Black Stains In Soap Dispenser Tray... Help !

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

Black staining in softener drawer diagnosed as mould build-up

The problem

A cold-fill washing machine developed black stains over several months in the fabric softener dispenser tray and the housing it slides into. The staining could be scrubbed off but was difficult to remove.

Likely cause

The accepted reply said it sounded like black mould, described as a common washing machine problem. No further cause or component fault was confirmed in the discussion.

What fixed it

The thread was marked solved, but no specific repair or cure was documented in the discussion. The accepted answer identified the issue as likely black mould build-up rather than a mechanical fault.

Checks to try

• Black staining was present in the softener dispenser and drawer housing
• Build-up developed over several months
• Stains could be scrubbed off, but not easily