F11 fault on Glow worm Ultracom 30sxi

[dbleman]

Hi,
I have just drained my CH system to fit a towel rail and repair a leaking valve joint. When I filled up the system and started the boiler it worked fine for an hour or so and then stopped. The pump carried on working for a good while then it stopped and now shows that it has a F11 fault. Any idea folks ?
Thanks in advance
Dbleman

 

[mickyg]

Turn the boiler temp right low(38c) and keep resetting it, probably just an air lock. Try and find any vent points on the system and bleed air what air you can get out, as well as from the pump vent point. Refreshing that the installer bothered to wire the pump to the boiler!

 

[dbleman]

Thanks I'll give it a go.

 

[dbleman]

Thanks. Worked like a treat, just had to reset it 3 times and now its working normally again.