Dishwasher Leaking Water: 7 Common Reasons and How to Fix Them

Last night, I walked into the kitchen feeling pretty good—cucian piring semua sudah saya masukkan ke dishwasher, tinggal nunggu beres sambil minum teh. But when I stepped near the sink, krek! lantainya licin. Saya lihat ke bawah… ada genangan air mengalir pelan dari bawah dishwasher. Jantung langsung jatuh. “Ya Allah, jangan bilang mesin ini rusak lagi…” That mix of panik + kesel langsung nyamber.

Part of me wanted to matikan mesin dan pura-pura nggak lihat—biar masalah hilang sendiri. Tapi bagian lain dalam diri saya bilang, “Bro, kalo didiemin, lantai bisa hancur, listrik bisa korslet, dan kamu malah keluar biaya lebih besar.” So I grabbed a towel, jongkok di lantai, and started investigating like detektif dadakan. Turns out, the issue wasn’t catastrophic at all—lebih ke masalah kecil yang gampang diperbaiki.

Dan malam itu saya sadar: kebanyakan orang panik duluan kalau dishwasher bocor, padahal 80% penyebabnya hal-hal sepele yang bisa kamu perbaiki sendiri. Ini dia panduan lengkap yang saya harap kamu baca sebelum memanggil teknisi.


1. The Door Seal (Gasket) Is Worn, Dirty, or Damaged

The rubber seal around the dishwasher door is designed to keep water inside.
Kalau sudah aus, sobek, atau kotor menumpuk, air akan merembes keluar.

Signs:

  • water leaking from the front door
  • musty smell around the seal
  • visible cracks or mold

Fix:

  • Clean the gasket with warm soapy water
  • Remove food residue and debris
  • Apply a thin layer of petroleum jelly to soften the rubber
  • Replace the gasket if it’s cracked (cheap & easy)

This alone solves 40% of dishwasher leaks.


2. Clogged or Dirty Filters

Dishwasher filters trap grease, food scraps, and debris.
Kalau penuh, air akan mengalir kembali dan bocor keluar.

Symptoms:

  • water pooling at the bottom
  • slow drainage
  • leaking during drain cycle

Fix:

  • Remove bottom rack
  • Twist and pull out filter
  • Clean with warm soapy water
  • Remove trapped food

Do this routinely—minimal 1x seminggu kalau kamu sering masak berat.


3. Overloading the Dishwasher (Yes, It Can Leak)

Many people think stuffing more dishes saves time—but actually, it forces the door to misalign and water escapes.

Warning signs:

  • dishes stacked too close
  • tall plates pushing the door
  • spray arms hitting utensils

Fix:

  • Rearrange dishes
  • Leave space around spray arms
  • Don’t overload the front section

Sometimes the solution is literally: remove one big plate.


4. Faulty or Loose Water Inlet Valve

The inlet valve controls how much water enters the dishwasher.
If it’s cracked or loose, air bisa bocor ke lantai.

Symptoms:

  • leaking during fill cycle
  • water under the dishwasher, not the door
  • hissing noise

Fix:

  • unplug dishwasher
  • remove bottom kick plate
  • tighten inlet valve connections
  • replace valve if leaking (usually $10–$25)

Quick and painless.


5. Damaged Spray Arm (Cracked or Clogged)

Spray arms spin and push water around.
If they’re cracked, clogged, atau tidak berputar, air bisa memantul ke arah pintu dan keluar.

Fix:

  • Remove spray arms
  • Clean holes using toothpick
  • Check if cracked
  • Replace if damaged

This solves leaks that happen mid-wash, not during draining.


6. The Dishwasher Isn’t Level

If the unit tilts forward, water naturally flows toward the door.
Ini sering terjadi kalau lantai miring atau kaki dishwasher tidak rata.

Fix:

  • Use leveling feet to adjust height
  • Ensure slight backward tilt
  • Use a bubble level to confirm alignment

A 1–2 degree tilt can cause big leaks.


7. Leaking Drain Hose or Loose Connection

The drain hose carries dirty water out.
If it’s loose or cracked, water drips behind the machine.

Symptoms:

  • leak from the bottom or back
  • slow draining
  • water near the hose connection

Fix:

  • Inspect hose for cracks
  • Tighten clamps
  • Replace hose if damaged

Hoses are cheap and easy to swap out.


Conclusion: Most Dishwasher Leaks Are Simple to Fix

A leaking dishwasher looks scary, but most causes are:

  • dirty filters
  • worn seals
  • broken spray arms
  • loose hoses
  • or wrong loading habits

Before calling a technician, coba langkah-langkah sederhana di atas.
You’ll be surprised how often the solution is quick and inexpensive.

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