If your dishwasher is leaving water at the bottom of the tub, there could be a few causes. Here are some solutions you can try:
Clogged pump strainer: Clean out any debris which may be blocking the pump strainer – this will help ensure that nothing is preventing the water from draining out of your appliance properly.
Leaking door seal: Inspect the door seal for any signs of wear and tear – if it is cracked or broken then this could be allowing water to leak in during a cycle and pool at the bottom of the tub.
Faulty drain valve: Check that the drain valve is opening and closing correctly – if it has been damaged over time, this can prevent water from being pumped out properly, resulting in water collecting in the tub.
Faulty sump hose: Inspect your machine’s sump hose for any obstructions – if it is blocked or kinked, this could be causing water to get trapped inside the machine instead of being drained away as usual.