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Technical and repair articles

Do you ever check your plugs ?


Do you ever look at the plugs on your appliances. Many electrical appliances around the home will have been supplied with a moulded plug top which is virtually maintenance free, but there are still of home fitted plug tops around. We see a large percentage of microwaves that come into our workshop with after market plugs fitted. Please check from time to time. especially if its a plug that gets used or moved around a lot as appliances such as irons are taken from or put into cupboards. Check that the plug top itself isn't broken. Often parts of it will break off as the material is quite brittle.ImageI wouldn't expect anyone to take a plug apart for a routine check (that's our job. when a microwave comes in for repair we always check the plug top and cable for signs of damage), but if the lead feels or looks  loose, then you should check inside. The screws can come loose or may have been fitted too loosely during fitting.


One of our technicians during a routine repair just recently checked inside to see several of the wire securing screws actually missing - not even inside the plug top.ImageI could mention about how to wire a plug but its almost a topic in itself. For now check the first picture by the title of this post. That's pretty much what it should look like, at least what colour wires go where. Finally, If the fuse goes and you need to change it, please make sure you change it for the correct rating, replace it with the same colour fuse. Usually 13 amps for most kitchen appliances. If it blows again you need some expert help to check the appliance as there is probably a fault.


Created On  27 Nov 2019 14:12 in Technical and repair articlesGeneral use and cooking articles  -  Permalink

I can see through the door, how is it these microwaves can't get out?

You can see through the door because the holes in the metal mesh are small enough for the light"waves" to pass through, but the microwaves are too big to fit through the holes (I know this sounds odd because we are talking about something we can't see!).

Just imagine that you have got a wire mesh, with holes about the size of a pea in it, along comes some light (imagine it as a marble) that's 1/10th the size of the hole--it will drop through a hole in the mesh, now along comes the microwave which is a bigger glass marble, about the size of a 2 pence coin, it's far too big so it just bounces off the mesh, it can't get through.

This is just what happens with light and microwaves in the microwave. To the microwaves the mesh looks just like a solid metal screen; and they bounce off just like radar waves bouncing off of a ship or aeroplane, but to the light the screen is not very substantial and the light just streams through.

Created On  27 Nov 2019 14:10 in General use and cooking articlesTechnical and repair articles  -  Permalink

Panasonic Bread Machine Mounting Shaft

[caption id="attachment_695" align="aligncenter" width="300"]Panasonic breadmaker mounting shaft kit Panasonic breadmaker mounting shaft kit[/caption]

We have had a few instances of customers purchasing either mounting shafts or mounting shaft kit (kit.005) because the kneading blade has been loose on the shaft only to find that the new parts are exactly the same. The blade normally sits quite loosely on the shaft. It is designed with enough tolerance to allow for the non stick coating to be applied during manufacture. it doesn't matter that it is loose because it is driven positively by the flat portions. The blade only turns in one direction so there is little chance for excessive wear. Even being loose we or Panasonic UK have never heard of a blade coming off of the shaft during operation. To that end we advise that as long as everything is working ok not be concerned that it looks to be loose. The main reason to change the mounting shaft is when the seal fails and allows mixture to seep through into the pan of if the bearing fails and it either seizes or makes excessive noise during operation.

Created On  27 Nov 2019 14:09 in Product informationTechnical and repair articles  -  Permalink

Heating plates in the microwave

Just recently I have had a few phone calls from customers who have damaged their microwave by using it to warm plates.

In a nutshell, don't use your microwave to warm plates.

Very briefly, microwave ovens work by emitting microwave energy into the oven. This in turn agitates water molecules in the food or drink in the oven. The friction of those molecules creates heat and - hey presto - hot food is the result.

Plates have very few if any water molecules in or on them, therefore if you only put plates in the oven, the microwaves will bounce around the oven looking for something to absorb them. Eventually, something else in the oven will get warm. it might be the plastic roller ring, the mica waveguide cover or any plastic parts of the inner door.

It may be that you have been doing this for a while with no problem, this could be due to a number of factors such as the quality or type of plate. Some cookware may have moisture inside which more readily absorbs the microwaves, whereas some cookware will be completely invisible to microwaves (this wont get warm at all).

On a few occasions problems have occurred where the microwave is a replacement microwave and is either much more powerful than the last or through its design is less tolerant of microwave energy bouncing around inside.

Either way, if the microwave is used for heating plates eventually some damage will occur. The plates could break. The microwave oven might even end up cooking itself ultimately which will of course result in costly repairs or replacement.

If you really want to use your microwave to heat plates try putting a bowl of water on top of the plates so that most of the energy will be absorbed or if your microwave is a combi oven warm the plates with the grill of convection instead. It may take 5 minutes instead of 1 minute but wont affect the microwave in any way.

Click here to buy bowls or jugs from Kitchenwareonline.com


Created On  27 Nov 2019 14:07 in General use and cooking articlesTechnical and repair articles  -  Permalink

How Microwave ovens actually work - back to basics

I read an article yesterday about a lady who had almost set fire to her microwave oven whilst trying to warm her baby's blanket. I will try and add the article here. I was surprised that she obviously had no idea how a microwave oven worked. If she did not only would she have averted a repair bill but she would almost definitely be able to make better use of her microwave for what cooking she does use it for.

I did a quick search for how does a microwave oven work and came up with loads of articles. A simple but accurate definition is "Microwave ovens use radio waves at a specifically set frequency to agitate water molecules in food. As these water molecules get increasingly agitated they begin to vibrate at the atomic level and generate heat. This heat is what actually cooks food in the oven."

You can see from this definition that warming a baby's blanket is never going to work.

But what about cooking food. From this we learn that microwaves agitate water molecules. They do the same to fat and sugar. Therefore when you use your microwave, consider the moisture within it. The more the better, but too much would be wasted. Why cook a dish of vegetables covered in water. Why not try just a small amount of water in the dish. There will be plenty of moisture already in most microwaveable items, vegetables, fruit, fish and meat.

Don't use the oven to warm dry items. It wont work. More importantly it will damage the oven.There are lots of articles on the web about this and lots of books. You may well find that the instructions that came with your microwave offer some really useful usage tips.

Learn how your microwave oven works and then make it work for you. you might be surprised how versatile it is.

This is the article:

"I have one piece of advice for new mothers: Don't put the baby's blanket in the microwave.

This is a public service announcement. It happened to me and it can happen to you.


Let's back up a bit. The year is 2007. I'm a week postpartum with my firstborn. I'm leaking breastmilk on the restored wood floor, crying over sentimental Rice Krispies commercials, and feeling a profound exhaustion, an exhaustion so marked I've haven't experienced it since.

I'll set the stage. I'm living in a hip tri-plex with my new husband in Northeast Minneapolis, (it was hipper to me prior to having a colicky baby in Rewind on Johnson Street), trying to figure out what it means to be a mother. Unfortunately, shortly after the birth of our child, my husband's job took him out of state. Fortunately, my mother stayed with me to navigate the treacherous and unpredictable waters of early motherhood. On the evening of the blanket incident, I assured my mother, despite my exhaustion, that she should get some rest upstairs (the tri-plex had a mother-in-law room, how fitting) while I took the overnight shift with my newborn.

Fast-forward to 3:00 a.m. My baby woke up. I nursed him. He didn't go back to sleep. I walked the floor with him. Nope. Still awake. And then it hit me. Warm blanket. The baby is cold (it's February 2007). I have a flashback to our time in the hospital when the sweet nurses used blankets from the warmer with which to swaddle my baby. Brilliant! I have a warmer, too, right here in my hip tri-plex. The microwave!

While still holding the baby, I placed one of his receiving blankets in the microwave. Better to go with a conservative estimate of 10 seconds. Don't want to burn the baby. Ten seconds later, I felt the blanket. Nope, not warm enough. I closed the door again and set the microwave to 15 seconds. Twelve seconds in, I saw a spark. Oh, no. I open the microwave door and smoke poured out.

The baby started coughing from the smoke. Little, pitiful newborn coughs. I swiftly moved (as much as my recovering-from-perineal-stitches gait allowed) upstairs with my babe in arms and woke my mother and handed her the baby.

Mom, I put a blanket in the microwave. I think I started a fire. Hold the baby!"


Created On  27 Nov 2019 14:04 in General use and cooking articlesTechnical and repair articles  -  Permalink

24 Volt Samsung Roadmate repair service

We can carry out repairs to Samsung Roadmate microwave ovens.

These ovens are no longer available from Samsung but we have found that we are able to offer an effective repair service. Most problems with these ovens tend to be on the Inverter circuit boards inside the oven. Although these are not available from Samsung as spare parts even, we can repair them in our workshop through sourcing the specific components from a specialist supplier. The oven is then fully tested using a 24 volt power supply in our workshop before being returned.

Will the estimate cost me anything?

If you can bring your Samsung Roadmate (24 volt) microwave oven to us or have it delivered, we can provide a free repair estimate for you.

How long does it take to provide an estimate?

We can usually provide the estimate within 3-4 working days. We have a fully equipped workshop, with a 24 volt power supply for testing the microwave oven before and after repair.

How can I get my microwave to you?

The easiest way if you are not local to us is to have it sent by courier to us. We will need your contact details, and the address it is to be returned to. We have a PDF form you can print out and fill in for us.

What about 12 volt Roadmates?

At present we don't have a suitable power supply for testing the 12 volt version, so we are unable to repair them.

Warranty and testing?

All repairs come with a three month warranty on labour and the parts fitted during the repair.

All microwave ovens are fully tested for correct operation, and microwave leakage after being repaired.

Payment for repairs

We can accept payment by most types of credit or debit card over the telephone, or you can send us a cheque made payable to MSC Ltd.

When paying by cheque the oven will not be returned to you until we have received the cheque.

Spares and accessories

We are able to order our spares and accessories directly from Samsung, so we can carry out repairs quickly and efficiently with genuine Samsung spares.

If you need any accessories such as a glass tray, or microwave cookware we can supply them also.Samsung roadmate 24 volt truck microwave oven Samsung roadmate 24 volt truck microwave oven

Created On  27 Nov 2019 14:02 in Technical and repair articles  -  Permalink