inlet hose | Amazon | Replace if kinked, crushed, or internally restricted; measure length and fittings before ordering. |
| Flow meter assembly | Amazon | Only on certain models; confirm your unit has one before ordering. |
When to Call a Pro
Call a pro if you have verified the house shutoff is open, the inlet hose is clear, and the inlet screen is clean but the error persists after replacing the water inlet valve. A technician can test the flow meter, water-level sensing circuit, and control board to isolate faults that require detailed diagnostics or specialized tools. Also call a pro if your dishwasher is still under warranty, if you are uncomfortable working with household plumbing connections, or if you suspect a broader low-pressure issue in your home’s water supply that requires a plumber to resolve.