add sentinel x100 and x200 to your system,leave for 2 weeks,run as normal.
if still banging add 2 liters of x400 and wait for it to do its work.
www.sentinel-solutions.net
bayonet needs to be removed and plugged with a half inch iron plug.
bayonet is a temporary disconnection point only.
corgi or whatever corgi is now called.job.
your boiler is to old and unreliable to fit plastic pipes to,the temperature will be to hot and burst plastic.
scrap your old pile of pooh.now.
your boiler is nearly 20 years old.
the authors concern is the fact that steam (plume)enters their property through an openable window.
i am also concerned that an excessive amount of condense has been directed on to the exterior of their property,this could lead to deteriation of wall surface,window and rubber window seals as...
never had air presure switch faults on these nice boilers.
fan to cycle on and off with no ignition is usually the pcb.
had lots of corroded flues with these boilers but potterton bought out a remedial flue kit which makes it an easy repair.thanky you potterton.
good photo.
looks like an ideal boiler,i have checked the manufactures instructions for the most recent boilers.ie isar.icos and esprit.
in the flueing section ideal state.
IMPORTANT it is absolutely essentail to ensure in practice that products of combustion discharging from the terminal...
newer myson pumps state cp53 or cp63
53=5m
63=6m
or tell us about your system.ie boiler name model, number of rads,how many floors,size of pipework around pump,
putting a 6m pump into a smaller system is not much of a problem as speed can be slowed down.
other way around can cauce...
first thing to do is to close that window and seal the edges with tape.
second,talk to your neighbour if you can but always keep neighbour informed.keep records.ask neighbour the name of there boiler or
post a photo of the flue a clear one so we can identify boiler and see if a plume managent...