Learning about dishwasher unusual noises can help you with better troubleshooting your appliance. Different unusual noises can be heard from your dishwasher which can have various reasons. If you have read the article about dishwasher components and parts, you can easily follow us in this article.
First we are going to talk about some of these noises and then the reasons will be discussed.
Warning: always unplug the dishwasher before starting any service or repair operation.
Unusual dishwasher noises
Dishwasher buzzing noise
This is a normal noise heard during the draining operation. But don't ignore it all the time and check your dishwasher parts for any fault.
Dishwasher humming noise
The dishwasher motor makes a quiet humming sound during its operation which is normal. But if the humming noise becomes louder and louder, check the fan. The loud noise may also indicate that there is something wrong with the motor.
Dishwasher squeaking noise
If you have a new dishwasher or you haven't turn on your appliance for a long time, you may hear this noise when there isn't any water in the tub. You can add some water to prevent the noise.
Dishwasher clicking noise
The dishwasher electronic control may make this clicking noise during the washing cycle. So, don't worry.
Dishwasher rattling noise
If the dishes are not properly placed on the racks, you may hear a rattling noise during the washing cycle. A faulty motor can also make the dishwasher rattling noise. So, if you think the noise is not related to the dishes, remove the dishes and turn on the empathy dishwasher. If there is still some rattling noise, the motor is faulty and should be examined carefully and replaced if necessary.
Dishwasher knocking noise
If the spray arms hit the dishes during the wash cycle, you hear a knocking noise. So, open the dishwasher and rearrange the dishes. Rotate the spray arm with your hand to make sure there is no contact with the dishes.
Dishwasher blast noise
The blast noise is probably related to the water pressure of the building. When the water pressure changes suddenly, it can vibrate the tubes and make the blasting noise. Ask a technician to check the piping.
Washer swishing noise
This is the noise of water sprayed on the dishes during the wash cycle and is quiet normal.
The specific reasons for dishwasher unusual noises
A blocked solenoid valve can make a vibrating noise
The solenoid valve controls the inlet water to the dishwasher. If it is vibrating, it means the inlet tap is not fully open or the water pressure is too low. The valve filter may also be clogged
A worn out door gasket makes water flowing noise
If the door is not completely closed, you may hear the noise of water flow around the door. You should have changed their worn out gasket and properly slide the racks in their place to close the door.
Clogged drain pump makes a loud noise
The drain pump evacuate water from the dishwasher. It will make a loud noise if it is clogged. You should disassemble the pump and clean it.
A faulty dishwasher pump makes whistling and vibrating noise
The pump supplies pressurized water to the spray arms. If you hear a whistling noise, disassemble the pump to make sure no broken piece or residue is blocking it. If the noise doesn't stop, do the descaling operation and if it isn't solved, replace the pump.
A faulty pressure switch can make short banging noises
The pressure switch controls the level of water in the dishwasher. If it is faulty, there won't be enough water in the tub. So you will hear short banging noises caused by washing done in short bursts. Check the pressure chamber. If it isn't blocked, replace the pressure switch.
Other noises may also be heard from your dishwasher. We talked about the most unusual ones. If you want to know more information about dishwashers like dishwasher installation, service, troubleshooting and repair, don't miss dishwasher training course in HelloTechnic website. You will be a dishwasher technician by passing this online course and start your own career.
