Although this is not code compliant in most places it serves the same purpose as the air gap to prevent drain water from siphoning back into the dishwasher.
Washer isn t draining water.
If the belt is broken or if it isn t tight on the pulleys the washer won t drain properly if at all.
Check for a valve bracket.
To inspect the drain hose turn off the power to the washer disconnect the hose have a bucket ready to catch any water and check the hose for damage or obstructions.
If you have a valve bracket see photo your dishwasher has a drain valve.
Fix washing machine that won t drain washer not draining water.
Most but not all dishwashers have a drain valve that keeps water from draining back into the dishwasher.
Keep in mind that any water in the washer will pour out of the hoses when removed.
The machine is about 10 years old.
Simply turn the machine on an empty cycle and you ll be able to hear whether the pump is working.
If you reach into your washer expecting to transfer the damp clothes to the dryer but find that your clothes are sopping wet and water is still standing the bottom of the tub your machine isn t draining properly.
Don t try to handle the water in the machine until it s unplugged.
If this hose has come loose so it is no longer looped up higher than the level of the dishwasher it may prevent water from properly draining out of the appliance.
If the washer won t drain the lid switch assembly might be defective.
There s a simple way to troubleshoot the washing machine to see if the pump is the reason your washing machine isn t draining.
I took the pump out and did not find any blockages and the impeller rotates.
This will limit your risk of getting electrocuted while you work on the machine.
Test the valve by pushing on the valve bracket to make sure it moves freely.
A kink or clog in your washing machine s drain hose could be interfering with water flow and preventing your machine from draining properly.
If the washer won t drain should check the drive belt.
It doesn t feel like there are any blockages in the hoses.
If it s not turning you ll need to remove the pump.