A dishwasher typically works with hot water. After buyingif you consistently wondering whether it works with cold water or not, then let it go. Here, you’ll get answers to your queries”Will a dishwasher work without hot water”.

Usually, dishwashers require hot water for working. Because hot water becomes more beneficial in thorough cleaning and keeping hygienic measures, but it’s not that the dishwasher can’t work with the cold water.

Most dishwashers come with a heating element, which is for heating and drying purposes. If you supply cold water in your dishwasher, then the heating element present will heat it. But it may become the cause of utilizing more power and affects its working.

Hence, you can use cold water in the dishwasher, but consequences may occur at different rates. However, you can gather more information about it by reading this article.

Why Does the Dishwasher Need Hot Water?

A dishwasher may also work with cold water, but it’s need is hot water. There is no such science that if we use it with cold water, it will not work. It will work, but there will be a significant difference in performance.

Why Does the Dishwasher Need Hot Water?

Because hot water washes better with the sanitizing ability, and a dishwasher usually has its heating process.

However, the heating element will not heat cold water to this extent. It will only warm the cold water, which will leave effects on washing. You can also feel the difference in the performance.

Consequently, a dishwasher requires hot water if you want its full functioning and performance.

Do Dishwashers Use Hot Water or Heat Their Own?

Many dishwasher owners didn’t know that a dishwasher requires hot water for proper cleaning and killing bacteria. Hot water has proved to be more beneficial for thorough cleaning. Coldwater can remove the waste material on the dishes, but it can’t do deep cleaning.

However, dishwashers primarily have their heating system, which is mainly used to keep the temperature of the hot water and for drying purposes after washing. It can’t heat the cold water to the minimum required temperature that is 120 F.

Do Dishwashers Use Hot Water or Heat Their Own?

Furthermore, some old dishwashers don’t have their heating element. Consequently, you can use a little hotter water up to 140 F for better usage.

So, if you are not using hot water for the dishwasher, then fit the water line to some hot water source. For that, you can also use your standard water heater that is near your kitchen area.

Can You Wash Dishes in the Dishwasher with Cold Water?

Of course, you can use cold water in your dishwasher. It will not break or stop working. If your dishwasher has a heating system, it will warm the cold water. So, the cold water will wash all your dishes. But forget about the proper washing with hygienic measures if you are using cold water.

Moreover, it is proven that your dishes or plates will have 16000 bacteria per plate after regular hand washing. However, with the dishwasher, it reduces to 1 per plate. The alarming situation, right?

Can You Wash Dishes in the Dishwasher with Cold Water?

So, if you are ok with the 16000 bacteria on your plate with your food, you don’t have to use cold water. In fact, in my opinion, that’s the situation, then don’t waste your money on the dishwasher. If you have spent your money on the dishwasher, get the most benefit from it and improve your health.

Consequences of Using Extreme Cold Water:

Everything colder or hotter is not good; the same goes for the dishwasher’s case. If you are using more hot water, it will burn the pipelines and end up ruining them. Likewise, more cold water can have many harmful effects on your dishwasher and cleansing.


The cold water can wash your dishes, but it can’t kill the harmful elements like bacteria on the plate. No matter if it is extremely cold or a typical cold, it can’t make the hygienic cleansing. Some people predict if extreme heat can kill the bacteria, so extreme cold can also do this, but it’s not like that.

Functioning and Durability:

If your dishwasher has a heating element and you will use icy water with it, it can give you drastic effects. When frigid water goes to pipelines, it doesn’t affect them but when it moves to the heating system, it harms it.

So, if you use freezing water consistently, then it can affect your dishwasher’s durability. Hence, a dishwasher can also work with icy water, but if you want to eat hygienic food away from cultured bacteria and increase your dishwasher’s durability, then use hot water.

Consequences of Using Dishwasher Without Cold Water:

It’s better to run your dishwasher with hot water. Nothing is better than that. But the question remains that cold water usage can affect the functioning, but if we use hot water, what will we get? Now, let’s see what you will get.

Proper Sanitizing:

Hot water up to 120 F can kill all the germs and bacteria from the dishes. Using the hot water as the water source in the dishwasher can sanitize your plates, pots, or utensils and keeps your hygienic measures.

Long Life Span:

The machine will remain perfect if you use it in the way recommended by manufacturers. The hot water usage not only sanitizes your dishes but also gives minor work to the heating system.

Long Life Span a dishwasher

Your dishwasher can last up to 8 to 12 years, but you have to care about it. The proper usage can increase the lifespan of the dishwasher.

Can the Dishwasher be Connected to Hot Water?

As you may know, until now, that hot water is best for your dishwasher. So, you can connect your dishwasher with the hot water line, but here are some things that you should consider before doing it.

Hot Water Line:

You should look up your hot water source. Your hot water line should be temperature control, like a hot water boiler that you usually use in your kitchen or bathroom.

High Temperature:

If your hot water line exceeds the 140 or 150 temperature, it will burn the dishwasher and lead to a big disaster. You should maintain the temperature up to 120 F or as shown in your product manual.

Rare Cases:

The best water source is hot water for the dishwater, but in some rare cases, the internal heating system of the dishwasher is so strong that the manufacturers of that product prohibit the hot water source. So, before connecting to a hot water line, read the manual first.

Hot Water Hose:

Hose are designed differently according to hot and cold water. They vary in blue and red colors depending on the usage. If you are going to connect the hot water line to your dishwasher, change the hose with the hot water hose.

Why is My Dishwasher Not Washing with Hot Water?

A dishwasher should use hot water for cleaning purposes, but consider solving them if you face some problems. This issue varies with the model and type of dishwasher. Here, I will give you some solutions; let’s see which works for your dishwasher.

Heating Element Problem:

Some dishwashers do not need any other source of hot water than their heating source, and some do. However, a disorder in heating elements can affect both hot water washing.

Heating Element Problem dishwasher

If your plates or dishes can’t dry perfectly after washing, the heating system is not working correctly and you should recover it.

Hot Water Line:

Moreover, a problem can be in your hot water line. Maybe the source from where water heated and came to the dishwasher is not working correctly and needs to be checked.


There is a system in your dishwasher that indicates it to warm the water, known as a dishwasher thermostat. If the above situations do not work, then you should look into the thermostat and check it.

How do You Know if Your Dishwasher Heating Element is Bad?

Although the heating element is not something you can’t use your dishwasher without it. However,it also has a lot of importance. Otherwise, you have to dry the dishes with your hands, which can irritate you when the thought of automatically drying comes to mind.

Moreover, you can check your dishwasher’s heating system when not getting plates dried after washing. The heating element keeps the temperature of almost 120 F in the dishwasher, which dries and kills the bacteria.

So, if you are not feeling this temperature in your dishwasher, you can look into the heating element, whether it is rusted, brakes, or blisters. Any visible disorder is a good indicator, or you can also hire a technician for this purpose.


#1. Do Dishwashers Use a Lot of Electricity?

Mostly, dishwashers are 1,800 watts and consume electricity of about 1.8 kilowatts per hour. Comparatively, it’s a pretty cheap rate and will not go above your limits. However, the fact of your usage also depends.

If you are using cold water, the heating element will take more time and power to heat it. And will affect your hourly power rate.

#2. Can I use My Dishwasher If My Boiler is Broken?

If your dishwasher’s boiler is broken, then the best precaution that you should take is not to use it unless you will repair it.

Additionally, in an urgent situation, you can use it by hand, filling it with hot water and connecting it with some hot water source. It may help to run that dishwasher.

#3. Why is My Dishwasher Only Using Cold Water?

Usually, the recommended way to run the dishwasher is to use it with hot water. But if your dishwasher is only working with cold water, then it means that your dishwasher type is quite different from others.

Some dishwashers only use cold water because of their vital heating element. Like Samsung, dishwashers only use cold water, and the hot water source is strictly prohibited.

#4. Can I Connect the Bosch Dishwasher to Hot Water?

Yes, the Bosch dishwasher can be connected to the hot water source. However, you can also associate it with cold water drinking, and it will work accurately.

But if you want more clearance, you can also use hot water with a temperature limit of 60 degrees Celsius. It will not ruin your Bosch dishwasher.

#5. What Dries in the Dishwasher?

Almost every dishwasher has a drying setup, but their system varies with type and model.

However, they may have a fan that flows the hot air along with it, electric coils that heat the air in it, or increase the temperature of the water during the end of the last cycle and have a combination of all.

However, all the processes end up on good drying, no matter which you have.

#6. How do You Fix a Dishwasher That is Not Heating?

If the heating element of your dishwasher is not working correctly, then you should apply some tricks on it. Firstly, pull off the plug, wait for a few minutes and then plug it again.

If nothing happens, then clear the filters and spray arms for any blockage. Fix it back after cleaning it and check whether it is working correctly. If not, then contact the technician.

#7. How do You Test a Dishwasher Heating Element Without Removing It?

The primary purpose of the heating element is to dry the dishes after washing and keep the required temperature.

If your dishes are not drying correctly and the internal temperature is less then your dishwasher’s heating element has some problem. Or you can also visually check any corrosion or breakage on it.


Until now, you will probably know the importance of hot water in running your dishwasher. Hot water can give you many benefits and can keep you away from harmful bacteria.

Now, you should go and transfer your dishwasher from cold supply to hot. But keep in mind, see the manual of your dishwasher first, whether the hot water is applicable for it or not, then you should also consider looking onto the temperature scale. And you are good to go.

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