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I have halstead finest boiler and recently what has started happening is the safty lockout light has started coming on when hot water is requested. The interesting thing is that the safty lockout light only seems to come on when hot water is requested from up stairs bathroom, normal request for...

Diaphragm are new, but I recheck. As you say thinks it's crap in the diverted value, I'll double check and see what happens. Cheers.

It's the primary flow switch, which does not appear to be extending (it the ones with 2 violet wires attached to it) definitely not the domestic hot water flow switch.

Chaps, Just done a Small service on my boiler, heat exchange descaling and replace hot water and central heating diaphram and also replace AAV - now safety lockout light coming on when I power up boiler. The problem appears to be with central heating probe switch not wanting extend when in...

Picasso - Your disclaimer is clearly understood, sorry to put you on the spot there. The Pressure is 1.5 bars and appears to be constant, with regards to air in the boiler, yes there could possibly be, it did once make a lot of noise similar to having air present. If Automatic Air Value...

Thanks for the feed back Picasso - Is it safe to use the boiler in the short term while the "diverter value is sticking". Is there anything I can do to pin point exactly where the issue is and if diverter value is sticking - what is the best way to un-stick it? red is permanently on until...

Good Morning Chaps, I have Halstead Finest boiler and the safty lockout light has started to come on, disconnecting the power supply appear to get rid of the problem. However when I put the hot water on, the radiator also start to heat up also, on checking the micro-switch for Primary...

ladscape

Plastic pipe

Thanks for the reply - I thought it was PEX, more than likely I am wrong. I thought that it was PVC tape wrapped around copper, I haven't dismantled it as I have no experience of working with plastic pipe. I didn't want to take it a part until I knew how it hung together cause I may make it...

Chaps - I have a PEX plastic pipe connecting to copper, PEX connectors appears to have developed a crack. Question is how do you you take the old connectors off and replace it , what special equipment do I need. Picture of the PEX connector is attached with appropraite leak - any advise...

PEX pipe connector

PEX pipe connector

The issue was indeed the micro switch, it was fitted correctly however the micro switch was not working correctly. Replace the micro switch and everything worked correctly.

I have halstead finest boiler, have just replaced the flow manifold/diverter value as it was leaking water. Now DHW will only come on when I have CH on. When I turn the hot water tap on, boiler is not kicking in, in the past I would hear a click indicating the micro switch had been activated...

Chris/Agile , Apologies for not getting back to you sooner, however it took me a little while to build enough confidence to actually get around to do it. The upshot is that I took your advise and took out the DHWHE and did the descaling - there was lots and lots of black stuff in it and not...

Many thanks for your advise on this Chris. I assume that DHW HE is the bit directly under the diverter ? Is the CH HE the same as the DHW HE and divertor switches the water flow from the CH to HW, what I am trying to say is that if the CH is very hot implying that the water in it is very hot...

My typing skills are as good as my plumbing skills ........ apologises. Yes, it should say "recently". I replaced the divertor value because it was leaking water from the central heating systems and hence loss in pressure and so on....... I actually had the corgi boiler repair man have a look...

Hi, I have Halstead Finest Boiler and certainly replaced a leaking divertor value on it and Automatic Air Vent, unfortunately the hot water isn\\\'t very hot now and then every couple minutes or so trips out - centeral heating is fine. I have checked the diephram and this also fine. Any advise...