Asko d3250 drain pump wont stop running - Asko Dishwashers

Most likely is activated overflow system.
This means water leaks under the dishwasher and is activated drain pump to prevent flooding. The simplest is to lean on either side the dishwasher so if there is water on the floor, that's it. Now you need to identify and repair the leaks. You can not be excluded that a defective triac by driving the drain pump placed on circuit board. It very rarely happens and some brands signals a failure by display or LED diodes .

Dado

The drain cup normally has water in it after it drains. The pump runs it empty, but when it stops, some water runs back down from the drain hose, which you see in the drain cup. If there is water in the bottom of the tub, you may be having some siphoning coming back after draining. Check to make sure the drain hose has been routed up to the bottom of the countertop as per the installation instructions. That's what prevents siphoning, and its very important so it doesn't suck sewer water back in with the clean dishes!!

I have a D3450 that was doing the same. Eventually I ascertained that there was a pressure switch that was not functioning properly. On the D3250 it was only accessible from the rear after taking off the lower panel on the back. It was a black part with a red membrane of sorts. I just disconnected its wire connector instead of replacing the part as it was rather expensive. I've been running mine machine at least 2x day for months since with no problems. Good luck!

All power and sounds should stop when any dishwasher door is opened.
Your door switch may be stuck causing it to continue.
The 90 second sound at the beginning of the cycle is the water pump extracting any residual water before taking on clean water for the wash cycle.
Any excessive noise from the drain pump could be debris in the pump. e.g. broken glass.
You can remove the pump and check it for blockage or any foreign object.

This is a anti flood activation. It is a safety device (polystireen float and micro switch at the base of the washer) that keeps the drain motor running due to water leak / spill detection. Dry the water and rectify the leak (normaly pipe or clamp leak) and this should solve the problem.

Check this solution

HI thanks for your question. the problem is with the water pump. its electric, so some of the food got caught in the pump. clean out the pump. thanks, the appliance doc. please rate my answer. thanks.

First I would check the water line from the sink that is hooked up to the dishwasher.
You may have a screen that plugged up.
Also, if you have little pressure at your sink faucet, then you should check your house's water system.

usually these are blocked at the discharge end under the sink, especially if the hose is hooked to a copper pipe then shoved down the plumbing standpipe. It could also be in the hose behind the dishwasher if someone has fitted an extension onto the hose and used a small diameter coupler. Run the dishwasher on any cycle...if there is standing water you should hear the drain pump run first...if there is no standing water run it on a rinse and hold cycle. at the end of the cycle the pump will run. if you hear the pump, but no water is ejected out the drain hose under the sink, then you most likely have a clog in the hose near the end or in the middle if it has an extensio. if you dont hear the pump run, then its a bad pump and you need a new one (parts like that are covered for 5 years if you use an ASKO servicer) Good luck!

Is there water in the drip pan? My asko developed a leaky inlet solenoid, which would fill the drip pan eventually causing a failure. If the water evaporated, the washer would run. Normally, there should be no water in the drip pan.