The Main Parts of a Dishwasher (Diagram Included)

Parts of a Dishwasher

According to the U.S. Energy Information Administration (EIA), approximately8000萬戶家庭在美國有一個洗碗機。如果你有一個,那麼這是一個很好的機會,這是一個常規為您節省最多的設備。否則,您可以輕鬆增加20分鍾的每餐,以便洗滌和擦洗鍋和盤子!

然而,我們中的許多人都不知道洗碗機如何工作。有很多sizes of dishwasherson the market from built-in to portable dishwasher type – but most have a similar mechanism.

The internal mechanisms that guide your dishwasher through its hard day are too complex for a layman to repair without help. Still, if something breaks, you should be able to at least order the right replacement parts.

In this quick guide, we have listed all of the dishwasher parts, plus the role they keep in making everything work together.

Parts of a Dishwasher

From the outside, a dishwasher has 4 different main parts: a tub, a motor with its internal mechanisms, a heavy door, and its controls.


The Tub

The largest of all these parts is the tub. This is where all your dishes and pans go during their cleaning cycle.




Most of the space inside the tub will likely be taken up by a series of stainless steel racks. Although they seem simple, racks are often strategically arranged to fit the largest amount of wares without letting them touch each other.

Some models will include specific racks for special items. These include:

  • A silverware basket
  • 擴大玻璃器皿或餐具的尖齒
  • The lower dishwasher rack, for metal or heat-resistant items
  • The upper rack, for porcelain items





The Inlet Valve

This is the valve from which water comes inside the tub. Depending on the model, it may empty directly inside the tub or into the same container as the soap dispenser.

The Heating Element

This is a thick, bent wire that helps heat the water that will be used for washing, or the air for drying.




This safety device is easy to miss but very important. It is usually kept in the front corner of the tub. This small floating part is meant to detect when the water reaches a specific level. When it does, it starts floating and will press on the switch behind it.


This switch is always placed immediately behind the floating bulb. Once the bulb starts floating, it will press against the switch. This will turn off the water flow and prevent overflowing.





The circulation pump

This part is connected directly to your main water supply. It is designed to siphon it out and direct it to the water inlet and the spray arms if there are any.


We all know that we are supposed to remove all traces of food before we stick any plates insides the dishwasher. However, every once in a while, a few bites of meat can find their way inside there. As an added protection, the dishwasher filter will trap these small pieces and prevent them from jamming the water circulation pump.

The motor



A set of pipes help the water circulate.

The Door

Most dishwashers open at the front, so in the event of a malfunction, they could theoretically open and break all your glassware. Because of this, the dishwasher door requires a few extra parts to keep everything secure.


The actual door is usually as thick as a fridge’s, as it is meant to insulate the tub and allow the water inside to heat up.

The door seal


The door latch

Some dishwasher models also include an additional childproof latch assembly. A dishwasher door latch seals the door automatically when the dishwasher is in operation, preventing anyone from opening it.

The Controls


  • A main on/off button
  • A start and pause button
  • “模式”按鈕,允許您選擇循環或任何特殊操作模式
  • 箭頭控製水溫
  • LED號碼屏幕

Final Thoughts