I complained to Plusent that my phone/boardband was not working on a Sunday morning. I was offered an engineer visit the next morning. The fault was found and corrected.
It took me 48 hours to find out why my oil fired boiler would not keep working and that was because I just happend to view a youtube video where someone mentioned that the solenoid which controls the flow from the oil pump can become open circuit when it gets warm, but the circuit closes again when it cools down, which makes fault find by measuring the resistance difficult!
Michael Chare