This component pumps the water through the dishwasher. The pump has two impellers, top and bottom. These, as well as other components, can become clogged with food or detergent.
How do I unblock my dishwasher? Break up drain clogs with a homemade solution. If your dishwasher drain is clogged and causing water to back up, you can try using a homemade solution of vinegar, baking soda and hot water to break up the clog. First, pour a solution of baking soda and vinegar down the basket at the bottom of your dishwasher.
Should there be water in bottom of dishwasher? Dishwasher Water in the Bottom of the Tub. Some water standing water , usually one to two cups, remaining in the bottom of the tub is normal.
The high drain loop prevents back flow of water from the drain into the dishwasher if an air gap is not installed. How do you clean a dishwasher with vinegar and baking soda? Remove the lower access panel under the main door. The panel is usually attached with several Phillips-head screws.
Touch the tip of the voltage tester to the wires feeding the motor to verify that the wires are not live. The tester will light up and chirp if there is electricity. Touch the tester to the copper windings of the motor if they are visible. The windings can retain electricity for some time even after the circuit breaker has been turned off. Place an old towel under the pump discharge outlet hose. Compress the arms on the spring-loaded clamp with a pair of adjustable pliers and move the clamp down the hose several inches.
Pull the hose off of the pump discharge outlet. Some water will dribble out onto the towel. Disconnect the ground wire, the wires or plug leading to the motor and the wires to the thermistor. If the dishwasher works, the latch is faulty and should be cleaned, tightened, or replaced.
Step 4: Make sure the water is turned on and the water temperature is high enough. A breakdown in the water heater could stop flow of water to the dishwasher. Test the hot water in the kitchen sink or bathroom. If you can draw hot water, the water heater may not be at fault.
Step 5: Make sure the controls on the control panel are properly set. The newer push-button controls can be very sensitive; make sure the buttons are firmly pressed into position.
If you've gone through these five checks without finding the solution, it's time to dig deeper into the dishwasher. Access to the working parts of most dishwashers is through the front door of the unit. Many repairs can be made to the machine by simply opening the door and reaching into the various component parts, such as the sprayers, strainers, float switch, racks, and door latch. To get to the control panel on the door, remove a series of retaining screws around the panel. These screws may be under molding trim strips, which usually snap onto the metal housing.
Pry off the strips with a stiff-bladed putty knife or a screwdriver, or remove a setscrew that holds the molding.
The control knobs are friction-fit on shafts or are held by small setscrews in the base of the knobs. In some dishwashers, the entire front door panel must be removed to gain access to the control components. This panel is held to the door by a series of retaining screws, usually found around the edge on the inside back of the door. On many models, once the control panel is removed the door panel can be removed by unscrewing a series of fasteners holding the door panel in place.
Sometimes these retaining screws are covered by trim moldings, which must be pried or slipped off. For access to the motor, pump, hoses, inlet valves, and other parts, remove the lower access panel. This can usually be done without removing the entire door. The panel may be held by retaining screws, or it may lift up and off metal hangers. If the dishwasher is portable, tip the machine over on its back or side before removing the control door or lower access panels.
This may give you a more comfortable working position. Once you can get inside the dishwasher, knowing the major parts and how they function will help you assess the problem.
We'll review the main parts and how to check them in the next section. When your dishwasher isn't working properly, you should check several main components, such as the door gasket, door latch, switches, and timer. If water leaks through the dishwasher door, the gasket is probably faulty. Open the door and examine the gasket. It should be soft and resilient.
If it's worn, cracked, or hard, it should be replaced. Once the gasket is in place, check it for fit against the door frame. It should fit tightly with no cracks or bulges between the gasket and the frame. If necessary, tighten or loosen the retaining screws, or refit the gasket in the clips or the door channel.
Then run the machine through a washing sequence and check for leaks. If you spot a leak, and the gasket seems to be properly in place, try adjusting the door latch.
The trick is to position the gasket against the frame of the door without flattening the gasket or squeezing it too flat when the door is latched properly. Adjust the latch or the gasket until it fits snugly against the door frame. The latch on a dishwasher door is opened and closed repeatedly, and this hard use can lead to mechanical problems.
The latch may be loose, or it may have slipped out of position, throwing the alignment off and preventing the door from closing properly. When this happens, the latch does not engage properly, and the dishwasher will not start.
In many cases, you may be able to solve the problem by adjusting the position of the latch. Move the latch slightly by loosening the screws that hold it. Slide the latch with your fingers or pliers; the screw slots are made especially for this purpose.
Close and open the door to see whether the latch is properly aligned. Tighten the screws to hold it in the correct position. After repositioning the latch, check to see if it's working properly. Close and latch the door and turn the control knob to the ON position.
If the dishwasher doesn't start, the latch is faulty. Replace it with a new latch, connecting it the same way the old one was connected. You may have to move the new latch back and forth several times before it works properly. On many dishwashers, the latch engages a switch to activate the timer and other control components. If the latch is not completely engaged or if the switch is faulty, the machine will not operate. Here's how to test and repair a door switch:. Step 1: Latch the door and hold the latch tightly in the closed position.
This works best on a unit with a lever-type latch. Then turn the control to the ON position. If the unit works, the problem is probably a misaligned lock unit.
Adjust the lock unit with a screwdriver. If this doesn't solve the problem, the switch may be faulty. Remove the panel covering the door switch and remove one of the electrical lead wires of the switch from its terminals.
Clip one probe of the VOM to each switch terminal and shut the dishwasher's door. If the meter reads zero, the switch is working. If the meter reads higher than zero, the switch is faulty and should be replaced. Step 3: Replace the switch with a new one of the same type. Connect the new switch the same way the old one was connected. Dishwashers are usually protected from overfilling by a float switch.
This switch is located in the bottom of the unit. Here's how to check and replace it:. Step 1: Open the door and remove the bottom dish rack. Check to see if the float valve is stuck. If it is, clean away food debris around the float. With a screwdriver handle, lightly tap the top of the float to free it. Step 2: If tapping doesn't work, remove the lower access panel and locate the bottom portion of the float and float switch. Unscrew one electrical lead wire to the switch terminal, and clip one probe of the VOM to each terminal.
If the meter reads zero, the switch is not faulty. The trouble is probably in the timer. If the meter reads higher than zero, the switch is faulty. Step 3: Replace the switch with a new one made to fit the dishwasher. The switch is held to a mounting bracket with screws; remove the screws to get the old switch out. Because the timer controls many operations, a faulty timer can cause many problems.
The timer is a complex component, so you shouldn't attempt a do-it-yourself repair. To gain access to the timer, remove the front control panel. The timer is directly behind the main timer control knob. Disconnect one of the timer's terminal wires and clip one probe of the VOM to each terminal.
If the meter reads zero, the timer is working. If the meter reads higher than zero, the timer is faulty and should be replaced. If possible, use the same procedure to test the selector and cycle switches. The wiring hookup, however, may be too complicated to figure out on either of these switches. If you aren't sure you can deal with these switches, call a professional service person. Replace a faulty timer -- or a faulty control switch -- with a new one made for the dishwasher.
The timer is connected to several wires that supply power to operate the various functions of the dishwasher. To replace the timer, have a helper hold the new timer next to the old one.
Connect the wires of the new timer one by one, removing the old wire and connecting the new, to make sure you connect the wires correctly. The wires may be friction-fit on the terminals. If they are, use long-nosed pliers to remove the wires.
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