If your dishwasher is not washing dishes as it should, you should first check the cycle and selector switch. Sometimes the wiring hookup is complicated to decipher, so calling a service person is recommended. If you are not comfortable attempting to fix this problem on your own, you can replace the switch with a new one. If the timer or the selector switch is faulty, you should replace it as well. If you are unsure of how to proceed, you can also check the power supply.
Cleaning the lower impeller
If your dishwasher does not drain properly, the drain is probably clogged. To remove the clog, you can use a wire hanger. Be careful not to place anything large in the rear sump of the tub. A toothpick can be used to clean it. Make sure the gasket is not cracked or broken. Also, make sure the motor is turning freely and has plenty of power. If you notice any signs of damage, contact a technician.
Checking the power supply
Before beginning your dishwasher repair, make sure that the appliance’s power cord fits snugly into the wall outlet. To test the outlet for liveness, plug another appliance into it to see if it’s working. If so, it’s likely that the power supply is faulty. If you can’t find the problem, check the breaker. If it’s tripped, reset it. In any case, check the circuit breaker and other appliances in the house.
Checking the timer
When it comes to dishwasher repairs, checking the timer is a vital part of the process. This small component controls many dishwasher commands and operations. If this is the case, you should seek the services of a repairman. It is important to note that worn wiring is the most common culprit. If you cannot repair the timer yourself, contact a repairman to replace it. First, you need to remove the front panel of the timer, which is usually located behind the control knob.
Checking the solenoid
Troubleshooting your dishwasher may involve checking the solenoid. The solenoid controls the valve for the water to enter the dishwasher. It is normally found on the side of your dishwasher. To check whether it’s faulty, disconnect it from power and water. Use pliers to remove any debris or obstructions from the valve and check its terminals. If they read infinity, the solenoid is likely faulty.
Checking the valve
Checking the valve when doing dishwasher repair can be easy if you know how to access it. It is a small ball or flapper at the beginning of the drain tube and allows water to flow out. If you can’t access this part, you can remove the valve by releasing it from its socket and pulling it off. You may need to use needle-nose pliers to remove the connectors. If the valve is damaged, it is best to contact a dishwasher repair service.
Checking the control switch
Dishwasher fault codes will indicate the malfunction of the dishwasher’s control switch. You can check the switch using a VOM. Set the scale to RX1. Connect the probes to the switch’s terminals. If they read zero, the switch is working correctly. If they read a higher number, it’s likely the switch is faulty. The switch is typically held to the control panel by screws.
Checking the heating element
The heating element is the main component responsible for drying and heating water inside the dishwasher. When the heating element is malfunctioning, the cycle may not complete properly or leave the dishes unclean. Check the element by unplugging the dishwasher to avoid an electrical shock. Open the door of the dishwasher and look for the heating element, which is connected to two terminals on the bottom of the tub. Look for visible signs of damage, such as blackened edges. If the heating element appears to be damaged, check it with a multimeter.