If your Hotpoint dishwasher is leaking water from the front or sides, the problem may be a defective door seal. Over time, the rubberised door seal can harden or crack, allowing water to spill through the gaps between the door and the rest of the dishwasher unit. Check your owner's manual or the Hotpoint website for a parts listing to make sure you are replacing the door seal with the correct part for your specific dishwasher.
Check your owner's manual to see how the door gasket is installed on your Hotpoint dishwasher. Some dishwashers have a small groove that runs around the door opening, while others have screws that hold the seal in place. If your dishwasher has a groove holding the seal on, use a plastic putty knife to pry it out. Do not use the end of your screwdriver because the metal may damage the dishwasher unit.
Clean the area where the old door seal had been, paying special attention to the inside of the groove if your dishwasher has one. The new door seal may not seal properly if dirt and debris are stuck in the groove. Use a soft sponge and a non-abrasive cleaner so you do not scratch the surface of the dishwasher.
Insert the replacement door seal into the groove at one of the bottom corners of the door opening. If your dishwasher has screws instead of a groove, slide the seal under the screws at one bottom corner and tighten the screws halfway to keep the seal in place while you install the rest of it.
Insert the rest of the seal into the groove or under the screws as you move slowly around the door opening. Tighten all of the screws once the seal is in place, if applicable to your dishwasher. Make sure you do not over tighten the screws as this will compress the seal and leave gaps where water can leak out of the dishwasher.
Place a lit flashlight inside the dishwasher and shut the dishwasher door to check the fit of the seal. Turn off the light in the kitchen and look for any light coming from the inside of the dishwasher. This will show you if there are any gaps in the new door seal.
Soak the new door seal in warm water for 10 to 15 minutes to soften it and make it easier to stretch out.