Westinghouse Microwave: not securing wave stirrer cover

Professional Repair Guide

What is this symptom?

If your Westinghouse microwave's wave stirrer cover is loose or not securing properly, it can lead to uneven heating and potential internal arcing. This issue often arises from loose or missing fasteners. It's crucial to address this promptly to avoid damage or further complications.

Urgency: Medium

Important Tips for Westinghouse Models

  • No specific Westinghouse documentation found; use universal waveguide cover replacement guidelines and verify compatibility with model number

Possible Causes

Loose or missing fasteners (screws or clips)

How to Identify: Visible loose or missing screws/clips around the waveguide cover; cover moves or rattles when touched

Part: Waveguide cover and its mounting hardware

DIY Solutions

Secure loose waveguide cover with proper screws/clips

Moderate 15–30 minutes
Tools Needed: Phillips screwdriver, replacement clips (if needed)
  1. Unplug the microwave and ensure power is disconnected.
  2. Open the microwave door and locate the waveguide cover inside the cavity (usually right side wall).
  3. Inspect for missing screws or clips securing the cover.
  4. Install proper screws or replacement clips to secure the cover in place.
  5. Ensure the cover sits flush and does not move when gently pressed.
⚠️ Safety First: Always unplug before any internal inspection

Replace damaged waveguide cover with correct size

Moderate 30–60 minutes
Tools Needed: Screwdriver, correct replacement waveguide cover (OEM or cut-to-fit mica sheet)
  1. Unplug the microwave.
  2. Remove the loose/damaged cover by unscrewing or unclipping.
  3. Obtain a replacement cover sized for your model (or carefully cut a universal mica sheet to match).
  4. Align the new cover properly with mounting points and secure with screws/clips.
  5. Test fit by plugging in and running briefly with a cup of water to ensure no arcing occurs.
⚠️ Safety First: Do not run microwave without secure waveguide cover in place

Next step

Choose the next step for not securing wave stirrer cover

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

Microwave Waveguide Cover

Protects the microwave waveguide opening from food splatter and moisture.

Typical part-only price
$8 - $30
DIY difficulty
Easy
Estimated time
10-20 mins
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.

Other parts options

Check related components first; use model search as a fallback.

Model number required

Model-compatible Microwave parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

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Professional Repairs

Replace mounting hardware and inspect internal components

Estimated Cost: $50 - $120

When to Call a Professional

If the cover remains insecure after attempting to secure or replace it
If there are signs of internal arcing, burn marks, or damage inside the microwave
If you are uncomfortable accessing internal components

Preventive Maintenance

  • Inspect waveguide cover monthly: Loose fittings and buildup that can lead to insecure covers
    Frequency: monthly
  • Clean interior spills promptly: Food debris accumulation that can degrade clips and cover fit
    Frequency: as needed

Frequently Asked Questions

Why is my Westinghouse Microwave not securing wave stirrer cover?
Common causes include loose or missing screws or clips that hold the cover in place.
How do I fix Westinghouse Microwave not securing wave stirrer cover myself?
Unplug the microwave, locate the cover, and secure it with screws or replace it if damaged.
How much does it cost to fix not securing wave stirrer cover?
Professional repair costs range from $50 to $120, depending on the issue.
When should I call a technician for not securing wave stirrer cover?
If DIY solutions do not resolve the issue or if you're unsure, it's best to contact a technician.

References & Sources

Community Analytical Insights

Guidance from available sources; statistical claims are shown only for samples of at least 10 discussions

Common Issues Reported by Users

  • Missing or damaged securing clips for the wave stirrer cover
  • Improper alignment of the wave stirrer cover
  • Wear and tear on the plastic cover leading to inability to secure

User Suggested Solutions

  1. Check for and replace any missing or damaged securing clips. If clips are missing, purchase replacements and install them according to the microwave's manual.

  2. Ensure the wave stirrer cover is properly aligned. Remove the cover and reattach it carefully, ensuring it fits into place correctly.

  3. Inspect the plastic cover for any cracks or deformities. If damaged, replace the cover with a new one from a certified parts supplier.

Limited-source guidance; percentages and success-rate claims are not shown
View Sources

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

  1. Can't find screws for keeping wave stirrier cover up on micr...

Community Discussions

plastic cover for the wave stirrer won't stay up as there's no screws

Use plastic push pins or rivets to secure the wave stirrer cover.

DIY View on Reddit →

Source: Reddit r/appliancerepair

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