Brian, it's a classic fault on the WMA range - door lock flashing. The only way to sort this is to replace the door lock AND the main module (behind the front panel). We stock them at £53.88 inc postage (exchange). This is ready programmed for your model number. To order, go to our website at www.emwelec.co.uk and put WMA30 in the search box or call us on 01159652118. You will still have the option of returning the module within 14 days for a refund (less our handling of £12) if it does not sort out the problem. Tony EMW Electronics
Tony
December 2016