Or indeed have any problems with your boiler at all!
Recently had a fault in my boiler which resulted in HW, but no CH.
On inspection the controll PCB was found to be faulty. Basically, the environment in which the PCBs are in - i.e. constantly above 30/40/50 deg C is not a great one for solder on PCBs. Hence they are prone to develop 'dry joints' - which can be seen be a hairline crack in the solder, which is used to make the electronic connection between the components and the circuit (plus it also holds the device in!).
My fault was such that there was a dry joint (plus a complete burn-out!) between the switch & the relay (the big box thing on the board marked Omron). Hence, when the electronic 'ON' signal was being fired, this signal was not reaching the boiler.
My advice would be to always check all the boards for such problems before paying up loads to have them 'inspected' and then replaced. When a simple repair would do.
How can I qualify this? I run a small electronics company and was glad that I was able to apply some knowledge to this!
Recently had a fault in my boiler which resulted in HW, but no CH.
On inspection the controll PCB was found to be faulty. Basically, the environment in which the PCBs are in - i.e. constantly above 30/40/50 deg C is not a great one for solder on PCBs. Hence they are prone to develop 'dry joints' - which can be seen be a hairline crack in the solder, which is used to make the electronic connection between the components and the circuit (plus it also holds the device in!).
My fault was such that there was a dry joint (plus a complete burn-out!) between the switch & the relay (the big box thing on the board marked Omron). Hence, when the electronic 'ON' signal was being fired, this signal was not reaching the boiler.
My advice would be to always check all the boards for such problems before paying up loads to have them 'inspected' and then replaced. When a simple repair would do.
How can I qualify this? I run a small electronics company and was glad that I was able to apply some knowledge to this!