BAXI Solo HE/Tribune HE No hot water. HELP, please.

[PaulLlewellyn]

Hi,

Any help with this would be great. Please.



Once the system is switched on the Baxi ignites and all is running as normal, the two green lights on. The radiators heat and within 10 minutes they are hot. The Baxi then shuts off, lights go out.

No hot water at the taps.

Here is a marked pic of the tribune showing which parts get hot.



After 5 minutes or so the boiler will kick in again and last for another 10 minutes and then the process repeats. Each time the Two point valve(?), which I have marked as 1 on the left of the pic, makes a bit of a racket to get going. The same unit on the right is silent. It is all cold on that side of things.

Some more pics of the system in case they might help.



The immersion works fine.

Any guidance would be most appreciated.

Thanks.

 

[stevetheplumber]

you need a g3 engineer to look at it sounds like the motorised valve has failed

 

[townfanjon]

Hot water actuator pal .

 

[gassafe]

Those sunvic 2 ports are awful

 

[PaulLlewellyn]

Thanks.

Might this be s traight swap out of the whole unit?

I'm more than happy and iwlling to bring in an engineer but if it is something direct I'd rather do that than repeat my last experience of paying a call out fee to find that the solution then was simply to raise the water pressure.

 

[joni os]

Using red wheel fully open the silent 2 port valve, lower right picture, with programme and cylinder stat calling for hot water. If having manually opened, closed and opened this valve, boiler does not fire, check you have voltage in brown conductor. If voltage present MV or head needs replacing. Consider Honeywell 4043 equivalent.

 

[PaulLlewellyn]

So, i turned the red dial on the bottom unit so that it was open. It then quite silently turned. The pipes warmed.
I tried the taps to find very hot water. Hotter than I have become used to from recently using the immersion.
The other unit on the top left was also turning very loudly. CHUGGING! Then after a few minutes both stopped.
Then cycle repeated.
Might it then be that the top left actuator needs replacing?

 

[ShaunCorbs]

best bet is to get a g3 heating eng/plumber (unvented) to come and change the parts and maybe give it a once over while hes there

 

[joni os]

As above, you've confirmed problem. replace both 2 port valves with Honeywell.

 

[townfanjon]

Yep I am with joni, bin the sunvics and fit some honeywells, cheaper in the long run , not a diy job Paul , where are you based ? Sombody on here may be local .