How can I fix the water leak on a Whirlpool LA5580XT washing machine?

Most likely a faulty inlet valve - replace it.

Spares suppliers:
http://www.easyspares.co.uk/
www.4directelectricals.co.uk
http://www.ukwhitegoods.co.uk
www.ukapplianceparts.com
http://www.domesticspares.co.uk
http://shop.ezee-fix.co.uk
http://www.espares.co.uk
or simply go into google and type in "washing machine spare parts" - selecting "pages from uk".

Repair and service your own washing machine. Go to www.2ndwave.co.uk/manual.html

dannyboy
December 2008