A leaking dishwasher is almost always caused by a worn door seal or loose hose.
Step 1: Check the door seal — run your finger around it and look for cracks or gaps.
Step 2: Replace the door seal if damaged — they cost $15-30 and pull off and push back on.
Step 3: Check the inlet hose at the back — tighten if loose.
Step 4: Check the drain hose — make sure it’s properly connected and not kinked.
Step 5: Check the door latch — if the door doesn’t close fully it will leak.