www.elddis.co.uk I'm sure if you contact them using their online form they will be happy to assist.
My Lunar Solar is the same they never make things easy all it would take is extra pipework to be able to release the tap assembly raise it above the sink to work on changing/repairing taps/microswitches.
bob
June 2012
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howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix caravans/motorhomes.