Understanding Dishwasher Error Codes: Your Diagnostic Cheat Sheet

Error codes are your dishwasher's way of telling you exactly what's wrong. Common ones like IE (fill error), OE (drain error), and AE/E1 (leak) mean you're usually dealing with water supply, drainage, or leaks. Most can be fixed with basic troubleshooting—cleaning filters, checking hoses, resetting the unit. If you see the same code twice after a reset, call a pro.

How to Find Error Codes

Error codes display on your control panel—digital screen or LED readout. Write down the exact code including letters and numbers. Format varies by brand.

LG Dishwasher Error Codes

CodeProblemQuick Fix
IEFill ErrorCheck inlet valve, supply line, water pressure (min 20 PSI)
OEDrain ErrorCheck drain hose for kinks, clean filter, clear air gap
AE/E1Leak DetectionInspect tub gasket, spray arm seals, check for water under unit
FEOverfillTurn off water supply, have inlet valve inspected

Reset LG: Turn off for 10 seconds, restart. If code returns immediately, it’s a real problem.

Samsung Dishwasher Error Codes

CodeProblemQuick Fix
1EClogged FilterPull filter basket, rinse under water, remove debris
OEDrain ProblemCheck drain hose, clean garbage disposal, clear drain pump
IEWater InletVerify shut-off valve is open, check inlet hose for kinks
1C/5ESensor ProblemTry reset; if persistent, sensor needs replacement

Reset Samsung: Cut power at breaker for 30 seconds.

Whirlpool Dishwasher Error Codes

CodeProblemQuick Fix
F3E3Drain Valve IssueInspect one-way check valve at pump end
F1E1Fill TimeoutCheck inlet hose, verify water valve open, check pressure
F3E2Heating ElementUsually requires professional replacement
F8E2Drain PumpCheck for debris in pump intake; if clear, pump has failed

Whirlpool uses combination codes—“F” = fault, numbers indicate subsystem.

Bosch Dishwasher Error Codes

CodeProblemQuick Fix
E15Water in BaseCheck for leaks around pump, door gasket, tub seams
E22Fill ErrorCheck inlet hose for kinks, verify water supply on
E25Drain ProblemCheck drain hose, clean filter thoroughly
E38Temperature SensorHeating element or sensor failed—needs service

Repeated E15 codes mean an active leak.

Basic Troubleshooting (Any Brand)

  1. Check power and control panel response
  2. Run empty test cycle—watch fill and drain
  3. Clean filters at bottom of tub
  4. Inspect inlet and drain hoses for kinks
  5. Reset: Cut power at breaker for 30 seconds

When to Call a Pro

  • Water pooling under dishwasher (AE, E1, E15 codes)
  • Same code returns after reset and basic troubleshooting
  • Heating element, pump motor, or sensor codes
  • Uncomfortable accessing internal components

FAQ

Can I ignore an error code if the dishwasher keeps running? No. Error codes mean the safety system detected a problem. Even if the cycle completes, the issue will worsen.

What’s the most common error code? Clogged filter codes (Samsung’s 1E, drain codes on other brands). Solved by cleaning the filter.

Do I need the manual for error codes? Google your brand + error code (e.g., “LG IE error”). Manufacturer sites have searchable databases.