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Michael, Technician
Category: Small Appliance
Satisfied Customers: 9568
Experience:  Small appliance technician
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To the Daewoo Mechanic online, I have a Daewoo Microwave,

This answer was rated:

To the Daewoo Mechanic online,

I have a Daewoo Microwave, Model KOC-9Q1T.
It has switched itself off and is making an intermittent noise.
Can you please help?

Hi Steve,
How old is your microwave?
Also does it heat things still just as before?
And can you explain the abnormal sound better?
Thank you
Tech Michael
Customer: replied 3 years ago.

Hi Michael,


I think the Microwave is about 3 years old.

It won't switch on but when it's plugged in at the mains and the switch is on it emits a repetitive noise similar to the morse code sound except slightly slower.

When this happens the clock disappears and a 0 keeps flashing.

I hope this helps.



Thanks Steve for the excellent description.
This is a sign of the unit needing a new main control board.
Its easy enough to replace with only a few basic tools, I will help you all the way through, no additional cost to you ;-)
I can also locate the board for you and the best place to get that.
Please let me know if you would like to do this repair. But please do not open the microwave until you discuss this with me as there is something that can be extremely dangerous even when no power is applied to the microwave!
I will keep you safe though.

since this may take some time, if you will rate my service in a positive fashion thus far before you close this page, the system will allow me to schedule free follow ups with you and also ensure your question will NOT close or time out;-)
You will then be able to contact me at anytime at no additional cost until we have this fixed for you.

Thank you Steve.
Tech Michael
Michael and other Small Appliance Specialists are ready to help you
Customer: replied 3 years ago.



How much does a new board cost?



Hi Steve,
unfortunately its a holiday weekend here in the US :-(
So that information isn't available to us until Monday or maybe even Tuesday.
But I will let you know just as soon as I can get to that, no one is open now lol.
Thanks for your patience.
Tech Michael
Customer: replied 3 years ago.

Ok Michael, I'll wait to hear from you.



Have a great weekend.
Tech Michael
Customer: replied 3 years ago.


I was waiting for you to let me know how much the part cost but in the end I bought a new microwave.



Hi Steve, I'm glad you go ta new micro ;-)
I'm sorry for the delay my wife was in the hospital :-(
But if you need me I will be here.
Have a great day and best wishes and good luck with your new microwave!
Tech Michael
Customer: replied 3 years ago.

Cheers, Michael.

Thanks again, anyway.

Hope the wife's ok