Sounds like main module fault (back of machine in white plastic box). We stock it at £59.88 + £6 post (exchange). This is ready programmed to go straight in to your machine. Of course, you always have the option of returning the unit within 14 days for a refund, less our handling charge of £12. To order, go to our site at www.emwelec.co.uk and put HVF344 in the search box or call us on 0115 9652118. Tony EMW Electronics
www.emwelec.co.uk, November 2012
