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is there 2 buttons on the receiver with a green and red light?

make/model of stat would be handy :D

eh, i posted me last comment ages ago :? also for future ref, id post a question on here before fiddling with things as it could end up costing ya a lot more :lol:

lol, before replacing check you have 230/240 v ac on the brown and grey wires

prob wont be the pump.. wen ya turn the ch on using the wireless stat, the receiver turns green, can ya hear the receiver click? also check if the ch valve has moved to the b position

yep, its a pump isolation valve.. bg went through a stint of fitting these as they are cheaper. if i was you i wouldn't use it as they normally leak and normally carry on leaking.. what are ya trying to do?

no probs, could of pressed the thanks button :lol:

don't do anything! just leave it, if the sys pressure rise's to 3bar the plate has gone, if it doesn't don't worry.. ya don't have to drain any water it wont effect the safety or operation of the boiler. IF it does turn out the plate has gone, bg do a fixed price repair and it would be £189...

it could take weeks! the pressure rising whilst the sys is running is just the water expanding with the heat which is normal

its common for the plate heat exchangers on these to split internally and allow the mains pressure to pressurize the ch circuit. if this is the case your sys pressure will continue to rise up to 3bar. if it doesn't don't worry

what pressure is it reading? ya only have to worry if its getting up to 3bar

is it rising wen in operation then drops down? or is it rising and staying there? if it is it will prob be the plate heat exchanger

why is it? :?

disconector wouldn't cost much n ya could fit it in 10min

could of been air trapped in the boiler, did the pump sound different? how come ya didn't get the engineer back to sort it?

norm the disconector, n id be more worried if ya ant had it serviced for a while and theres a big pile of melted plastic because the upgraded graphite seal hasn't been fitted :mrgreen:

shouldnt be a issue imo, if ya worried buy a surestop :wink: http://www.ebay.co.uk/itm/Surestop-Remote-15mm-Water-Switch-/270802932484?pt=UK_Home_Garden_Hearing_Cooling_Air&hash=item3f0d1cd304

ya can buy extraction tools for screws and bolts - have ya got a pic?

id go for a fixed price repair from either the manufacturer or bg, if its the pcb ya looking over £200 (which it sound like to me)

why do ya want to change it? remove the L N E connections from the source, 1 is ya switch live from ya timer to ya room stat, 3 is ya switch live from ya stat to ya boiler/valve