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    Worcester 24i combi question

    Does anyone know if the older (non-condensing) Worcester 24i had a diverter valve?
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    Push button toilet !

    Sorry another quickie - got a toilet leaking water into pan slowly but continous - it's a push button cistern - can I put a new valve in (Wirquin one looks ok) - as not sure what original valve is....? Think it's 1 1/2" outlet but will wirquin drop valve be ok ?
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    Common boiler faults guide

    Hi all is there any guide/booklet you can buy that indicates common faults on particular boilers? For example, common faults on Potterton Surpimas, etc etc?
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    combi boiler hot water question.....

    just a quickie - can a faulty pcb cause the hot water to run cold and still allow the heating to work ok? if so, how? :oops:
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    Thermistor change question

    Hi I have a faulty thermistor on my boiler and am wanting to replace it. It;s a Worcester Junior 28i combi Basically I wondered if there's a universal thermistor I could order / get from somehwere, or would I need the exact model number for this boiler? Secondly, I'm wary about...
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    Gas valve question

    Hi On a gas valve (in a boiler) the older type had standard, diaphragm type (possibly could be range-rated) - but a lot of newer ones have modulating gas valves - where more or less current to the modulating solenoid opens/closes the gas valve more or less, as required.... basic question...
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    New hot water cylinder question - hemp or ptfe/compound.....

    FItting a new hot eater cylinder..... woudl you use hemp or ptfe tape and or jointing compound? I know hemp is against water regs though :( - how many turns of ptfe tape is going to be water tight? I usualyl use hawk white (normal not potable, so again against water regs) - anyoen used lsx...
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    New type ZPG Gas Valves question

    These new A RATED condensing boilers usually use Zero Pressure Governor gas valves now, so how do you tell the difference when looking at one, if it's a ZPG or a standard type? I ask as I am interested and wondered if there was an easy way to identify? My boiler ha sthe traditional...
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    PCB faults - the signs...

    In general what are the signs of a faulty PCB in a boiler? Is there anything obvious? I have been reading various posts on this site out of interest and some say the board is the cause of a fault, eg/ Hot water fault, ignition fault, etc and just wondered what the signs / tests were to prove...
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    Worcester 28i Junior Combi - Hot Water fault

    Hi Our boiler a 28i junior (Worcester) has a hot water problem. The water runs hot after a few seconds as normal and then all of a sudden, after approx. 40 seconds runs cold for about a minute approx. and then gets hot again. After serahcing the forum I believe it to be a heat excahnger...
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    Programmer swap, wiring different, change backplate ?

    I'm replacing my old programmer Gloworm with a new one (Drayton) and the wiring is to be different (different terminals used on the backplate). Is it possible to just re-arrange the wires for the new programmer on the backplate or will I need to unscrew the old backplate and fit the new one...
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    Explosive Ignition

    Can someone please explain exactly what causes Explosive Ignition, ie in a gas boiler, and what eactly it means? I am curious and am trying to find out (but searching the net or this site hasn't helped). I am guessing it is when a burner fires up loudly, due to possibly too high gas pressure...
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    28mm zone valve, for gravity hot water. Extra wire?

    Why does a 28mm 2 port zone valve (for gravity h/w) require 6 wires (an extra wire-the WHITE WIRE). What purpose does it serve.... anyone know?..
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    Shifting trapped air from CH after re-fill?

    Hi Can some please offer me some advice: I am re-filling my CH system today after a drain down but it seems to be taking ages to re-fill. Upstairs are the ones - downstairs seems ok but upstairs I have vented rads and hear hissing but no water yet, one rad just a few splutters. Is this...
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    1 Rad requires venting every 6 weeks!

    Minor prob but as i'm online would like to ask your expert opinions if i may?: one of my bedrooms (upsatirs) requires venting every 6 weeks or so.. it is the only one that requires this. Is this common? The system is open vented, the static head of the pump if good as is the positioning...
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    Gravity HW questions/regulations?

    Can anyone help me with a few questions regarding gravity fed hot water please? With a C-PLAN (gravity hot water & fully pumped heating) - is a 4 tapping boiler required or can a standard 2 tapping boiler be used? Obviously there will be an anti gravity valve installed somewhere after...
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    Airlock problem

    Have got a flipping airlock in my hot water pipework (put new taps in kitchen-mixer type an hour ago) and now no water from the hot side - only splutters and then stops) - i know this is down to bad system design but is this a good way to get rid of it (before i do it i'd like your advice if...
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    Clamp on / Probe thermometer recommendations ...?

    Does anyone have any recommendations for a good probe thermometer (to test water temps and rad surface temperatures)? and clamp on thermomemeters - to test flow and return pipes from a boiler/to rads?Any links/recommendations would be great.
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    Unvented cylinder stat wiring query

    Query: is an unvented hot water cylinder stat and thermal cut out pre-wired? Basically is the cyl stat wired up normall as per a normal 2 port valve (2 wires) and the thermal (overheat) cut out stat pre wired to the normal stat or are there different wires for this overheat stat also?
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    Gainign access to seals in shower mixer

    Am trying to get the disc / name plate off the front of my shower mixer (round type), to get to the valve, as the seals have worn - water is dripping out underneath the front. But don't want to damage the face of it. ANy tips how I can remove this easily; i have tried a thin screwdriver but...
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