Electrical Appliance Maintenance : Electric Kettle

It's about 5:00 pm after my college finish and went back home,my mom make hot coffee that she pour in my cup and make me energize instantly. You know what's the secret behind her hot coffee. That's her electric kettle. Well that's sounds funny,but it's a important machine to make your coffee,water,tea too hot and every mom's favorite machine. Well it's time to know about how's your mom's electric kettle works and how to maintain last long to enjoy your hot tea. Lets get started.

Before to know how your electric kettle works,lets we learn basics from scratch about resistance. For example,Take a wire made of copper as you know and run through a current, the current will flow without any interference because copper has less resistance.

If you run current a conductor like Nichrome wire, the wire gets heat. This is because, the nichrome wire has high resistance.

This is how your electric kettle works. The higher the resistance of a conductor, the higher the heat produce in the conductor and wuaa!! laaa!!! you get hot coffeee.

The picture above shown is the standard schematics of an electric kettle. In electric kettle you need to know two parts The heating element and the thermostat whic are the main parts of electric kettle that make your coffee hot.

The Heating Element.

This is the main part of the kettle makes your coffee hot. This heating element is made of material like nichrome that has characteristics of high resistance. When the current pass through this heating element, it produce heat to make your coffee hot. Thats all for heating element dummies.

The Thermostat.

 
 Well heating your coffee isn't enough. You need some temperature control unit to make your coffee in right temperature to consume. So the thermostat is used in this kettle. Let say you boil a kettle full of water (not coffee for now),what this thermostat do is,when the water boil in right temperature, the thermostat will automatically off the power supply. 

The steam thermostat is for to disconnect the kettle when the temperature reach high. This done by expanding bimetallic strips in the thermostat that shut down the kettle.

The Boil Dry thermostat is used for to switch off the kettle when there's no water inside the kettle.

Now you know how the kettle works!! But how to do maintenance on electric kettle that wants you to make more coffee.So for easy solution,let see the common problems on ypur kettle and instant solution to fix it.

1. Kettle never get supply.

Solution :Check the wire of kettle that might get wound or cut.Check the socket also.

2. kettle won't get heat.

Solution : The heating element fails to heat kettle. Using multi meter, the continuity in heating element. Touch the positive probe to the end of the heating element and touch the negative probe to another end of  it. Select the range on BUZZ. The continuity is is correct, the multi meter will make Beep sound. If the beep sound doesn't heard, no continuity on the heating element.

            : Measure the resistance of heating element with the formula : R=V/I. Measure the resistance of heating element using multi meter. If the reading of multi meter and the reading of your calculation isn't same, then you need to replace new heating element.

           : If the heating element rust,damaged or deformed, it should be replace new one.

3. Kettle won't switch off automatically in right temperature.

Solution : Replace new thermostat. Thermostat failure cause the water boils in high temperature and may cause your heating element to fail also.

              

GIVE A HAND OF APPLAUSE TO YOU ALL DUMMIES!! BECAUSE YOU KNOW HOW KETTLE WORKS AND HOW TO MAINTAIN IT TO MAKE MORE HOT COFFEE. YUM!!! YUM!!