We have a 10 year old ASKO DW, and we mostly love it. It has recently
developed a problem draining, and I discovered that the inlet valve/
solenoid had a slow drip. I replaced that, and the problem was
reduced, but not eliminated. What happens is that water builds up in
the bottom catch pan, and then triggers the float which prevents the
unit from filling.

I cleared the pan, and ran a cycle. Perfect. I ran another cycle.
This time when it had finished, there was water left inside the DW, in
the bottom, but the dishes were clean. I ran the cycle again, and the
water from the bottom of the DW ran through the overflow into the
bottom pan, again triggering the float. Ok, that's why is shuts off,
but my question is:

What would cause the DW to not pump out all it's water sometimes?

Other info:
The DW has a electro-mechanical rotary controller, no fancy
electronics.
The drain is looped up and then down.
No vacuum break has been installed. The original installation
instructions did not call for one, but later installation instructions
did! Note that the drain hose runs from the pump, up to the plastic
hook, then down through the floor at the back of the cabinet into a 2"
ABS pipe, trap, horizontal run of 2", (total 15') then into a vertical
2" pipe, into the basement floor. This final drop appears to be
correctly vented, but I haven't tested it.

Some previous posts indicated that a slow drain might cause an
overflow. I'll try to put a fish tape down the drain to see if it is
clear. What specifically does the 'vacuum break' do, and how might it
affect my installation?

Thanks for your help!
Rob

Your Asko DW lasted 10 years? That is amazing. After 4 different things
broke on ours during the first 3 years we dumped it.


"robm" wrote in message
oups.com...
We have a 10 year old ASKO DW, and we mostly love it. It has recently
developed a problem draining, and I discovered that the inlet valve/
solenoid had a slow drip. I replaced that, and the problem was
reduced, but not eliminated. What happens is that water builds up in
the bottom catch pan, and then triggers the float which prevents the
unit from filling.

I cleared the pan, and ran a cycle. Perfect. I ran another cycle.
This time when it had finished, there was water left inside the DW, in
the bottom, but the dishes were clean. I ran the cycle again, and the
water from the bottom of the DW ran through the overflow into the
bottom pan, again triggering the float. Ok, that's why is shuts off,
but my question is:

What would cause the DW to not pump out all it's water sometimes?

Other info:
The DW has a electro-mechanical rotary controller, no fancy
electronics.
The drain is looped up and then down.
No vacuum break has been installed. The original installation
instructions did not call for one, but later installation instructions
did! Note that the drain hose runs from the pump, up to the plastic
hook, then down through the floor at the back of the cabinet into a 2"
ABS pipe, trap, horizontal run of 2", (total 15') then into a vertical
2" pipe, into the basement floor. This final drop appears to be
correctly vented, but I haven't tested it.

Some previous posts indicated that a slow drain might cause an
overflow. I'll try to put a fish tape down the drain to see if it is
clear. What specifically does the 'vacuum break' do, and how might it
affect my installation?

Thanks for your help!
Rob

I have had similar drainage problems with my ASKO twice in the last 6
months and I cannot see what is wrong with my drain either. I'd love
to hear from someone out there on how to cure this permanently.
Taking the tray off and sponging out every 3 months does not appeal.

Thanks
mj

On Oct 14, 11:17 am, wrote:
I have had similar drainage problems with my ASKO twice in the last 6
months and I cannot see what is wrong with my drain either. I'd love
to hear from someone out there on how to cure this permanently.
Taking the tray off and sponging out every 3 months does not appeal.

Thanks
mj

Hi Martin

I'm the OP

Could you describe your drain connection in detail? Mine is unusual,
so I have always wondered if I caused the problem.

Two other questions:
1) do you have a vacuum relief valve on the standpipe, or do you drain
into the sink drain?
2) I have noticed recently that the left 'rail' that supports the
upper dish tray has worn out. It runs on ball bearings (4) and I
think that 3 of them may have been lost in the machine, plus there is
some thin plastic missing as well. I'll replace this support, IFF I
can figure out why it is overflowing. I've read about similar
problems with other ASKO's clogging the drain, but I didn't pay too
much attention before I saw that my rack was failing.

My ORIGINAL problem was a slow leak/drip from the inlet valve. Put a
small dish under the valve run the dw for a week or so, then check to
see if the dish has water in it. New valves are $100 and easy to
replace. (2 wires, a hose clamp and a threaded fitting)

Have you disassembled the drain/pump? What did you do?

Good Luck
Rob