Neff H7871N0GB/03 Microwave Oven PCB burning.

Home › Forums › Trade Technical & Spare Parts Forums › Trade Technical Enquiries › Neff H7871N0GB/03 Microwave Oven PCB burning.

Viewing 6 posts - 1 through 6 (of 6 total)
  • Author
    Posts
  • February 9, 2011 at 10:22 pm #60932
    Twoten
    Participant

    I am looking at the above Combi Microwave Oven.

    when plugged in the top right hand corner (when viewed from the back of the PCB is getting very hot and smoking. The display remains blank.
    The low voltage in the base of the cabinet is also getting fairly hot.
    The only other fault I can find with this oven is the base oven element has an earth fault of about 45M Ohms, which I shouldn’t think would cause the PCB problem.

    I am assuming this is going to be the PCB but wondered if there’s anything else I could have missed before I order the PCB.

    February 10, 2011 at 10:04 am #344194
    pete909
    Participant

    Re: Neff H7871N0GB/03 Microwave Oven PCB burning.

    HI

    Have you tried disconnecting the heater element, and does the pcb still smoke

    February 11, 2011 at 10:22 am #344195
    Twoten
    Participant

    Re: Neff H7871N0GB/03 Microwave Oven PCB burning.

    Hi pete909,

    If I disconnect the elements the PCB still gets too hot.

    February 14, 2011 at 9:31 am #344196
    pete909
    Participant

    Re: Neff H7871N0GB/03 Microwave Oven PCB burning.

    Hi again
    Is the heater relay closed when in static [ dead]

    February 14, 2011 at 9:56 am #344197
    Twoten
    Participant

    Re: Neff H7871N0GB/03 Microwave Oven PCB burning.

    pete909 wrote:Hi again
    Is the heater relay closed when in static [ dead]

    Nope, not closed.

    February 14, 2011 at 3:56 pm #344198
    Specialist01269
    Participant

    Re: Neff H7871N0GB/03 Microwave Oven PCB burning.

    Are there an Electrolytic capacitors on the display PCB? & if there are have you checked that none are s/c ? have had this problem with several display boards on different machines.

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