Woke up to a fault with our Baxi Solo 3 40 PF not running. Boiler ON light lit but nothing else, pump is running.
Did the reset and no change, left it off for 30min then switched back on. There was a loud chattering relay sound from the PCB and then it lit as normal. Shortly after I could hear an air lock type banging from the water pipes at the top of the boiler and then a minute or so later it switched off again, Boiler ON light remaining lit.
It will not then attempt to relight unless I leave it off for a 20mins. At which point it repeats the above,
As background, for the past few weeks there has also been a chattering relay type sound whenever the CH reaches the set temp.
I've removed the PCB for a visual inspection and can see an area of discolouration and soot around the ceramic 470K400 cap and resistors see attached pic. Obviously that's not a good sign, should I just replace the PCB?
Did the reset and no change, left it off for 30min then switched back on. There was a loud chattering relay sound from the PCB and then it lit as normal. Shortly after I could hear an air lock type banging from the water pipes at the top of the boiler and then a minute or so later it switched off again, Boiler ON light remaining lit.
It will not then attempt to relight unless I leave it off for a 20mins. At which point it repeats the above,
As background, for the past few weeks there has also been a chattering relay type sound whenever the CH reaches the set temp.
I've removed the PCB for a visual inspection and can see an area of discolouration and soot around the ceramic 470K400 cap and resistors see attached pic. Obviously that's not a good sign, should I just replace the PCB?