Bosch SHX56B06UC dishwasher won't drain

[Dan]

One month ago, I bought a house with a Bosch SHX56B06UC dishwasher. I'm
guessing it's 5 or so years old, though I can't find a manufacturing date on
it. Machine ran fine at 1st, now the pump will not drain the machine. It
makes noises that sound as though the pump is running, (as when you select
"cancel drain") but no water exits. Drain line is not kinked. Filters are
also clear. I'm wondering if these symptoms point to any particularly
likely problem with this particular machine (maybe they're prone to a
certain pump clog, etc? Any suggestions appreciated.

TIA

Dan

 

[Homer J Simpson]

One month ago, I bought a house with a Bosch SHX56B06UC dishwasher. I'm
guessing it's 5 or so years old, though I can't find a manufacturing date
on it. Machine ran fine at 1st, now the pump will not drain the machine.
It makes noises that sound as though the pump is running, (as when you
select "cancel drain") but no water exits. Drain line is not kinked.
Filters are also clear. I'm wondering if these symptoms point to any
particularly likely problem with this particular machine (maybe they're
prone to a certain pump clog, etc? Any suggestions appreciated.

Does it wash/spray as far as you can tell? If not, you may have a broken
pump.

 

[Dan]

Does it wash/spray as far as you can tell? If not, you may have a broken
pump.

Thanks for the reply. Yes, it does spray. I agree the pump seems the
likely culprit. Since it makes pump-like noise on cancel-drain, I'm
guessing it's not the electronics that tell the pump to turn on. The thing
is, I kinda hate this machine's design. It's really quiet, but the rack
layout sucks IMHO & it's SMALL. If it's a relatively easy/cheap fix, I'd
probably go for it, otherwise I'd just as soon get another kind.

Dan

 

[Ross Herbert]

One month ago, I bought a house with a Bosch SHX56B06UC dishwasher. I'm
guessing it's 5 or so years old, though I can't find a manufacturing date on
it. Machine ran fine at 1st, now the pump will not drain the machine. It
makes noises that sound as though the pump is running, (as when you select
"cancel drain") but no water exits. Drain line is not kinked. Filters are
also clear. I'm wondering if these symptoms point to any particularly
likely problem with this particular machine (maybe they're prone to a
certain pump clog, etc? Any suggestions appreciated.

TIA

Dan

If the pump runs but doesn't shift the water out the drain hose may be
blocked. There may also be a drain valve which is blocked. Impellers
can fail but this is rare in my experience.

Here is a page describing a similar problem on another Bosch model
which may be relevant.
http://groups.google.com.au/group/u...her+won't+drain&rnum=2&hl=en#03655920860a169a

 

[Bennett Price]

Be sure to check the anti-siphon device (probably a small cylinder
sticking up from the rear of the sink. If it's clogged it will stop
the dw from draining.

 

[Dan]

Be sure to check the anti-siphon device (probably a small cylinder
sticking up from the rear of the sink. If it's clogged it will stop
the dw from draining.

Bennett-Thanks for the reply. I'm familiar with air breaks, but this
machine isn't set up with one. Apparently varies by local code. The drain
hose is looped & attached up high, which also serves as a siphon break in
the event of a sink flood.

Dan

 

[Dan]

If the pump runs but doesn't shift the water out the drain hose may be
blocked. There may also be a drain valve which is blocked. Impellers
can fail but this is rare in my experience.

Here is a page describing a similar problem on another Bosch model
which may be relevant.
http://groups.google.com.au/group/u...her+won't+drain&rnum=2&hl=en#03655920860a169a

Thanks Ross, I searched "bosch dishwasher won't drain" and varients, saw a
couple post (mostly also in the UK, oddly... ) but not that one. I removed
the left panel as described & the plug became immediately visable through
the transparent manifold! Easily fished out w/a bent paper clip! THANKS!

BOB'S YOUR UNCLE! ;-)

Dan

 

[Homer J Simpson]

Thanks for the reply. Yes, it does spray. I agree the pump seems the
likely culprit. Since it makes pump-like noise on cancel-drain, I'm
guessing it's not the electronics that tell the pump to turn on. The
thing is, I kinda hate this machine's design. It's really quiet, but the
rack layout sucks IMHO & it's SMALL. If it's a relatively easy/cheap fix,
I'd probably go for it, otherwise I'd just as soon get another kind.

There's usually a solenoid valve that switches the pump from spray to empty.
I'd look at that.

Otherwise

http://freecycle.org/

or

http://www.craigslist.org/

for a free one.