Engineer arrived and cleaned boiler properly, measured flue levels and found they were only slightly out and corrected with a small adjustment. Just goes to show, not all engineers are created equal.
I was holding the ladder at the time, so was unable to see the actual reading but was certain that is right. The engineer did seem a little confused by this figure so I hope he knows what he is doing.
Hi, I have a question in regards to a boiler service that on checking the CO/CO2 ratios found that they were in the region of 4.5 !!! This was after the boiler was cleaned inside.
It was mentioned that the fan could be the problem.
The boiler in question is a Potterton Suprima 80HE, I...