Microwave oven - repair shops

[MAS]

Hi..... please share some details of places that does repair (Colombo and suburbs).  Thanks. 

[firstgear]

I once did a repair at Abans Wellawatte.
They charged 1500 or something to fix a noise by replacing some rubber. I think that's a  reasonable charge.

[Crosswind]

You should never repair a microwave oven. Throw it away if it has any problems. Here are the reasons:

1. Microwave ovens have a small piece of mica - which covers the waveguide and prevents the food from getting cross-contaminated. The waveguide cover is very brittle and it will almost always break when someone attempts to disassemble the device. You will end up getting food particles inside the waveguide, which will be a heaven for bacteria. Replacing the waveguide cover, after repairing the oven is an option but how many repair people actually bother?

2. You see those tiny little holes on the door? You may have thought of it as something cosmetic for you to see the beauty of the food that you prepare inside the microwave. Now open the microwave door and you will see that those holes are protected from glass panes on both sides. The reason is those holes are smaller than the wave's wavelength. Therefore, the waves inside the oven cannot penetrate through them and come outside (A/L Physics in action). If there's a tiniest bit of damage to the glass panes that hold the perforated sheet (the holes) together and even if there's a tiny scratch between two of those holes, then the microwaves can come out and zap you. They can cook you (or at least cause cancer) almost at the same speed which they cook the food. Its that one simple panel that prevents the oven from doing that. 

3. Microwaves have an extremely high voltage inside (around 10000V). Needless to say, a repairperson can make a tiny mistake when putting things back together. Consequence? Fire!

Microwave ovens don't cost much nowadays, unlike the past when they ran up to a hundred thousand bucks. Your life values more than that so don't attempt to repair them. Just throw away and get a new one.

[mcs627]

Discard and replace. Modern microwave ovens have a 3 year lifespan if used daily.. For 9000 Rs you can buy a barebone model which is more than enough for practical puposes

[MAS]

Thank you guys for taking the time to reply.  @Crosswind great info there.  Points well noted.    

[GayanR]

It' hard to find a place to properly repair a radio without taking a risk.Never repair life risking equipment's.