DeLonghi Ovens - Page 7 - Recent Questions, Troubleshooting & Support

One of the options you have is to refer page 39 of the user manual which shows the wiring arrangement. The challenge is that it is not colour coded so you will have to trace where the wire is coming from to decide which lug to put it on.

As always extreme caution is required when dealing with gas and high voltage appliances.

Hope this helps.

I would try here i dont see a link for manual here thou

http://www.delonghi.com/us_en/products/do-400/

Hi,

Thank you for contacting fixya.com.

When the oven won't reach the desired temperature and leaves the food half cooked or half baked then either the thermostat needs to be adjusted or one of the elements has gone bad. Checking and diagnosing the thermostat:-

Place an oven thermometer inside the oven and shut the door.Turn on the oven, set it for 350°F (180°C) and let it heat for 30 minutes.Check the thermometer. Most thermostats are accurate to within 25°F (14°C). If yours is off by more than 50°F (28°C), the thermostat is bad and you will need to have a professional replace it. If your thermostat is off by less than 50°F (28°C), adjust the thermostat.Locate the adjustment screw. On some thermostats, the adjustment screw is on the back of the thermostat knob; on others it's inside the thermostat shaft.

To make a temperature adjustment on the back of a knob, remove the knob and loosen the retaining screws on the back, using a Phillips screwdriver. Turn the center disk toward "Hotter" or "Raise" to increase the temperature, or toward "Cooler" or "Lower" to decrease the temperature. Tighten the screws, reinstall the knob and test the oven. Readjust the knob if necessary.To make a temperature adjustment inside the shaft, remove the knob and slip a thin flathead screwdriver into the knob until it engages the adjustment screw in the bottom. Turn the screwdriver clockwise to raise the temperature, counterclockwise to lower it. Each quarter-turn will move the temperature about 25°F (14°C). When you're done, reinstall the knob and test the oven. Readjust the temperature if necessary.

If the thermostat is fine then check for faulty element and replace it. First identify the bad element. Set the oven to broil and check the upper element. Then turn it to bake and check the lower one. Both elements should turn bright orange if they're operating correctly. If one is cold, it needs to be replaced. If they both seem to heat up, look for signs that one is damaged. It may appear to be melted in one spot, or one spot may not turn as bright a color as other parts.

Turn off power to the oven at the circuit-breaker panel, leave the oven door open, and let the oven sit until the elements are cool to the touch.Loosen the bad element. Use a screwdriver or a nut driver and socket to remove the screws that hold the element-support bracket to the oven's back wall. Slip the element out of the brackets that hold it in place, and pull it forward until you can access the wiring .Disconnect the wiring. Wrap each wire with masking tape, and label them so you can install the new element correctly. Then unscrew the element from its wiring.

Install the new replacement element. Screw the element to its wiring, slip the element into its brackets, and screw the element-support bracket to the back of the oven.Turn on the power and test the new element.

Also check this link for more information:-

http://www.repairclinic.com/Range-Stove-Oven-Troubleshooting?red=Range-Stove-Oven-Repair-Help#itbakespoorly_electric

Please get back to us if you have further query else please accept the suggestion.

Turn your power off and back on again after a minute or 2

ISOLATE MAINS BEFORE REMOVING ANY PANEL
Without going into the issue too deeply it sound like you have one of two possible problems.
The first would be a visual inspection, not worked on this type so I will generlise the solution, check element or elements on oven, fan assisted usually have the element in front of the fan, you may have to remove the fan to remove the heating element, checking power, a multimeter would be require and extreme caution as mains would have to be restored to the appliance while panels rear were removed.
Check on meter A/C above 250 volts range if not auto ranging meter, two terminals on heating element should read 230 volt A/C, if no voltage, the problem can be in several areas, check this first. Then send me the details, if mains voltage is detected then it is safe to presume the element is faulty.
AH also before the above look at the element if you have a Black Grey spot or blow out just replace the element. Elements are quite easy to obtain for most ovens a local electrical supplier or whitegood.co.uk
you will need the model and serial number of the appliance.
Hope this is helpful
john

Thanks for choosing FixYa Kate and welcome to the site. If your oven is not heating right, you probably have a weak heating element. The fans on these ovens come on to cool down the oven. They can usually stay on for minutes after you turn it off. Now by saying this, since the fan came on when the other oven was off, you may have a problem with the control board in the oven. I know that is not normal. As far as the door, it is probably a bad door hinge. There are ways to test the heating elements but you need someone that knows what they are doing to test it. If both of the ovens are not working, I would again say you have a problem with the control board. If it is just the one oven, I would suggest replacing the heating element. I know a lot of people have complained about the loud noise of the fans in this brand so I am guessing it must be normal.