Delonghi Dishwasher Error Codes If your dishwasher won’t start, save time and money by troubleshooting it before calling a professional. Repairing a dishwasher isn’t as difficult as it might seem and can be done even if you aren’t particularly handy. Use this guide to help you troubleshoot major parts of a dishwasher and determine when professional help is necessary.
Delonghi Dishwasher Error Code Solutions
| Error Code | Problem | Action |
| E1 | Water Flow | Check the setting of the cold water tap. If problem persists you will need to arrange a service call |
| E4 | Over flow – Float switch activated | You will need to arrange a service call |
| E6 | Open circuit heating sensor | You will need to arrange a service call |
| E8 | Diverter Valve – open circuit or broken | You will need to arrange a service call |
| ERR C | BLDC motor failed | You will need to arrange a service call |
What to do if your dishwasher won’t start
Before you start troubleshooting your dishwasher and whenever you check for continuity within your dishwasher, always make sure you unplug the dishwasher and that the power to the appliance is turned off to prevent electrical shock.
- Make sure your dishwasher is plugged in—Occasionally, your dishwasher won’t start because it’s not plugged in or there’s an issue within the circuit breaker. Make sure your dishwasher is securely plugged in and that the circuit breaker switches haven’t been tripped.
- Make sure the child lock isn’t on—Some dishwasher models will have a child lock feature to prevent the dishwasher from starting. Check your owner’s manual and make sure the child lock settings are turned off.
- Reset the dishwasher—If your dishwasher won’t start but the lights are on, the start button may have been pressed more than once. While pressing the start button once starts the cycle, pressing it again resets the dishwasher and runs a drain cycle for 90 seconds. Wait until the drain cycle is complete and try starting your dishwasher.
- Ensure the door latch is working properly—The door latch assembly holds the door closed during a wash cycle to prevent water from leaking. It also houses the door latch switch that provides power to the dishwasher controls. If the dishwasher door isn’t closed properly, the dishwasher won’t receive power to complete a wash cycle. Locate the door switch at the top of the dishwasher door and check that both switches are mechanically activated when the door closes. You can also use a multimeter to check for continuity, but make sure the power to the dishwasher is turned off.
- Assess the timer and electronic control—After you’ve ensured that the door latches properly, look at the timer or electronic control. These parts are responsible for how much power is sent to each component of your dishwasher, like the drain pump, heating circuit, and water inlet valve, during a wash cycle. If these parts don’t get the power they need, they won’t work properly. Turn off the power before checking the timer or electric control with a multimeter.
- Check the selector switch—A selector switch allows you to choose different washing, drying, and heating options for a wash cycle. If defective or not depressed correctly, the selector switch could be the cause of your dishwasher not starting. Locate the selector switch on the control panel and make sure it’s not stuck between settings. Check to see if more than one button has been pressed at the same time—if more than one button has been pushed, this will create a no continuity situation for your switch and bring no power to these controls.
- Check the motor start relay—If your dishwasher won’t turn on and you’ve verified that it’s receiving power, the motor start relay may be defective. Locate the part next to the motor and use a multimeter to check for continuity. The coil portion of the relay should show continuity at all times while the switch contact portion should only show continuity when activated.
- Assess the thermal fuse—When the thermal fuse fails, the control board won’t receive any power and the dishwasher won’t start. Open the access door panel and locate the thermal fuse at the top of the circuit board—it will have two wires attached to it. Check for continuity with a multimeter. If the thermal fuse is blown, it will have to be replaced.
- Replace your drive motor—The dishwasher drive motor circulates water during a wash cycle to clean the items during a cycle. If the dishwasher won’t start after the start relay sends power to the motor, your drive motor could be defective. If you’ve noticed loud humming sounds coming from the motor during previous wash cycles, this indicates a failing motor. You should replace your motor as soon as possible.
If you try these steps with no luck, or if you’d rather leave repairs to the professionals, you have a few options. Your limited dishwasher warranty may cover the repair, depending on the age of your appliance and what part needs fixing. It might be worth getting a local professional to inspect and diagnose the problem.