Karcher Pressure Washer Not Working - How to Fix an Air Lock

You connect the hosepipe, plug your Karcher pressure washer into the mains, press the trigger and you get a trickle from the gun. For some reason the pump is not switching on.

The most likely reason for this is that you have an air lock in the pump. This video shows various methods on how to dislodge air and get your pressure washer working again.

Chapters:
00:00 Introduction
00:31 Switch on and no pressure
00:53 Disconnect the lance
01:48 Tripping the pressure washer
02:31 Unplugging the water supply
03:04 Switching it off and on
03:44 Fill up the bottle dispenser
04:20 Pulsing the water inlet valve
05:28 Hozelock AquaStop issue?
06:15 Shake the air lock loose
07:29 Leaking bottle dispenser
07:59 Removing the AquaStop connector
10:24 How I fix it