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yep could be a faulty TRV sensor head or as mentioned above the pressure pin could be stuck. Sometimes you can unscrew the heads off TRVs or sometimes there may be a small screw that needs to be undone first.

Just a few quick queries regarding a Part 3 (plastic) float valve fitted in my WC cistern (low pressure) After re-filling, it is quite slow to shut off the water 100%. What it does is the dribble gets slower and the stream of water thinner, then water drips a bit before the diaphragm closes...

thanks i will try that. i have compression service valves that i suppose i could use as a cap (when turned off)!! :)

Hi there Is there any way of testing a soldered joint/(s) for leaks when practising soldering? I don't have a pressure tester (Hilmor/Rothernberger ones are well over £100)!! :( - any other ways to test under pressure? Thanks for any tips... :)

oh ok, so when the radiator hangs on the brackets, these lugs just clip on somewhere?..

I hope this does not sound a little stupid-but I need to ask a simple question as it is bugging me: Radiators come with brackets (usually all do) - but what are lugs and what are they for. Do all radiators come with lugs or just certain ones?

how do I really know if my pump (for CH and HW-fully pumped system) is worn and I need to replace it? are there any sure signs of this as I don't want to chang it if it's not really done.

Hi guys (and gals)! Just a couple of quick q's: An Automatic Air Vent must be placed at the highest point of the system (eg like a manual air vent-on the primary flow to the HW Cylinder) - is this true or can it be placed somewhere else in the system? Also does every boiler have a PCB...

ok. just tried mine with prog off for both HTG and HW and it was resistance and then after i returned it it was floppy!

ok useful to know there. out of interest if your HTG and HW are both off (at the programmer) would the lever be floppy?

cheers seco services i think i shall buy a new actuator and change it tomorrow when i am more relaxed and have plenty of time. as this is the problem. i was confused as the manual lever would not spring back as someone mentioned earlier and i don't know what that actually 100% means? what...

tried to do it but my cylinder thermostat dial is very stiff and when i put a screwdriver in it to turn it it split a bit of the plastic dial and would not budge! so i do not want to damage it any further and brak that too! what else can i do...

going to try it ... if it works then the motor is ok i guess. if not then motor is faulty. what about the lever though - why does it get floppy? what does that mean?

seco services - but my problem is with the heating and not the hot water liverpoolboy - so if the spindle does not spring back i need a new diverter valve? this is confusing now!lol

yes there is power white and grey (just tested again with HTG on). But no HTG still.

he spring inside must hae gone as it does not pull back. does this mean the whole valve is broken?

seco services sorry i was wrong - i meant i don't get (V) to orange.

i have just pushed the lever across and it satys where it is - what does that mean?

i read that grey and white (and also orange now you mentioned it) were all for HTG only. (unless than means HTG only after H/W and HTG and H/W is satisified)? Yes there are 230 (V) to orange too. So is my motor broken? need changing?

ok guys i think i am doing this correctly but i would like some reassurance if possible from you experts i always have my CH on in the momrings from 4-6 (when i get up) just to take the chill off. it hasn't been coming on these last 3/4 days even though i have programmed it in. my hot...