Glow worm Xtrafast Fault

25 Jan 2006
Reaction score
United Kingdom
Hi All..
Got an intermittent issue with my Glow worm Xtrafast 96 combi boiler.
When the heating system first starts up (morning or eve) a little red triangle flashes and a symbol of a Fan in an upside down funnel shape flashes (excuse the non-technical desption!). Now I've looked up the fault code in the manual and it gives the explanation of 'No Fault'!! Really useful fault code huh?
All it takes to get it working is a small tap anywhere on the unit and away she goes and works fine from that point onwards. But because it takes such a small 'nudge' to get it working it's almost impossible to perform any diagnostics or fiddling within the unit without inadvertantly getting it fired up. This is happening once every 3-4 days.

Any ideas? guys have been so helpful in the past I'm hoping you can help me again. Keep up the good work, I certainly appreciate it.
Many thanks in advance.

PS.. URL to manual (Page 27):
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