Neff oven fan not working after bulb blew

Home › Forums › Public Support Forums › Help And Support › Cooker And Oven Forum › Neff oven fan not working after bulb blew

Viewing 6 posts - 1 through 6 (of 6 total)
  • Author
    Posts
  • August 23, 2007 at 8:50 am #30002
    davetack
    Participant

    Hi There

    First post so please be gentle, i have a Neff U1863N2GB/01 FD8305 double oven about 5 years old.

    I noticed that one of the bulbs in the main oven was blown, so i ordered a generic replacement bulb. Fitted bulb worked ok on first cooking session. I then noticed that the fan in the main oven was not coming on and also both bulbs on the main oven had gone out.

    I looked at the bulb i had recently changed and after removing the glass cover found that it had exploded. removed the bulb reset at mains- set the clock but still the fan and bulbs do not come on. the top oven works fine and the bottom oven seems to heat up and the control succsefully changes the heating elements depending on the mode.

    What is the connection between the bulb circuits and the fan? please any help would be appreciated.

    Thanks

    DT

    August 25, 2007 at 10:25 pm #225481
    clivejameson
    Participant

    Re: Neff oven fan not working after bulb blew

    The lamp, fan and element are controlled by the same selector switch which is built in to the main control unit i’m afraid 😕 When a lamp blows it’s filament can collapse and create a momentary short circuit which can pull a huge amount of power for a couple of thousandths of a sec (after which the trip will cut the power). This can seriously damage other components in the same circuit.

    I would certainly say it’s not a DIY repair, i managed just a couple of weeks ago to successfully repair the control unit on a similar model but it was touch and go.

    I would recommend getting an engineer in to have a go for you…if it can’t be repaired then a new control unit will set you back the thick end of £150 unfortunately 😕

    August 27, 2007 at 2:45 pm #225482
    davetack
    Participant

    Re: Neff oven fan not working after bulb blew

    HI Clive

    Thanks for the info, i managed to get a circuit diagram and traced the fault to a relay K2 on the main controller (i am a electrical engineer but not in the trade), after diagnosing the fault i was just about to order the part and i though i would see if i could get the relay only so i took the board out to get the details off the relay. When i did this i noticed the track on the underside of the relay had burnt out, i replaced the track and reassembled tested and everythingis fine.

    🙂

    September 1, 2017 at 12:32 pm #225483
    mentonbeach
    Participant

    Re: Neff oven fan not working after bulb blew

    My bulb blew but is now working. I turned the power off at the mains and replaced the bulb. When I turned the power back on, the light did not work.
    I left the oven during the day and when I turned it on in the evening the light worked.
    The oven must have a diagnosis program that take time to check the circuit.
    Hope this helps.

    February 4, 2018 at 11:03 am #225484
    Reluctant_DIYer
    Participant

    Re: Neff oven fan not working after bulb blew

    Same problem here:

    – Bulb blew (spectacularly, more like exploded…), tripped fuse
    – Clock board always working, no error message
    – Changed bulb. No light. Changed for a 3rd bulb, no light
    – Managed to operate the oven and then do a pyrolytic cleaning
    – Still no light

    How do I expose the control panel to check fuses?

    Thanks

    PS: Model is single fan Neff oven B15P42.0 GB

    February 4, 2018 at 12:34 pm #225485
    electrofix
    Moderator

    Re: Neff oven fan not working after bulb blew

    there are no fuses. if it does not work you will have blown a switch or a control pcb

    to get at the control panel the oven will have to be removed from the unit and the top taken off after turning off the power

    Dave

  • Author
    Posts
Viewing 6 posts - 1 through 6 (of 6 total)
  • You must be logged in to reply to this topic.