To be fair, after heavy rain, the subway at Didcot is often out of action too, so no need for any lifts to be working.
The subway which is of course at ground level. It is usually a problem with blocked or collapsed drains somewhere - this issue arises outside in general periodically on Station Road / Hitchcock Way as well in the area in heavy rain.
Many years ago the Platform 2&3 lift was out of action for months with the offered solution for those who needed it being travelling via Swindon.