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Dishwasher Repair
Dishwasher Repair

Dishwasher Repair

A dishwasher is a machine for cleaning dishware and cutlery automatically. Unlike manual dish washing, which relies largely on physical scrubbing to remove soiling, the mechanical dishwasher cleans by spraying hot water, typically between 45 and 75 °C (110 and 170 °F), at the dishes, with lower temperatures used for delicate items.





How To Fix A Noisy Dishwasher 
A defective pump could be the reason your dishwasher is making loud noises. The function of the pump is to pressurize the spray arms and in most models it is also used to drain the water. The pump sits at the bottom of the dishwasher and typically consists of two separate compartments; one for wash or circulation and the other for drain. The circulation part of the pump will typically consist of the wash impeller and the filter components while the drain portion will consist of a drain impeller and a chopper blade or in some cases, a solenoid operated diverter. The impellers are driven by an electric motor that is attached to the bottom or side of the pump. 
If your dishwasher is noisy, the cause could be a wash arm seal or bearing ring. These parts are plastic rings that support the wash arm or spray arm and that the arm rotates on. Either of these parts could be loose or be worn causing the spray arm to not function properly. Inspect both the seal and the ring and replace if required. 

How To Repair A Leaking Dishwasher 
A defective pump and/or pump seal may be the cause of a dishwasher leak. The function of the pump is to circulate water in the dishwasher and in some models, to drain the water as well. The pump sits at the bottom of the dishwasher and typically consists of two separate compartments; one for wash or circulation and the other for drain. The circulation part of the pump will typically consist of the wash impeller and the filter components while the drain portion will consist of a drain impeller and a chopper blade or in some cases, a solenoid operated diverter. 
The water inlet valve feeds the water from the home’s main water line into the dishwasher and could be the source of a leak. The inlet valve can be found behind the lower kick plate. The hot water inlet supply to the valve may be copper tubing, rubber hose or braided hose. Inspect the supply connection to the inlet of the valve to make sure that it is secure and not the source of the leak. The outlet of the valve will have a rubber or plastic hose that will typically connect to the side of the tub. Check for cracks or tears in this hose and the injector on the tub, as well as the plastic body of the valve itself. These checks are most accurate when done while the dishwasher is filling. 

How to Fix a Dishwasher That Won’t Start 
If your dishwasher won’t start the problem could be the door latch or door latch switches. The door latch assembly is used to hold the door closed during the cycle to prevent water from leaking and it also incorporates the door latch switches that supply power to the dishwasher controls. If the door cannot close properly to activate the door latch switches or if the switches are defective then the dishwasher controls will not receive power and the dishwasher will not start. Inspect the latch assembly including the switches. 
If you have determined that the door latch assembly is operating properly and your dishwasher still won’t start, the next step would be to look at the timer or electronic control. The first step of the dishwasher cycle is normally a drain function to remove any standing water in the tub. If you do not hear the drain pump motor running then you should look at the timer or electronic control as a possible cause. On manual timer models the timer is used to supply power to the pump motor, water inlet valve, heater circuit and drain pump motor at the proper sequence in the cycle. The timer uses a series of electrical contacts that are driven by a small motor all of which are encased in the timer housing. 

How To Fix A Broken Dishwasher Door Latch 
If your door latch is not working properly, the first thing to inspect should be the door catch. The door catch is attached to the top of the dishwasher tub and is normally adjustable. If not adjusted properly it can cause the door latch to not activate and will prevent the dishwasher from working, or it may not close the door tight enough to prevent a leak. The door latch may also be worn and no longer creates a tight fit, in which case the door latch will need to be replaced. The door switches may also cause the door latch to not work properly. The door switches may have no continuity so an electric circuit cannot be completed to the controls. If you think the door switch may be the cause of the problem, you can test them using a multimeter.


Dishwasher Repair

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