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Why can an extension cord cause trouble when pressure washing?

All power cords cause a voltage loss

The voltage in your home should be between 218 and 242 volts.

Within this entire range, your Ava pressure washer should work fine.

However, if you are in the lower half of the spectrum, we still see that the distance to the fuse box can cause trouble, and this risk increases for every meter of cord added.

An extension cord should be a maximum of 10 meters with a thickness of 1.5 mm².


With a thickness of 2.5 mm², you can use up to 20 m in length.

If you have low voltage and connect to an outlet far from the fuse box, typically in a garage or in the garden, you may already be on the edge of the voltage drop that the machine can tolerate.


If you have problems with the fuse blowing, or the machine disconnecting after some time, it often has to do with the mentioned voltage drop. Then try without an extension cord or closer to the fuse box to determine if this could be the cause.

The most common type of extension cord for outdoor use is naturally a cheap and long cord. These are sold in large quantities, and most people with a garden and some tools have one or more of these. They are well suited for products that consume little power or that are not started frequently. A pressure washer uses a lot of power and restarts every time you press the trigger, so such a cord becomes warm and can cause extra high voltage drop.

Again, try without an extra cord or switch to a thicker cord if you experience that the pressure washer is not behaving normally.


P.S.: Remember that a cable can appear thick even if the conductive part is thin. Therefore, check what is written on the cable and make sure it corresponds with the information above.


We recommend extending the high-pressure hose rather than the power cable. This can often be cheaper and gives you a better experience. You don’t get any significant pressure loss.