Sometimes a dishwasher that isn't working properly requires a homeowner to do determine what's out of order and what can be done to fix the problem. Having necessary tools on hand, such as pliers, a wrench, and screwdriver before beginning any dishwasher troubleshooting or repair work will save time. Before attempting any repairs, it's a good idea to check an owner's manual for dishwasher troubleshooting tips, as different types of dishwashers may have options or features that require special servicing. It's also crucial to unplug the power from the dishwasher before attempting to service the machine.
For dishwasher troubleshooting to determine why the machine isn't cleaning effectively, a good place to start is usually the valves and drainer cup. These may become clogged with food particles, preventing the machine from doing an efficient job. A malfunctioning filter may also be to blame in this case. The owner should remove the filter and clean it, using mild soapy water. It's important to allow the filter to dry before replacing it in the machine. If any rips or tears are noticed, the owner should contact the manufacturer for replacement parts.
Occasionally, a dishwasher owner may find an error code on the machine's digital display. This can indicate one of several issues. The problem can be determined by comparing the code on the readout to the exact match listed in the user manual. If no user manual is available, it's best to check with the manufacturer directly. This is why it's important to keep the customer service phone number in a safe place before dishwasher troubleshooting is needed.
Before beginning a repair or checking for problems, it's best to let the dishwasher cool down after a cycle. Most dishwashers remain warm or even hot for up to an hour after use, and touching the circuitry before it cools could result in burns. Also, allowing the machine to completely drain and dry out will make it easier for dishwasher troubleshooting.
For a dishwasher that is not filling to capacity, it's best to check the valve that controls water supply. This is typically directly under the sink. If the valve is partially blocked, or closed, turning it as far as possible to the right may solve the issue.
Occasionally, a dishwasher may become excessively noisy or make an unusual humming or vibration sound when in operation. This could be caused by a mechanical defect, but there may be a more common reason. It's import to situate the machine on a level surface to avoid pulsations that cause a noisy motor.