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Understanding Dishwasher Issues and Error Codes

Understanding Dishwasher Issues and Error Codes

Dishwashers are one of the most convenient appliances in our homes, taking over the tedious task of hand-washing dishes. But like all appliances, they can run into problems, sometimes signaled by mysterious error codes. In this blog post, we’ll delve into common dishwasher issues and decipher some of the most frequent error codes you might encounter.

Common Dishwasher Issues

1. Dishes Not Cleaning Properly One of the most common complaints is that dishes aren’t coming out clean. This can be caused by various factors:

  • Clogged Spray Arms: Food particles can block the holes in the spray arms, preventing water from reaching the dishes.

  • Dirty Filter: A clogged filter can hinder water flow and reduce cleaning efficiency.

  • Low Water Temperature: If the water isn't hot enough, the dishwasher may struggle to clean dishes effectively.

  • Improper Loading: Overloading or incorrect loading can block water spray and prevent dishes from getting clean.

2. Dishwasher Not Draining Water pooling at the bottom of your dishwasher is a sign that it’s not draining properly. Common causes include:

  • Blocked Drain Hose: Food particles, grease, or debris can clog the drain hose.

  • Clogged Filter: A blocked filter can prevent water from draining.

  • Faulty Drain Pump: The pump responsible for expelling water might be malfunctioning.

3. Dishwasher Leaking Leaks can cause significant damage to your kitchen. Common culprits include:

  • Door Seal Issues: A damaged or worn door seal can cause water to leak out.

  • Faulty Water Inlet Valve: If the valve that lets water into the dishwasher is faulty, it can cause leaks.

  • Loose or Damaged Hoses: Check all hoses for tight connections and any signs of damage.

4. Dishwasher Not Starting When your dishwasher refuses to start, it could be due to:

  • Power Issues: Ensure the dishwasher is properly plugged in and that the circuit breaker hasn’t tripped.

  • Faulty Door Latch: If the door isn’t properly closed, the dishwasher won’t start.

  • Control Panel Problems: The control panel or its connections might be faulty.

Common Dishwasher Error Codes

GE Dishwasher error codes

Error Code



Drain time exceeded 2 minutes


Drain time exceeded 7 minutes


Won't drain


Dishwasher overfilled


Drain time is too short (Dishwasher is underfilled)


Water temperature too low


Water temperature sensor is defective


Detergent dispenser cover is blocked


Power failure

Cup Open

Detergent dispenser cover has not been closed

Bosch dishwasher error codes

Error Code



No fault codes are recorded


Heating problem


Temperature sensor defective


Not filling


Water switch defective




Aqua sensor defective

LG dishwasher error codes

Error Code



Not filling


Not draining

AE or E1

Water leak detected


Water overflow detected


Thermistor (temperature sensor) failure


Locked up circulation pump motor


Heater failure


Diverter motor failure

Samsung dishwasher error codes

Error Code



No water detected in the tub within 6 minutes of starting the cycle


Incoming water temperature exceeds 176 degrees


Temperature sensor (thermistor) malfunction


Inadequate or slow drainage


Excessive water detected


Detected water leakage


Malfunction of the heating element


Water temperature in the tub exceeds 176 degrees


Insufficient water level


Control panel button is stuck


Malfunction of the half-load function

Whirlpool dishwasher error codes



Clean light blinks 7 times

Heater circuit issue. The control didn't detect the expected temperature rise when the heater was activated.

Console light blinks rapidly

The control detects a stuck button on the control panel.

Start/Resume light blinks slowly

The dishwasher won't resume if the door was opened or power was interrupted during the cycle. Close the door and press Start/Resume.

Clean light stays on

The dishwasher won't start a new cycle until it detects the door was opened after the last cycle.

Control lock LED is on

The control lock is on, or there's a keypad problem.

Sanitized LED blinks at end of cycle

The control couldn't confirm that the required sanitation temperature was reached.

KitchenAid dishwasher error codes

Error Code


1-1 or F1E1

Stuck relay on the electronic control board

1-2 or F1E2

Damaged or corrupted memory on control board

2-1 or F2E1

Stuck button on the user interface control

2-2 or F2E2

User interface control can't communicate with electronic control board

3-1 or F3E1

Thermistor/OWI sensor failure

3-2 or F3E2

Shorted thermistor/OWI sensor

3-3 or F3E3

OWI failed to calibrate or drain hose check valve failed

4-4 or F4E4

Communication error between control board and circulation pump motor

5-1 or F5E1

Door switch failure

5-2 or F5E2

Control detects door not opening

6-1 or F6E1

Dishwasher won't fill

6-2 or F6E2

Water inlet valve failure

6-3 or F6E3

Suds or air in water pump

6-4 or F6E4

Float switch is open

6-6 or F6E6

Incoming water is too cold

7-1 or F7E1

Heating element doesn't work

7-2 or F7E2

Heating element won't shut off

8-1 or F8E1

Slow drain

8-2 or F8E2

Drain pump electrical problem

9-1 or F9E1

Electronic control board can't detect diverter disc position

9-2 or F9E2

Diverter motor is stuck on

9-3 or F9E3

Diverter disc is missing

9-4 or F9E4

Lower spray arm error

10-1 or FAE1

Detergent dispenser failure

10-2 or FAE2

Vent wax motor electrical problem

10-3 or FAE3

Drying fan failure

Need Professional Help?

If your dishwasher displays any of these error codes, it’s best to consult a professional technician. Attempting repairs without the proper knowledge can be risky and may cause further damage. Certified technicians can provide accurate diagnosis and effective solutions to get your dishwasher back in working order. Reach out to a professional for assistance.

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