Is the drain pump running all the time when the red light is on?
You will hear a noise comming from the bottom.
Plus if you open the door and pore a jug of water in there and close the door see if the water drains itself away from there.
Ok so what is actually happening when you start a new cycle?
Does it fill with water?
Does the wash motor kick in?
Is it not draining the water out?
Ok so just to double check it is completeing the cycle but its just in cold water and not drying is this correct?
Ok from the sounds of this its a heating fault you have here. Now its usually either the heater itself or the control board at fault here.
What you need to do if checking this youself is remove the outer metal door and then remove the front plastic control panel.
There you will see the control board.
Remove this and open the plastic casing and remove the board.
From there inspect the board and check for any dry joints or burn marks. As on there as the heater relay and these can give a dry solder joint. So you can resolder this and that usually fixes it.
But if the board looks ok then you need to access the heater element under the dishwasher base and test this for contonuity and if faulty then it needs to be replaced.
Check it out if you are able to and see what you find.
Ok didnt relise it was brand new. Its still possibley it can be a fault on the heater or board but its quite rare a brand new one failes.
So when it completes the cycle has the water drained all away?
Or is the water level still above the filter in the bottom of the dishwasher?
Ok were does the waste hose go to?
Is it under the sink?
If so then remove the hose from the spigot and check the end is cut off.
Also remove the spigot and check there isnt a blanking cap in there as you should be able to blow through it or see through it.
Check that and see what you find and let me know.
Ok hang the hose into a bucket and start the dishwasher on a cycle. The first thing it should do is pump the water out.
See if it does this.
Ok if its draining when in the bucket then its blocked somewere in the sink unit. Double check the spigot in there and feel inside the sink trap were the spigot goes to and check theres nothing blocked in there.
The blockage has to be in there if its draining the water out when not connected to the sink trap
Ok refit the hose on there and retry it and see if it drains the water out then. Just try it on a rinse cycle as thats the quickest cycle to try it on.
Nice one. Glad to hear its sorted and thanks for letting me know.
If you could remember to rate the answer that would be great.