Geof, this is probably a module fault. Look for the part number on your module (9 digit number starting with 546...). We stock them at between £47.88 - £59.88 inc post (exchange). If the module does not sort the problem, you can return it for a refund, less our handling charge of £10.80. Call me (Tony) on 0115 9652118 EMW Electronics
EMW, May 2012