How to Install a Dishwasher Where There Was None

How to Install a Dishwasher Where There Was None

Proper hookup and an understanding of repair procedures will ensure a long life for your dishwasher.

A dishwasher uses the hot water supply only, and needs to be installed as close as possible to the kitchen sink to be able to tap into the hot-water supply line and the sink’s drain.

Be sure of the rough-in dimensions before buying a dishwasher.

With a tee, build a run from the hot-water supply line to the intake valve on the dishwasher. The fittings at this point depend upon the manufacturer’s directions. It’s advisable also to place a shut-off valve on the run for emergency repairs

The drain hose is connected to the outlet valve in the back of the washer and brought to the sink, where it is tapped into the sink drainpipe above the trap. Use a gradual bend in the hose to ensure adequate drainage pressure.

Hook up the wiring and test your dishwasher.

Make sure the temperature of the water entering the dishwasher is at least 60C (140 F). Anything cooler will prevent your dishes from coming clean If the temperature is cooler, adjust the temperature gauge on the hot-water heater.

If small children are in the house and the hot water supply is at a lower temperature (48°C/120°F) to prevent scaulding accidents, you may wish to install a small electric step-up water heater. This heater is installed under the sink to increase only the temperature of the hot water entering the dishwasher.

Dishwashers can develop a number of problems over time. The rubber gasket around the door can deteriorate, causing leaks around the door during the wash cycle. To repair, simply replace with a new gasket, following the manufacturer’s directions for installation.

If your machine won’t start and the fuses or circuit breaker are in operation, or if your machine goes through one or more cycles then stops without proceeding to the next cycle, you could have a faulty timer switch. Buy a new switch of the appropriate model. Disconnect the power before touching the timer. Then remove the wires one by one from the old switch and attach to the new one.

If your tank doesn’t fill high enough with water, check the water pressure in your system. If water doesn’t stay in the tank, tighten the drain valve flange.

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Connecting the hot water and the drain are the only two plumbing connections necessary for a dishwasher. Be sure to follow the manufacturer’s instructions for the drain installation. Some models require the drain pipe to be raised above the level of the water in the machine. Others allow you to connect the drain through the floor and along the joists in the basement. Make sure you attach an external shutoff valve on your line in case of emergency.

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