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Replaced whole aqua block as issue has been resolved. Does anyone know where to buy replacement flow restrictors for the mains inlet as other one broke and was stuck in the old fitting?

Okay i’ve witnessed the pin on the diverter valve pull up freely when central heating thermostat is called, and when you turn hot tap on eventually once it recognises demand it pushes down fine, any ideas?

Sorry forgot to say yes i did do this and it’s still the same issue.

I’ve changed the hall sensor on the aqua flow block, and this has not rectified the issue, is there’s any other parts in this brass block that could be an issue and requires a change, as if got the whole unit.

yes yes higher flow faster it comes on which makes me think it’s coming on quicker because the heat exchanger is getting colder quick, making the boiler fire up but not on the hall sensors accord, maybe but i’m not sure.

okay i’ve worked something out, taking the hall sensor that sits next to the impellor out but leaving it electrically connected still. The boiler still fires up after say a minute anyway, telling me that the boiler will fire up on its own accord regardless of the signal from the sensor. So this...

Yes to get continuous hot water and for it to kick in take over a minute, replaced turbine impellor still same issue, is it possible it’s the hall sensor? and not the whole unit, i’ve taken the hall sensor out of its slot and spun the old impellor really fast next to the hall sensor and nothing...

This one is just an 828E, does this incorporate it?

I’ve replaced the plastic turbine and have tried the water, it still has a delay in heating the hot water and it goes lukewarm and cold still, worth mentioning that one of the propellor wings looks broken ( don’t know where the piece is), and also it is quite brittle, I had high hope that was my...

No worries. Do you think it’s the whole aqua sensor given my voltage readings, or it’s just the plastic turbine impeller at the back?

i will change the impeller and go from there hopefully it sorts the issue.

where is this located?

Hello I have a Vaillant turboMAX Plus 828E and here are my issues: -When i call for hot water there will be a short burst of hot water then goes cold ( i assume what’s in the pipe). -Boiler flame does not kick in on demand, i’ve timed it before and it took about 1m 50s on average flow, and a...

i’m talking about isolating the smoke alarm not the circuit. why does the rcd need changing if it’s an ac?

Ah so i can take a feed from lighting jb and loop the alarms with 3 core, i did see something about smoke alarms being able to be “isolated” without turning off the lighting circuit however does this necessarily mean a switch? because they do technically get isolated when you untwist the smoke...

ac

Need to wire two mains interlinked smoke alarms. Split load rcd board however i believe smoke alarms have to be on their own not rcd protected especially away from rcd that covers socket outlets. But i was wondering if i could take a feed from lighting circuit that is protected by an rcd to my...

if you have 25 ohms the mcb wouldn’t trip anyways it’s too high, what do you have 25 ohms between?

can’t be leakage as it trips after a few days when nothing is on and no leakage to earth that is bypassing the rcd to the neutral via a short as IR tests come back good

RCD can’t be ditched but there probably will an rcd in cu in the future:LOL:. this is really bizarre, but what i will do is L+N-E with everything connected, even though i don’t think it can be the downlighters as no earth present.