Bosch Classixx 1000: Won't drain
The Solution: Top up the softener tray with extra water so that it is up to the 'max level' mark.
The softener tray works by a siphon action. Thus, the reason the tray does not empty is that not enough water is added by
the machine during the softening cycle, so that the machine does not
completely fill the softening tray; only when the softening tray is
filled beyond the 'max' mark does the siphon action works. A partially
filled tray will never empty - it's impossible due to the siphon.
The reason that not enough water is added to the tray during the
softening action is that the water inlet of the machine is partial
blocked (you can try to fix that) but it is simpler to just added more
water to the conditioner tray.
Thus, the easiest way to ensure that the softener tray empties every
time (after adding the softener to the softener tray of course) is to
top up the softener tray with extra water, top it up to the 'max level'
line (keep a bottle of water by the machine). That way, even if only a
little water is added to the softener tray during the softening cycle
by the machine it is enough to trigger the siphon action and the tray
Works for me every time, and no need to remove any parts - I used to
take the tray out, clean it, scrub the outlet holes that fill the tray
etc, but they used to gum up again quite quickly!
Hope that helps
on Jul 10, 2016