Hello, been looking through your (very good) forums on this topic and I can't see one specific to this - bit of an odd one(?) - hoping you can help.
We have a Vaillant Turbomax 828e bolier - with the warmstart thingy. It was here when we moved in - we do have all the manuals.
Recently, after weeks of it playing up (more coming) I came home to find it would not fire up. The warmstart was flashing and it displayed S23 (I think - warmstart ignition).
This was a new problem and we called a plumber out.
The PCB board was replaced. This didn't seem to fix it.
I found a post on here (thank you!) that said to check the APS tubes - which he did and it seemed to fix it.
Now we have a new noise - a clicking noise I assume to be the diverter valve (which the plumber checked but did not replace). The boiler fires up fine and the heating works again.
But...
If the heating is on more than, say, 40, we struggle to get any hot water. This seems selective to different taps at different times. The water will go hot, then ice cold, then climb up but only reach comfortable levels - never hot enough to scald (sadly...)
I have turned the warmstart off but this doesn't seem to make any real difference.
If I turn the CH right down and reset the boiler the hot water seems to come back but, again, seems selective (luckily the shower seems to be the least affected).
For what it is worth I have put the bolier on Chimney Sweep mode and the hot water stills gets no higher than tepid. The CH works fine.
Thanks for listening! As I say, I have searched the forum and can't see anything that relates. Any help is appreciated. Moderators - please move this if necessary.
Thanks in advance,
George
We have a Vaillant Turbomax 828e bolier - with the warmstart thingy. It was here when we moved in - we do have all the manuals.
Recently, after weeks of it playing up (more coming) I came home to find it would not fire up. The warmstart was flashing and it displayed S23 (I think - warmstart ignition).
This was a new problem and we called a plumber out.
The PCB board was replaced. This didn't seem to fix it.
I found a post on here (thank you!) that said to check the APS tubes - which he did and it seemed to fix it.
Now we have a new noise - a clicking noise I assume to be the diverter valve (which the plumber checked but did not replace). The boiler fires up fine and the heating works again.
But...
If the heating is on more than, say, 40, we struggle to get any hot water. This seems selective to different taps at different times. The water will go hot, then ice cold, then climb up but only reach comfortable levels - never hot enough to scald (sadly...)
I have turned the warmstart off but this doesn't seem to make any real difference.
If I turn the CH right down and reset the boiler the hot water seems to come back but, again, seems selective (luckily the shower seems to be the least affected).
For what it is worth I have put the bolier on Chimney Sweep mode and the hot water stills gets no higher than tepid. The CH works fine.
Thanks for listening! As I say, I have searched the forum and can't see anything that relates. Any help is appreciated. Moderators - please move this if necessary.
Thanks in advance,
George