Roomba 530 - bump sensor fail - UK IR LED Source?

[arduino88]

So my roomba started doing the 9 beeps of death. On investigation (using the built in test/debug software) I found out that the left bumper was always registering as being on.

Am I right in thinking this simply needs replaced or could it possibly just need cleaned/aligned?

If replaced does anyone know the part number/spec of the IR Led for the UK Roomba 530?

I'd prefer to order from the UK as the import duty and time taken to arrive from overseas is undesirable for cost/time aspects.

Thank you and have a great New Year.