Adrian, it sounds like a main module fault (back of machine). We can supply one at £59.88 + £6 postage (exchange - ready programmed). If it does not sort the fault, then you can return it for as refund, less our handling charge of £12. To order, go to our site at www.emwelec.co.uk and put WT940 in the search box. It will be a mk4 or mk6 (see the photos when you search on our site). Or you can call us on 0115 9652118 Tony EMW Electronics
www.emwelec.co.uk, February 2013
