How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask JamesI Your Own Question

JamesI
JamesI, Handyman
Category: Appliance
Satisfied Customers: 805
Experience:  I have repaired and maintained numerous items over the years, from fridges to freezers, radios to TV's.
75967336
Type Your Appliance Question Here...
JamesI is online now

I have a Bosch HME9750GB combi microwave oven. It made a

Resolved Question:

Hi Michael
I have a Bosch HME9750GB combi microwave oven. It made a popping sound and tripped the mcb last night and now when reset the led display lights up and then slowly fades away. I have checked both fuses on the main board and they are okay..any ideas?
Cheers Ross
Submitted: 7 months ago.
Category: Appliance
Expert:  JamesI replied 7 months ago.

Hi Ross, thank you for choosing Just Answer. My name is ***** ***** will assist with your query today.

The fault in the microwave sounds like diode or PCB power module failure, the popping noise you heard is often associated with a magnetron problem, an educated guess would be the magnetron failed which caused a surge which damaged the diode or PCB, which in turn tripped your MCB.

Unfortunately this doesnt sound like an economical repair, since you have already checked the fuses, the next place to start would be checking the diode with a multi meter, the spare can be sourced from here (if found to be faulty). You cant easily test the magnatron until you have the power circuit working, however the PCB costs circa £150, the magnatron £100, so would advise against repairing the unit if the diode appears to be functioning.

Regards

James

JamesI, Handyman
Category: Appliance
Satisfied Customers: 805
Experience: I have repaired and maintained numerous items over the years, from fridges to freezers, radios to TV's.
JamesI and other Appliance Specialists are ready to help you
Customer: replied 7 months ago.
Hi James, thanks for the response. I removed the PCB and found that one of the tracks for a relay on the board are blown. I see where you are coming from and it could turn out to be a costly repair. It has given us good service so I think it's time for a new one.CheersRoss

What Customers are Saying:

 
 
 
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy
< Previous | Next >
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
 
 
 

Meet The Experts:

 
 
 
  • Rob

    Rob

    Home Appliance Technician

    Satisfied Customers:

    420
    20 yrs. experience with a major worldwide manufacturer.
< Previous | Next >
  • http://ww2.justanswer.com/uploads/RO/royzee1/2012-10-11_16153_serviceengineers.64x64.jpg Rob's Avatar

    Rob

    Home Appliance Technician

    Satisfied Customers:

    420
    20 yrs. experience with a major worldwide manufacturer.
  • http://ww2.justanswer.com/uploads/NE/needapplianceparts/2012-11-9_15310_rickcannon.64x64.jpg Appliance Parts's Avatar

    Appliance Parts

    Home Appliance Tech

    Satisfied Customers:

    82
    Appliance tech since 1992. Factory authorized
  • http://ww2.justanswer.com/uploads/JG/jgrella16/2011-9-12_73730_justanswerheadshot.64x64.jpg Jon's Avatar

    Jon

    Home Appliance Technician

    Satisfied Customers:

    1535
    Home appliance technician with over 12 years experience.
  • http://ww2.justanswer.com/uploads/SE/secondhandheaven/2014-11-23_141828_lge.64x64.jpg George-Allsorts's Avatar

    George-Allsorts

    Home Appliance Technician

    Satisfied Customers:

    1123
    A whitegoods technician with 30+ years service in Domestic Appliance Service & Repair, and General Mechanical & Electrical Repair
  • http://ww2.justanswer.com/uploads/RE/repairman4734/2011-5-21_171048_FarrellPic.64x64.png repairman4734's Avatar

    repairman4734

    Home Appliance Technician

    Satisfied Customers:

    684
    Thank you for your question, it is appreciated
  • http://ww2.justanswer.com/uploads/drcool299/2008-12-16_113651_francis.jpg drcool299's Avatar

    drcool299

    Home Appliance Technician

    Satisfied Customers:

    22
    I have been an Appliance tech for the past 15 years. Worked on most of the branded appliances.
  • http://ww2.justanswer.com/uploads/AS/asterixt/2015-8-31_143917_pic.64x64.jpg Michael's Avatar

    Michael

    Customer Service

    Satisfied Customers:

    2970
    I have been an appliance repair tech for over 30 years and will help you solve your problems.