Dishwasher Error Codes Explained

What Are Dishwasher Error Codes?

Dishwasher error codes are alphanumeric codes or beep patterns displayed on the control panel when the machine detects a fault. They are the dishwasher’s way of telling you what is wrong — and understanding them saves time and money by helping you diagnose the problem before calling a technician.

How to Read Your Dishwasher Error Code

Error codes vary significantly between brands and models. The same code — for example E1 or F3 — can mean completely different things on a Bosch versus a Whirlpool versus a Samsung dishwasher. Always look up your specific model’s error code list rather than relying on generic guides.

How to find your model number: Open the dishwasher door and look for a sticker on the door frame, inner door panel, or side of the tub. The model number is usually a combination of letters and numbers.

How to look up the error code: Search online for your model number plus the error code (e.g., “Bosch SHPM88Z75N E24”). The manufacturer’s website, support pages, and appliance repair forums will have the specific meaning for your model.

Common Dishwasher Error Code Categories

While codes vary by brand, most dishwasher error codes fall into these general categories:

Water Supply Errors

The dishwasher is not filling with water or is filling too slowly
Common causes: water supply valve closed, kinked inlet hose, low water pressure, faulty inlet valve
Common codes: E1, F1, IE (LG), 1E (Samsung)

Drainage Errors

The dishwasher cannot drain water at the end of a wash phase
Common causes: clogged filter, blocked drain hose, blocked sink drain, faulty drain pump
Common codes: E2, E24 (Bosch), F2, OE (LG), 5C (Samsung)

Heating Errors

The water is not reaching the required temperature
Common causes: faulty heating element, faulty thermostat, scale buildup on heating element
Common codes: E3, F3, HE (LG)

Door Errors

The door is not fully closed or the door latch switch is faulty
Common causes: item blocking the door, worn latch, faulty door switch
Common codes: E4, F4, dE (LG)

Overflow or Flood Errors

Water has leaked into the base of the dishwasher, triggering the flood protection sensor
Common causes: door seal leak, hose connection leak, overfilling
Common codes: E6, E15 (Bosch), FE (LG)

Sensor or Control Board Errors

A sensor has failed or the control board has detected an internal fault
Common causes: faulty turbidity sensor, faulty NTC sensor, control board failure
Common codes: E7, E8, F7, F8

First Steps When an Error Code Appears

Note the exact code displayed
Perform a reset — press and hold Cancel for 3 to 5 seconds, or turn off at the circuit breaker for 60 seconds
If the code clears, run a test cycle to see if it returns
If the code returns, look up the specific meaning for your model and follow the recommended fix

Using a Multimeter for Electrical Diagnosis

For error codes related to heating elements, sensors, or electrical components, a multimeter helps confirm whether a component has failed before ordering replacement parts. The Klein Tools Digital Multimeter Kit includes a non-contact voltage tester and is suitable for testing dishwasher components at home.

Final Tips

Always look up the error code for your specific model — codes are not universal
Try a reset first — many error codes clear after a power cycle
Drainage and water supply errors are the most common and usually fixable without a technician
Flood protection errors (water in the base) require immediate attention to prevent further damage

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