7 Common Mistakes When Installing a Washing Machine

November 13, 2025

Some people might think installing a washing machine is a simple “plug and play” job. However, small mistakes can cause big problems such as leaks, excessive vibrations, and long-term damage. Taking a little time to do it properly can make a world of difference in the pain it will save you down the line.  

In this article, we are going to discuss 7 mistakes to avoid in order to have a safe and smooth washing machine installation.

1. Not Removing the Transit Bolts

Every washing machine is sold with transit ( or shipping) bolts that secure the washer drum during transport. Forgetting to take the bolts off is a first-time mistake. If the bolts are not removed, the washer will produce an unpleasant banging noise and could damage the drum.  

Tip: Most washer user manuals describe the location of the shipping bolts, which are at the back of the washer. They recommend removing these bolts first before the washer is used for the first time.

2. Installing on an Uneven Surface

If your washing machine isn’t sitting level, get ready for some rattling, shaking, and a lot more noise than you bargained for. It’s not just annoying  all that movement wears out the motor and bearings faster.

Tip: Grab a spirit level and check each side. Adjust the feet until the whole thing is steady and balanced.

3. Incorrect Water Supply Connection

It’s pretty easy to mix up the hot and cold water hoses or leave them just a bit loose. That means leaks, and nobody wants puddles behind the washer.

Tip: Double-check that each hose goes to the right spot, and tighten everything up don’t go overboard. Turn on the water and look for drips before you slide the washer into place.

4. Ignoring the Drain Hose  

Let's be real the drain hose handles dirt, so you want it installed correctly. Just shoving the hose in or letting it dangle leads to leaks or water building up in all the wrong spots. The key? Slide the hose into the standpipe so it sits tight don't force it, make sure it's secure. Six to eight inches is plenty. And here's the important part: keep the hose's top higher than the water in the drum. That stops dirty water from sneaking back into your washer.

5. Using the Wrong Outlet  

Washing machines don't like to share, especially when it comes to power. Plug yours straight into its own grounded wall outlet no sharing with other big appliances, and definitely no extension cords. That's just asking for trouble. And here's a simple one: dry your hands before you plug in or unplug the machine. It sounds basic, but it actually matters.

6. Skipping the Test Cycle  

A lot of folks just set up a new washer and toss in their first load no questions asked. But seriously, take a minute to run a quick empty cycle first. You'll spot leaks, weird noises, or anything else unusual before it turns into a bigger headache. Once you've got the washer hooked up, start it on a short cycle with nothing inside. Watch for leaks or slow drainage while it runs. It's such an easy step, and it saves you a ton of hassle down the line.

7. Skipping the User Manual

Let's be real nobody sits down excited to read an appliance manual. But skipping it? That's how you end up scratching your head later. Every washing machine comes with its own oddities and setup steps.

Here's a quick hack: take ten minutes to flip through the manual. Seriously, those little pictures and tips really make things easier and save you some frustration.

FAQ

Is it possible to do the installation of the washing machine by yourself?

Certainly, most people can manage it provided they actually adhere to the guidelines and observe safety measures. A built-in or a huge machine is a case where it is best to call a technician.

Why does my washing machine shake during the spin cycle?

In nine cases out of ten, the problem is either with the levelling of the washer or there are still transit bolts you have missed removing. Look into both issues before summoning a technician.

How much space does my washing machine need?

Allow about an inch on each side and four to six inches at the back. These will ensure that there is adequate ventilation and that the hoses can be accessed without the need to bend and twist very inconveniently.

How long does installation take?

Provided your equipment is fully prepared, you should be looking at a maximum of 30 to 60 minutes.

Conclusion

Installing a washing machine isn't exactly a crazy science experiment, but it still requires your attention. Surely, staying away from typical mistakes will lead you to accomplish the task with no leaks, no time lost, and your washing machine will run trouble-free for several years.

Take your time, verify everything, and in case of doubts, consult a technician. Believe me, the extra effort at the start will be worth it in the end with no troubles.