Beko Dishwasher: high-pitched noise

Possible Causes

Pump bearing wear or cavitation causing squealing/whining

How to Identify: High-pitched squeal that persists during wash/rinse; noise seems to originate from bottom of dishwasher where pump is located

Part: Circulation pump / pump bearings

Worn or damaged spray arm bearings or impeller

How to Identify: Noise correlates with spray arm movement; inspect bearings visually for wear/damage

Part: Spray arm bearing ring or impeller

Faulty water inlet valve causing whistling or squeal

How to Identify: Noise begins during filling phase; irregular whistling from valve area

Part: Water inlet valve

Loose or misaligned internal parts (e.g., spray arm, door gasket)

How to Identify: Noise changes after loading dishes differently; visual loosening of parts

Part: Spray arm, door seal

DIY Solutions

Inspect and clean spray arms and bearings

Moderate 15-30 minutes

Tools Needed: screwdriver (if needed), warm water, toothpick or brush

1. Turn off and disconnect power to the dishwasher.
2. Remove lower and upper dish racks to access spray arms.
3. Remove spray arms and inspect bearings and impellers for wear or debris.
4. Clean any debris from spray arm holes and bearings; reassemble and test run.

⚠️ Safety First: Ensure power is disconnected before servicing interior components.

Check and tighten loose internal parts

Easy 10-15 minutes

Tools Needed: screwdriver

1. Turn off power to dishwasher.
2. Check spray arm attachment points and other accessible screws inside the dishwasher.
3. Tighten any loose screws or fasteners you can safely access.
4. Run a short rinse cycle to see if noise persists.

⚠️ Safety First: Avoid over-tightening screws which may damage components.

Professional Repairs

Replace pump or pump bearings

Estimated Cost: $100 - $300

Replace water inlet valve

Estimated Cost: $50 - $150

When to Call a Professional

Noise persists after DIY cleaning and inspection

Signs of mechanical failure (burning smell, visible part damage)

Preventive Maintenance

• Clean filters and spray arms: Build‑up that can contribute to pump and spray arm noise
  Frequency: monthly
• Run dishwasher regularly to prevent stagnation: Stiff seals and bearing wear due to infrequent use
  Frequency: weekly

Frequently Asked Questions

Why is my Beko Dishwasher high-pitched noise?

Common causes include pump bearing wear, damaged spray arm bearings, or a faulty water inlet valve.

How do I fix Beko Dishwasher high-pitched noise myself?

Inspect and clean spray arms and bearings; check for loose parts inside.

How much does it cost to fix high-pitched noise?

Professional repairs range from $50 to $300 depending on the issue.

When should I call a technician for high-pitched noise?

If the noise persists after DIY checks or if internal components need replacement.

Can I Fix This Myself?

50%

DIY Success Rate Difficulty: Either

Common Issues Reported by Users

• Inverter motor whine (1 mentions)

User Suggested Solutions

1. Inverter motor may produce a slight whine, which is common for this brand.

   Success rate: 50.0%

Community Discussions

high-pitched noise during washing sequence

Beko's inverter motor may produce a slight whine, which is common for this brand.

Pro needed View on Reddit →

Source: Reddit r/appliancerepair