Rubber seal keeps going wavey at bottom

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Beko WM8120W door seal going wavy at the bottom

The problem

A Beko WM8120W washing machine, 7 months old, had the rubber door seal replaced once and the replacement was also becoming wavy at the bottom. The user also reported a small build-up of water at the bottom of the seal after washes.

Likely cause

The accepted reply says a wavy door seal is usually caused by a chemical reaction affecting the rubber, from products put in the machine or residues on laundry. No machine defect was confirmed in the discussion.

What fixed it

Check whether anything other than normal detergent and fabric softener is being used, or whether washed items may have substances on them that could react with the rubber seal. The exact repair was not confirmed. As the machine was under guarantee and an engineer visit was already awaited, further diagnosis should be carried out by a suitably qualified appliance engineer.

Checks to try

• Seal had already been replaced once
• Problem was at the bottom of the seal where it looked wavy
• Water was reported collecting at the bottom of the seal after each wash
• Accepted reply asked whether anything other than normal detergent and fabric softener was being used
• Accepted reply asked whether laundry could have residues reacting with the rubber

Parts or tools mentioned

• Door seal