Temperature pressure relief valve dripping

Lulu58

Thanks for the reassurance that it can't be the valves etc causing the boiler to switch off, ThisIsWeird.
Yes, it's still under warranty.
I've wiggled the cable and it seems ok. 
The first time the boiler died it took around 30 mins for the two T's to disappear. I must remember to tell the WB engineer that.
Edit: The WB engineer has just arrived and said all he can do is check the fuse, electrics etc. As everything has been working fine since the last time it died I'm not sure he'll find anything.

ThisIsWeird

It's an interesting one - I'd love to know what it is. Please keep us posted

Lulu58

ThisIsWeird said:

It's an interesting one - I'd love to know what it is. Please keep us posted

The WB engineer ran the boiler through various tests and found nothing. Everything is working as it should.
There were no historical faults showing which ties in with what I saw the first time it died - there was no fault code, it just died.
He said if the motor/fan type noise was a fault it would have kept happening, or the boiler would have reported a fault.
He thought it could be something like a drop in power in our area which would affect the boiler (as there definitely wasn't a power cut).
I mentioned to him that the on/off button didn't work until about the 5th try both times when the boiler died. He checked it and it didn't work for him so he ended up replacing he button and the PCB. He thought the switch may have been a bit loose.
I still don't understand why everything kicked off after the boiler died, ie the pressure valve dripping through the tundish, etc.
Hopefully once we have the work completed on the valves at the weekend everything will be back to normal.  

ThisIsWeird

Shame he couldn't ID the issue, but no great surprise. I'm also not surprised they couldn't find a fault code, as the issue was clearly a loss of power, just as if there was a power cut, or someone turned off the isolator in order to carry out work - these wouldn't register as being 'faults'.
Well done for mentioning the switch, and great he replaced it and the PCB. It could well have been as simple as a faulty switch, and between it and the PCB I'd say the chances are very good it's now been sorted!
The noise when it restarts is most likely normal - it's what it does for typically 15 mins, but I guess could be more - especially if the switch or PCB was continuing to misbehave.
I can see no connection between your two issues. I suspect most likely a pure coincidence.

Lulu58

ThisIsWeird said:

Shame he couldn't ID the issue, but no great surprise. I'm also not surprised they couldn't find a fault code, as the issue was clearly a loss of power, just as if there was a power cut, or someone turned off the isolator in order to carry out work - these wouldn't register as being 'faults'.
Well done for mentioning the switch, and great he replaced it and the PCB. It could well have been as simple as a faulty switch, and between it and the PCB I'd say the chances are very good it's now been sorted!
The noise when it restarts is most likely normal - it's what it does for typically 15 mins, but I guess could be more - especially if the switch or PCB was continuing to misbehave.
I can see no connection between your two issues. I suspect most likely a pure coincidence.

Thanks, ThisIsWeird. As you say, hopefully the boiler side of things is now resolved.
Just got to have the valves etc replaced on the cylinder plumbing at the weekend and we can put it all behind us.  It's been such a worry with the cold weather.
Thanks for all your posts and the helpful information you've provided. I really appreciate it. 

ThisIsWeird

Lulu58 said:

ThisIsWeird said:

Shame he couldn't ID the issue, but no great surprise. I'm also not surprised they couldn't find a fault code, as the issue was clearly a loss of power, just as if there was a power cut, or someone turned off the isolator in order to carry out work - these wouldn't register as being 'faults'.
Well done for mentioning the switch, and great he replaced it and the PCB. It could well have been as simple as a faulty switch, and between it and the PCB I'd say the chances are very good it's now been sorted!
The noise when it restarts is most likely normal - it's what it does for typically 15 mins, but I guess could be more - especially if the switch or PCB was continuing to misbehave.
I can see no connection between your two issues. I suspect most likely a pure coincidence.

Thanks, ThisIsWeird. As you say, hopefully the boiler side of things is now resolved.
Just got to have the valves etc replaced on the cylinder plumbing at the weekend and we can put it all behind us.  It's been such a worry with the cold weather.
Thanks for all your posts and the helpful information you've provided. I really appreciate it. 

You are very welcome.

You should be sorted now, so have a Merry Warm Christmas :-)