Recent content by wbjimmy1

The honest answer is I’m not sure. However if the grey wires are providing the live feed my wiring diagram suggests the valves are not being powered directly from the fused spur ( as recommended by Honeywell) but indirectly through either the programmer or the thermostat. If so Is there any...

Thanks. I agree but I don’t understand why all the on-line guidance shows a permanent live to the valves whilst in my setup they seem to rely on a switched live from the programmer/timer? Whilst it appears to work would there be any advantage in rewiring it (in the conventional way) before...

I’ve recently had my system boiler replaced and had my existing Y plan converted to an S plan ( I.e. 1x3 port valve replaced with 2x2 port valves). Everything appears to work OK but I have now decided to replace my wired room thermostat with a wireless one ( I intend to retain my existing...

Thanks MNW67 but do you know if the BDR91 receiver can use the existing 3 core wire connecting my DT90E? Would I need to adjust the wiring within the control box?

I also want to replace my hall-mounted DT90E with a wireless room thermostat ( possibly a DT92E) which I can move between the kitchen and the lounge. In my case I have a three core wire running between the upstairs programmer ( a Drayton Lifestyle) and the room stat but the third wire (...

Thanks to all who have offered advice. I have now found a local plumber who will service my existing boiler so I will seek his opinion on its condition and potential serviceable life. From all the comments I’ve received it seems the decision between replacing it (and when) with either another...

I must admit I too have doubts about the need to replace a 16yr old boiler which has been annually serviced and had fresh CH protector added every 2yrs. Apart from a failed expansion vessel it has never let me down and as the last of the non-condensing type it is almost as efficient as the...

Understood. Thanks for advice. As my hot water pressure is OK and Im not planning on a loft conversion anytime soon so I think I’ll stick with my loft tank and vented cylinder and save the additional expense of upgrading to an unvented one. As for the boiler, it seems there is little to gain in...

Yes. I’ve ruled out a combi because we have 4 bedrooms and have more than 1 bathroom. Everything I have read suggests a main advantage of system boilers is you don’t need a cold water tank in the loft -but I still have one hence the question why I need a system boiler - or could I get rid the...

I am considering replacing my existing Vaillant thermocompact (non-condensing) system boiler principally because it is now 16 yr old. It’s currently part of an indirect, unvented, Y plan set- up comprising a vented indirect hot water cylinder ( in the airing cupboard) and a cold water tank (...

Thanks “oldbuffer” and “Ianmcd”. The ABV alignment is OK and I’ve bled the valve. No change. Because the noise disappears when I turn up the room thermostat or close the lower gate valve from the cylinder I’m beginning to think it is either (a) a faulty gate valve (b) a sticking ball in the...

Is anyone able to provide a response to my earlier post which has gone unanswered since Feb?

Following my earlier text is anyone able to suggest the most likely cause of my CH noise problem or what other tests I can do to narrow down the possible culprit?

OK this is what happens. Programmer set at HW off, CH on, Room thermo not calling for heat and No tension on 3 way valve. When the programmer switches on the HW, the 3 way valve is tensioned and the vibration starts. The vibration can be stopped if I turn up the room thermo and it calls for...

Thanks Meldrewsmate. I’ll try retesting as you suggest and report outcome. I can’t recall the make of the replacement Synchron motor ( I didn’t replace the whole head) but I do have a spare genuine Honeywell 3 way valve (complete unit) if I need to replace it or just the detachable head.