Sounds like a main module fault.
We stock it at £53.88 (exchange). Module is all programmed and
ready to fit. If it does not sort the problem,
you can return it for a refund, less our
handling charge of £9+vat. Go to our site at
www.emwelec.co.uk and put WM12X in the search box or call us on 0115 9652118
Tony www.emwelec.co.uk
EMW Electronics, May 2012