On this picture. You can clearly see a very dirty boiler condensate trap siphon . If you’re doubting what this mean , then call me and I will explain more.
The dangers of a clogged up boiler trap are :
Backflow of debris to main heat exchanger
Cause damage to the ignition or spark electrode
Cause damage to flame sensing electrode
Inefficient gas and electricity boiler consumption
We aim to avoid any of these happening to your Heating system by servicing you Combi boiler or system boiler at least once every 12 months.