How does a Dishwasher work? Step by step Guide:

Are you tired of washing dishes and looking for a dishwasher? What are some things you need to understand about it? If you are looking for a dishwasher to make your life easier, then you should first understand how does a dishwasher work?

A dishwasher is a machine whose prime purpose is to wash dishes, and that is why it is quite a popular choice of household appliance.

If you have just purchased a dishwasher and are muddled with the several options, we have got you covered. We will begin explaining from scratch that would make cleaning dishes a brainer.

How does a dishwasher work:

Put dishes:

First of all, you need to put the dirty dishes inside the dishwasher and turn on the power. Every other step comes after it.

Load Water:

The dishwashers cannot work without water, so it will first fill up the water. Each dishwasher requires a different amount of water for working, so your dishwasher will fill the water according to its requirement. For this purpose, your home’s cold water will be utilized as a dishwasher is connected to the central plumbing system of the house.

Heat Water:

The next step is to heat the water of the dishwasher. There is a function of heating in it which heats the water. For cleaning, the water is heated up to 60 degrees to clean the dishes effectively. The high temperature also ensures that no bacteria remain on the dishes. One of the most important reasons why people buy dishwashers is because they clean the dishes very thoroughly.

Electric Pump:

The dishwasher has an electrical pump inside it, and the purpose of this electric pump is to pump the water up to the sidewalls of the dishwasher.


The dishwasher’s bottom surface has a paddle made of metal and holes on it, which helps water spin around. The reason for using a metal paddle is that metal is a good detector of heat and can stand against the water’s high temperature. Another reason for using a metal paddle is that it is a very durable material.

There is also a paddle with holes on the upper side of the dishwasher. The metal made of plastic is used there. Water with considerably low temperature pumps through these holes and contributes toward spinning the dishes. 


The water flowing through the upper side of the machine has a low temperature compared to the water flowing on the machine’s base. That is why the plastic paddle is used on the upper side of the machine.

Final Spinning:

The water after thoroughly cleaning the dishes through spinning settles down at the bottom of the dishwasher. The settled water is again pumped and gives the plates a final spinning. After this step, the clean dishes come out of the dishwasher.


How much water does a dishwasher use?

There are two factors on which the consumption of the water depends on. Firstly, each dishwasher has a different capacity, so each dishwasher uses a different amount of water.

The other factor is the product model, as the older models tend to consume more water than the newer ones. For instance, the older models typically consume 10-12 gallons of water, while on the other hand, the new models consume approximately 3 to 4 gallons of water.

How to remove a dishwasher?


The first thing you should do is turn off the dishwasher’s power supply. This is done by unplugging the switch of the dishwasher from the power output as dishwashers are usually attached to the sink so that the switch will be most probably on the bottom of the sink.

Sometimes, the dishwashers are directly connected to the primary circuit, so you will have to turn the circuit off.

Note: If you don’t know anything about the system, then ask the electrician for help.

Turn off the water:

All dishwashers have a shutoff valve on them. The main purpose of this valve is to turn off the water supply to the dishwasher.

Cut the main water supply:

The dishwashers are also connected to the plumbing pipes of the house. This step involves removing these pipes from the dishwasher.

Remove from the drain line:

Apart from the pipes, the dishwasher is also attached to the house’s drain line. You also need to cut the connection of the drain line as well.

Remove from wall:

The dishwashers are attached to walls with the help of brackets. With the help of a screwdriver, carefully remove the dishwasher from the wall.

Disconnect wires:

A faceplate of the dishwasher is connected with the wall. This also needs to be disconnected before removing the dishwasher. After you are done doing that, you can now easily remove the dishwasher and put it aside.

How to unclog a dishwasher?

Empty the dishwasher:

Empty the dishwasher by removing all the plates from it. Even if the plates are dirty, you still need to take them out of the dishwasher.

Turn off the dishwasher:

Turn off the main power supply of the dishwasher. Make sure to turn off the switch of the dishwasher before doing anything to drain the water.

Clean the water:

Clean all the water in the dishwasher. You can use a paper towel to do it as well.

Check the connection:

The dishwasher is connected with a plumbing system through a drain pipe. In this step, you need to inspect the connection of the dishwasher with the plumbing system. Check to see whether the drainpipe is clogged or not.

Clean the drainpipe:

If the pipe is dirty, remove it from the sink and thoroughly clean it. If it is damaged, then you need to replace the pipe with the new one.

Attach the drainpipe:

After solving the drainpipe issue, the next step is to connect it again with the sink. When you are done with that, check to see if the clogging issue is solved or not.


How long does a dishwasher last?

A dishwasher is a very durable product, and every brand offers a different warranty on them, but usually, the right dishwasher will last you 10 to 13 years. So, it is an excellent investment as well.

How to drain a dishwasher?

Following the below-mentioned steps will let you know how to drain a dishwasher effectively and easily.

Step 1: Switch off the dishwasher and empty it.

Step 2: Wipe off the dishwasher’s remaining water and remove the filter, which is placed at the bottom of the sink.

Step 3: Remove the plate of the filter pipe and clean it with soap and water. Check to see if anything else needs cleaning.

Step 4: Install the filter again and use the dishwasher to see whether the issue is solved or not.


A dishwasher is a life-changing invention for busy people. It is also very beneficial for those who want to save time. But before buying them, some important points about them should be considered.

The above-mentioned points completely cover everything related to how does a dishwasher work. So, if you have a dishwasher or want to buy one, then the above-mentioned guide is very helpful in this venture. So, consider buying a dishwasher and decrease the effort you put in your day to day chores!

You might like to read about detergents;

Best Eco Friendly Dishwasher Detergent – Reviews and Buying Advice
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