Appliance Parts From ApplianceZone.net - Dishwasher Appliance Repair

The Association of Home Appliance Manufacturers estimates that a dishwasher saves you up to four hours a week over hand-washing dishes. So below we offer you some tips that should help save money and extend the life of you dishwasher.

A dishwasher combines water with detergent, heats the mixture and sprays it against the dishes. It pumps out the dirty water and then rinses the dishes with clean water mixed with a rinse agent. After pumping out the rinse water, the dishes are dried by either heating or air drying them. The selector switch allows you to pick a variety of cycles which vary the length of wash, water temperature and drying temperature.

When the door latch is closed, the door switch is engaged and allows the dishwasher to operate. Based upon the chosen cycle, the selector switch signals the various components to operate at the appropriate stage of the cycle. The timer regulates the length of each stage of a cycle.

The water inlet valve fills the tub with water. A float in the tub prevents the dishwasher from overfilling. Either the float or the timer signals the inlet valve to close. The detergent is then released into the tub. In many dishwashers the mixture is heated with an electric heating element. Water that is not warm enough results in poor cleansing.

The motor turns a pump which forces the water up through the spray arms and spray tower (if any). The pressure of the water causes the arms to turn.

Some dishwashers have a two-way motor. When it turns in one direction, it pumps the water through the spray arms. When it turns the other way, it pumps the water out through the drain. If the motor only turns in one direction, then an actuator moves to channel the water either to the spray arms or to the drain.

After the detergent cycle is complete the dishes are rinsed. If the dishwasher has a rinse agent feature, the rinse agent is added to the rinse water.

Once the rinse cycle has completed and the water has been pumped out, the dishes are dried. A electric heating element heats the interior of the dishwasher. Some dishwashers also have fan to circulate the air. A thermostat prevents the dishwasher from overheating.

Some dishwashers employ soil sensors to monitor the clarity of the wash water. When the water becomes clear, the sensor signals the control timer to advance to the next cycle.

Stains and odors

Exterior cleaning

Use dishwasher detergent, not hand washing dish detergent

Prevent spotting on glassware

Clean food drain and filters

Spray arm cleaning

Check gaskets occasionally

Dishwasher scratches

Rust on dishes

Run the washer without the heated dry setting

Stains and odors

The interior of the dishwasher need not be cleaned if it is being used regularly. If it goes unused for a week or more then bad odor may emanate. Dishwasher cleaner and deodorizer can be used for this purpose. If you see many stains, clean with dishwasher detergent and water. Wear rubber gloves to protect the hand from alkaline detergents.

Exterior cleaning

Just clean the exterior of your dishwasher with a damp sponge and a little dish detergent.

Use dishwasher detergent, not hand washing dish detergent

Hand washing dish detergent must never be used in dishwater. This will create large foam of bubbles, which will leak from the dishwasher. If hand-washing detergent is accidentally used, the foam may be removed by spraying with salt and the dishwasher should be forced into a drain cycle to remove the soap and water. It is better to use detergents that are specifically meant for dishwashing. Inexpensive powders sometimes contain sand and these detergents should be avoided to prevent wear of the dishes and the dishwasher.

Prevent spotting on glassware

It is recommended to use 'rinse-aid' that prevent spotting on glassware caused by insoluble deposits left behind on surfaces by droplets of water that dry of evaporation. Rinse aid contains surfactants that help prevent the formation of droplets by reducing the surface tension of water.

Clean food drain and filters

Check and clean food drains and filters every other week to avoid clogs.

Spray arm cleaning

Small holes in the spray arms of your dishwasher sometimes become clogged with bits of glass, paper, toothpicks, etc. By taking a moment to clean out these small holes, from time to time, your dishwasher will do a better job of cleaning your dishes.

Check gaskets occasionally

If there are cracks or gaps in the seal, water can drip out and the gasket must be replaced.

Dishwasher scratches

Check the inside of the dishwasher for any scratches or places where the coating may be missing off of the dishwasher rack.

Rust on dishes

If you notice rust on your dishes, there may be areas of the rack that the coating was scratched off and should be replaced with water proof sealant or some type of plastic coating.

Run the washer without the heated dry setting

Dishes can air dry without the use of heated air, savings the energy that would otherwise be required for this purpose.

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