During routine quality inspection procedures it has been discovered that a manufacturing defect may be present in the above Glow-worm Micron boilers manufactured between 25th October 2006 and 2nd May 2007. All Micron boilers are tested after manufacture, but the defect does not become apparent...
Having done some research on this fault with my Micron 70ff boiler I was tipped off that the ignition electrode has been modified to overcome this problem. The modified part has a twin electrode (part No 2000802541 and available from keeptheheaton.co.uk) whereas earlier models were single...
I had a similar fault with my Micron 70ff boiler and research suggested that the ignition electrode has been modified to overcome this problem.
The modified part has a twin electrode whereas earlier models were single electrode. Correct spark gap is also important.
It worked for me so good...