Sounds like main module failure. We stock it at £59.88 + £6 post (exchange). Remember, that you have the option of returning the module within 14 days for a refund, less our handling charge of £12 if it does not cure the problem. To order, go to our website at www.emwelec.co.uk and put WT721 in the search box or call us on 0115 9652118. Tony EMW Electronics
www.emwelec.co.uk
February 2013