I have OzBargain's favourite Esatto 8kg heat pump dryer.
In the last couple of days, I have put a few loads through it that come out warm but still wet after many hours. Strangely, I can run a following cycle, with a fresh batch of wet clothes, and everything comes out dry like normal. It seems whatever the fault is, it's intermittent.
I always leave it on auto. I empty the water catch and clean both filters religiously after ever cycle. The mesh vent thing behind bottom filter is reasonably clean, I run one of those fin combs through it every few months to clean it.
Are there any ideas as to what this could be, or how to fix it?
I've run it almost daily for 3+ years and it's been flawless up to this point.
Sounds like a compressor failure or some seal which is supposed to keep the water separated.
However, before you bring in the big guns, apply for another loan and sell a kidney or your neighbour's heart, there's a few things to try:
Since it gets warm, heating sensor obviously works but it's your airflow or moisture retention which isn't.
=> Clean condenser fins/heat exchange with vacuum with a brush attatchment and suck away all that fine grit on the bottom and around fans
=> clean moisture sensors from any laundry detergent build up
=> check inside that none of the collected lint has gone AWOL, left its collection point and escaped into the bowels of the machine for a banging party and a clandestine hookup with Grease.