Stum

Hi - long time casual reader, first time feeling I have something to contribute... We had a similar issue with the same machine - turned out that it was drawing so much air through the drain that it was stopping water from draining. For us the drain was initially running into tall pipe with a trap at the bottom that also served the washing machine. Loads of air getting sucked through becoming bubbling and gurgling once the weather got cold (holding in enough water just to fill the inside a few times). Fixed the noises with a water-less trap - but the suction was sufficient to hold the trap closed, the machine filled up and started leaking. Have now got the trap fitted fully vertical a decent way below the machine so the pipe holds sufficient volume to push the diaphragm open. No noises or leaking since.