Could be a main module fault (if pressure switch ok). We stock it at £49.90+vat plus postage of £5+vat. 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 WMD942 in the search box. Tony www.emwelec.co.uk tel 0115 9652118
EMW
May 2011