AEG Dishwasher: rusting

Professional Repair Guide

What is this symptom?

If your AEG dishwasher is showing rust stains inside the tub, on racks, or affecting cutlery post-wash, it’s likely due to damaged rack coatings or rust from utensils. This issue can lead to unsightly stains and affect your dishes' cleanliness.

Urgency: Medium

Important Tips for AEG Models

AEG support specifically notes that rust from cutlery or damaged rack coating can float and deposit inside dishwasher; replace baskets/racks if coating is compromised.

Possible Causes

Damaged or worn protective coating on dishwasher racks exposing metal

How to Identify: Visible rust spots on rack tines; chipped or worn plastic coating exposing bare metal.

Part: Dishwasher racks (metal framework under plastic coating)

Rust originating from utensils or cookware

How to Identify: Rust appears on utensils and also transfers to dishwasher interior; items made of lower-quality metals often show initial corrosion.

Part: Cutlery and other washed items

Water supply containing iron or mineral-related corrosion

How to Identify: Rust-colored water, staining in dishwasher even without metal items rusting inside; rust appears even on stainless components.

Part: Water inlet / plumbing supply

Hard water with high mineral content

How to Identify: Mineral buildup visible on surfaces; rusty spots form where water deposits leave minerals that trap moisture.

Part: Internal surfaces, metal components

Scratches or damage inside the dishwasher tub

How to Identify: Scratches or abrasions in tub coating; rust forming specifically at scratched areas.

Part: Dishwasher interior tub surface

DIY Solutions

Deep Clean and Remove Floating Rust with Citric Acid or Vinegar

Easy 30–60 minutes

Tools Needed: citric acid powder or white vinegar

Remove all dishes and utensils from the dishwasher.
Place citric acid powder in the detergent dispenser (or a cup of white vinegar on the top rack).
Run the dishwasher on the hottest cycle to dissolve rust deposits.
Repeat if necessary for persistent rust.

⚠️ Safety First: Avoid mixing citric acid or vinegar with other chemicals; ensure proper ventilation.

Inspect and Repair Rack Coating

Moderate 30–90 minutes

Tools Needed: rack repair kit or high-temp sealant

Inspect dishwasher racks for chipped or worn coating exposing metal.
Use a dishwasher rack repair kit to coat exposed metal according to kit instructions.
Let coating cure fully before using dishwasher again.

⚠️ Safety First: Follow repair kit instructions; wear gloves if needed.

Next step

Choose the next step for rusting

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Check during diagnosis

Most relevant component to inspect

Detergent Dispenser

Releases detergent, bleach, or rinse aid at the correct moment in the cycle.

Typical part-only price: $30 - $70
DIY difficulty: Easy
Estimated time: 15-30 mins

Optional: enter your model number

Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.

Professional Repairs

Replace Rusted Dishwasher Racks

Estimated Cost: $50 - $150

Diagnose and Treat Water Supply Corrosion

Estimated Cost: $150 - $400+

When to Call a Professional

If rust persists after deep cleaning and rack repair attempts

If rust appears to originate from water supply or plumbing corrosion

If structural components like heating element or tub are heavily rusted

Preventive Maintenance

Inspect dishwasher racks and touch up coating: Rust formation on racks and interior
Frequency: every 3–6 months
Run a citric acid or vinegar cleaning cycle: Mineral buildup and floating rust deposits
Frequency: monthly
Ensure items placed in dishwasher are rust-free: Rust transfer from utensils
Frequency: every load

Frequently Asked Questions

Why is my AEG Dishwasher rusting?

Rusting can be caused by damaged rack coatings, rust from utensils, or corrosion in the water supply.

How do I fix AEG Dishwasher rusting myself?

You can use citric acid or vinegar for deep cleaning and repair rack coatings with a dishwasher rack repair kit.

How much does it cost to fix rusting?

Professional repairs for rusting can range from $50 to $150 for rack replacement, or $150 to $400+ for water supply diagnosis.

When should I call a technician for rusting?

If DIY solutions don't resolve the rusting or if you suspect water supply issues, it's best to consult a technician.

References & Sources

Rust spots on cutlery after washing in the dishwasher | AEG Official
How to Prevent Rust And Corrosion Inside Your Dishwasher Repair-Blog
Dishwasher - Interior Rust Staining - GE Appliances Repair-Blog

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

100%

DIY Success Rate Difficulty: DIY

Common Issues Reported by Users

Incorrect water hardness setting contributing to rust buildup (1 mentions)

User Suggested Solutions

Clean rust spots with a pink scotch Brite pad and stainless steel polish

Success rate: 50.0%

Analysis based on 2 community discussions
View Sources

Data compiled from real discussions on r/appliancerepair and r/Appliances:

Community Discussions

rust spots inside dishwasher

Clean rust spots with a pink scotch Brite pad and stainless steel polish; incorrect water hardness setting may contribute to buildup.