my friend has a glow worm xtrafast 65 boiler about 8 years old ( not condensing) it was drained down to move some pipework... now when filling up the boiler reads "20 ff" which when reading through the fault finding page says "communication error" can anyone help with this please..
boiler faultfinding
- Thread starter 1iydwilly
- Start date
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namsag
Yeah i know but i dont know how to put it into words.. 
(communication error)
Most faults like this can be cleared by turning power of at fused spur for a few mins
(communication error)Most faults like this can be cleared by turning power of at fused spur for a few mins
tried that but no luckYeah i know but i dont know how to put it into words..
Most faults like this can be cleared by turning power of at fused spur for a few mins
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Is the boiler firing up
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