Hotpoint Aquarius Wd440 And White Marks On Washing

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

Hotpoint Aquarius WD440 leaving white marks on laundry

The problem

A Hotpoint Aquarius WD440 washer/dryer was leaving white marks on washing for several months. The user was using liquid detergent in a dosing cap placed in the drum and did not believe overloading was the cause. They also doubted limescale because they were in a soft water area.

Likely cause

The strongest diagnosis in the discussion was a build-up of grease, gunge or slime inside the machine, possibly associated with continued use of liquid detergent. Limescale and overloading were not supported by the user’s comments, but no fault was conclusively proven.

What fixed it

The accepted advice pointed to internal contamination of the machine as the probable cause of the white marks. No specific repair or cleaning procedure was documented in the thread, and the exact remedy was not confirmed.

Checks to try

• User confirmed liquid detergent was used in a cap placed directly in the machine
• User stated they did not think the machine was overloaded
• User considered but discounted calcium due to living in a soft water area