Warning. This site uses cookies. They help with occasional site revisions late at night, with a cup of cocoa. Copyright: Dr Ian McLauchlin 2013, 2014, 2015, 2016, 2017. You are free to use the information given here for non-commercial,                            not for profit, purposes but please Acknowledge my Name and this source. Thank you.


How to replace a NEFF U1721 fan oven heater element

The fan oven wouldn’t warm up but the fan was still turning - a sure indicator that the heating element needed replacing. Getting at the element was easy in principle as you could reach it from inside the oven. (You can take the oven door off to improve access by lifting the catch on each ‘hinge’ which then allows you to waggle the door upwards and off - see left.) Isolate from the electricity supply first!

The rear of the oven has a cover, released by 4 screws, which when removed reveals the fan and the near semi-circular heating element.

The ends of the element are attached by 4 screws, two each end. But the element is also secured in the middle and the screw is behind the fan, would you believe!

THE FAN - how easy to remove?

Quite easy as long as you remember that the 10mm nut is left hand threaded! So you unscrew it by turning it clockwise.

Also, it’s not held on a tapered shaft so it should release easily. (It’s keyed to the shaft by a slotted washer and the washer is held to the shaft by the serrated nut face - see left.)

There are many sources of replacement element and, as always, ebay sells lots. I bought a reasonably cheap version for about £8 (2014). The new and the old, clearly burnt out, are shown on the right.

While the replacement was a good match, the spade terminals were angled wrongly and needed to be bent gently with pliers so that they would go back through the hole in the rear of the oven.

In fact this misalignment, and the need to wiggle the ends of the element back through the mounting holes, meant that it was easier in the end to remove the back of the oven to access the connecting wires from the rear. Removing  the oven from the kitchen unit was easy - 4 screws at the front edge 2 left and 2 right. To make moving the oven around easy, I first spread an old sheet on the floor and placed a flattened cardboard box on top. The oven then sat on the carton and could be slid around on top of the sheet.

The centre attachment screw bracket was also slightly misaligned and had to be eased gently to get the screw in the hole. Having fastened the element to the back of the oven, it was then time to replace the fan. It was easier to tighten the fan nut (anticlockwise don’t forget) if a block of wood was used to stop the fan rotating - see right.

It was then easy to screw back the fan cover, attach the two wires to the element at the back of the oven, screw the back on and re-position the oven by sliding it back into the kitchen unit. A word of warning here. The upper sheet steel nuts had moved and needed sliding back into place to enable the top two fixing screws to bite!