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LG IE: Water inlet error — tub not filling enough

The dishwasher did not reach the proper water level within the expected time, so it flags an inlet/fill fault. It usually stems from a restricted water supply or a clogged inlet.

DIY fix

By the FixByModel editorial team · Verified 2026-09 · Researched against manufacturer support & repair references (below)

Most likely causes

  1. Water supply valve turned off or only partly open
  2. Kinked, pinched, or bent supply hose
  3. Clogged inlet-valve screen or filter
  4. Household water pressure below the required minimum (about 20 psi)
  5. Frozen supply line in cold weather
  6. Stuck float switch or failed water inlet valve
Where water collects
1Door gasket
2Hoses & sump
3Base tray
4Float switch

Schematic illustration of a typical dishwasher — not your exact model.

Before you start — unplug the appliance and turn off the water supply. You'll be working near water and electrical parts, and drained water can be hot. If a step involves the pump, wiring, or opening the cabinet and you're unsure, stop and call a qualified technician.

Step-by-step fix

1Open the water supplyLocate the supply valve (often under the sink) and turn it fully counterclockwise to open it.
2Straighten the fill hoseInspect the water supply hose for kinks or crimps and straighten it.
3Clean the inlet screenTurn off the water, disconnect the fill hose, and clean any debris from the inlet-valve screen.
4Check water pressureConfirm household water pressure is adequate; the inlet valve needs roughly 20 psi to fill properly.
5Thaw a frozen lineIn freezing conditions, wrap the supply hose with a towel soaked in warm water to melt any ice.
6Power reset and retestCycle power at the breaker for about 10 seconds, restore power, and start a new cycle; if IE returns, the inlet valve may need replacement.

Still showing IE?

If you’ve worked through every step and IE keeps returning, an internal part likely needs testing and replacement. That’s a job for a qualified appliance technician, who can measure the suspect part against the service-manual spec before replacing it.

Which models this applies to

LG dishwashers. Most LG dishwashers with an IE (water-fill) display.

FAQ

What does LG IE mean?

Water inlet error — tub not filling enough. The dishwasher did not reach the proper water level within the expected time, so it flags an inlet/fill fault. It usually stems from a restricted water supply or a clogged inlet.

What causes LG IE?

The most likely cause is water supply valve turned off or only partly open. Other causes include Kinked, pinched, or bent supply hose; Clogged inlet-valve screen or filter; Household water pressure below the required minimum (about 20 psi); Frozen supply line in cold weather; Stuck float switch or failed water inlet valve.

Can I fix LG IE myself?

Usually yes. Start by working through the steps above, beginning with: locate the supply valve (often under the sink) and turn it fully counterclockwise to open it.