Ah, deep and profound joy – the blue tube problem. If you are very lucky, you can remove the blue tubes (and the little black one), flush them absolutely clean under the tap and it’ll work. If you’re not QUITE so lucky, you will need to remove the front lower cover and find the skinny clear and pink tubes and blow back through their mounting spigots. If you’re REALLY unlucky, the horseshoe hose right at the bottom underneath will have to come off and be cleaned.
Apart from that, it’s dead easy.
Power off obviously :plug: , if you’re not sure what I’m talking about, get pro help.
Regards,
Penguin45.