Quick answer
Dishwasher error E09 typically indicates a water supply issue. Check the water inlet valve and ensure the water supply is on. If the problem persists, the valve may need replacement.
Confirm the symptom
- Error code E09 is displayed on the dishwasher panel.
- Dishwasher fails to fill with water.
- Water supply to the dishwasher is turned off or restricted.
Tools and prep
- Screwdriver set
- Multimeter
- Plumber's tape
- Bucket or towel
- Safety gloves
- Turn off the dishwasher power at the circuit breaker.
- Shut off the water supply to the dishwasher.
Step-by-step troubleshooting
- Check Water SupplyDo: Verify the water supply valve is fully open and the household water is on.Observe: Water flows freely to the dishwasher.Means: Water supply is not the issue.Next: Check Water Inlet Valve
- Check Water Inlet ValveDo: Inspect the water inlet valve for clogs or damage. Use a multimeter to test for continuity.Observe: Valve is clogged or shows no continuity.Means: Valve is faulty and needs replacement.Next: Replace Water Inlet Valve
- Inspect Inlet HoseDo: Check the inlet hose for kinks, cracks, or blockages.Observe: Hose is damaged or clogged.Means: Replace the inlet hose.Next: Replace Inlet Hose
- Check Pressure SwitchDo: Test the pressure switch for proper operation using a multimeter.Observe: Switch does not close or shows no continuity.Means: Pressure switch is faulty.Next: Replace Pressure Switch
- Inspect Control BoardDo: Check the control board for visible damage or burnt components.Observe: Control board shows signs of damage.Means: Control board may need replacement.Next: Consult a Professional
- Reset DishwasherDo: Unplug the dishwasher for 1 minute, then plug it back in to reset.Observe: Error code clears and dishwasher operates normally.Means: Issue was temporary.Next: Monitor Operation
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Clogged Water Inlet Valve Debris or mineral buildup can block the valve, preventing water flow. | Common | Medium | Water Inlet Valve |
| Faulty Water Inlet Valve The valve may fail due to age or electrical issues. | Common | Medium | Water Inlet Valve |
| Kinked or Clogged Inlet Hose A kink or blockage in the hose restricts water flow. | Sometimes | Easy | Inlet Hose |
| Low Water Pressure Insufficient household water pressure can trigger the error. | Sometimes | Easy | None |
| Faulty Pressure Switch The pressure switch may fail to detect water flow correctly. | Rare | Hard | Pressure Switch |
| Failed Control Board A malfunctioning control board can misinterpret sensor signals. | Rare | Hard | Control Board |
Parts matching
Common parts needed to fix error E09 include:
- Water Inlet Valve
- Inlet Hose
- Pressure Switch
- Control Board (rarely needed)
Purchase parts compatible with your dishwasher model for best results.
When to call a professional
- Error persists after replacing the water inlet valve and inlet hose.
- You are unable to access or test electrical components safely.
- Dishwasher control board shows visible damage or burns.
- Error reappears frequently after attempted fixes.
- You are unsure about diagnosing electrical issues.
FAQ
What does error E09 mean on my dishwasher?
Error E09 typically indicates a problem with the water supply, such as a clogged or faulty water inlet valve.
Can I fix error E09 myself?
Yes, in most cases you can check and replace the water inlet valve or inlet hose. If electrical issues are involved, consult a professional.
Why is my dishwasher not filling with water?
This could be due to a closed water supply valve, a clogged or faulty water inlet valve, or a kinked inlet hose.
How do I test the water inlet valve?
Use a multimeter to check for continuity. If there is no continuity, the valve needs replacement.
What should I do if error E09 keeps coming back?
If the error reappears after replacing parts, there may be an issue with the control board or pressure switch. Contact a professional technician.