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prv can be taken into a by law kit with pump can it not ?

just means pump weak and with helping hand starts spinning

ooh plenty of sparkys do it too

does the thermister double as flow switch ?

has anybody told this guy to check flow switch!! first.if you have 1 green light signal from timer there just pump needs proving for fan to start

just follow the wiring diagram supplied with mid position for y plan excluding the pump in the wiring centre . the boiler does this for you. would be better if you went and bought some 5 core cable n much tidyer. and if u used 3 core for cylinder stat and have used earth wire make sure u...

well first thing u do is repressure boiler to 1.5 bar then check the stupidly thin plug for the diplay board has not fallen off

pin should close the micro switch if not it is a weak diaphram

check filter on cold inlet on boiler could be starving its self then vacuming in upstairs pipes !!.hard one with out seeing it

check stopcock open fully may just be a lack of pressure !!

does the fan start up or not? if not the hall effect will never register.check fan is getting required voltage correctly ie phase and neutral if so change fan

please dont give in to this customer fight your corner if you warned him of this scenario you are fine.some customers are scary and you need to be firm or they try it with everyone.THEY ARE NOT ALWAYS RIGHT!!

nope corgiman he says he has good hot flow at kitchen tap!!

does the valve have none return inserts fitted ? could be fitted wrongly.and shower could be wrongly labelled!!

if you have hot good flow rate at one tap on a combi it is not the boiler.check rest of house hot pipe work for blockage.isolate the cold at boiler and back fill from a cold tap to a hot tap might disturb the blockage.of course might just move it elsewher too!!

is your hot water system on permantly.if so sounds like some rads are being used as a heat sink.is it a 4 pipe boiler or three

sounds like you have air in a hot water pipe somewhere or a dead leg of air that is compressing .when you turn the cold tap on you are reducing the pressure at the boiler allowing the water to back flow and fire the boiler for a short while

.this is a over heating issue not thermistor i think. think plate exchanger blocked and boiler getting to hot the thermistor is just doing its job correctly.does it reset after 5 min?

does it reset everytime

and what is this error code?