Whirlpool · Dishwasher Moderate
E1 — Fill / Water Supply Problem (legacy code)
Shown on older single-digit-display Whirlpool dishwashers. The dishwasher could not fill — supply, float, or drain-siphon issue.
- Keep using it?
- Yes, with caution
- DIY difficulty
- Easy
- Verified against
- producthelp.whirlpool.com ↗
How to fix it
- Verify the under-sink water valve is fully open.
- Lift the overfill float in the front-right of the tub and confirm it moves freely.
- Pull the dishwasher and confirm the drain hose has a high loop secured under the counter, or connects above the disposer trap at least 20" above the floor.
- Power-cycle the dishwasher at the breaker for 1 full minute.
- If E1 returns, follow F6E1 troubleshooting (inlet valve and strainer).
Why it happens
Typical signs: E1 on display · Dishwasher will not fill · Cycle aborts at fill phase
- Water supply valve closed Under-sink shutoff not open.
- Stuck overfill float Float in front-right of tub stuck up.
- Improper drain hose loop (siphoning) Drain hose not connected at least 20" above floor — water siphons out as fast as it fills.
- Control needs reset Power-cycle for 1 minute often clears a one-time E1.
More Whirlpool dishwasher codes
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: producthelp.whirlpool.com.