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just done a retest of turning up the heat on the boiler, it only starts banging and you can hear the water bubling and boiling almost straight away when it is turned to CH only pos at 3pv, it sounds ok on all other settings

still got only front room rads open, HW & CH on at programer, Manual valve in mid pos, HW is calling and rads are hot, tried turning valve to CH pos, boiler shuts off.

Both rads in from room are now red hot, hotter than any of the others were. Just to confirm, valves were open all open prior to these tests except the one rad in front room which i only have open slightly as its under the window and plasma tv, cant have heat sorce under plasmas, i am moving this...

i've now had all the rads on full for at least an hour with my hand on one in the front room, this has eventually built up to about same temp as the rest though slowly, the other is still warm to hot with no air in. the temp has been fluctuating up and down all the time, i presume because the HW...

Opened all rads, HW & CH on at programmer, turned 3pv manually to CH and boiler shut of. i dont have access panel to side of boiler but i will make one this afternoon, where would be the best place to find the pipes going into the boiler, level with top of fire, middle or bottom. If TRVs are...

Got confused with changes to terminology, i assume MV = actuator Diverter =3 port valve, 3pv i've replaced both the actuator and the 3pv with no change. i cant see an arrow on the pump but someone has posted it is the right way round. i will have to come back to testing which pipe from the...

Hi Doitall, i dont know what MV stands for. Mike how do i find the diverter valve Upgrademe, i'm going to check now

Hi Dave i will try to answer all your questions but please bare in mind i am not a proffessional and am doing my best with observations 3, further to my earlier post: The pipe in photo 1 marked "22to28 to boiler" this pipe has 2 ends end 1 is connected to? Wrongly labled but does go to...

Hi Mike, just run your tests, removed actuator and turned valve manually to HW only, turned on HW & CH at programer and boiler starts, turned tank thermo down, boiler shuts of, turned thermo back to 60 deg and nothing happened, turned it up to 90 and 2 mins later boiler started up, turned it...

The LED light goes out when the boiler shuts down, the rads have never been right since i moved in, rads down staiars never got too hot and came onslightly in summer when turned off, things changed when i moved and replaced the HW tank and altered all the times on the programmer to try and save...

Wakefield and i want it sorting, flow or electrical, which is it, what tests does any one have to prove or dis prove either, theres been some talk of wires missing or in wrong place, 3 engineers have checked that everything is being called for and when it should be. Why does the boiler turn off...

The wire in the room thermostat to L3 is yellow not green my missis tells me, i am a bit colour blind, this i remeber the engineers saying is wired into the programmer

i have turned the gate valves on and off many times and have heard water rush through but i will check this, as for the pump this has been metioned before but i have been unable to order a seal kit from grundfoss. not sure what the de-air eject unit is, the little barrel perhaps, if so and is...

1&2,Picture 1 22to28 to boiler i have labled wrong, this is the 22 which goes under the floor to the rads from the bottom of the 3pv 3, spacer 4, correct a, this pipe tees, 22mm to rads, 15mm to rad in bathroom b&c, wronly labled, this is to rads and the pipe from the bottom of the tank is...

Hi all, i am following this post but its all been back and forth wether its electrical or flow which until i get some tests to do to rule out one or the other i'm stuck, some of your abreviations are not clear to me, some answers to the latest questions, Other side of back boiler is outside it...

i dont know if it has been changed pumping wise as it was done before i moved in

Hi Dan, the 28mm and 15mm pipes run down the conduit at the side of the chimney towards the side of the boiler, what happens there i dont know