I have a worcester 24i junior boiler and have recently noticed that when the heating is turned on, the boiler lights and then about 15 seconds later the boiler seems to pop and bang for about 1 minute, After this the heating runs normally and no further banging.
The pump is rotating, i have checked by taking the cap off. I have checked the expansion tank and its at the right pressure.
It seems like there's air trapper in the system but i cannot get it out.
I drained the whole system and the expansion tank. I then re filled it all and the automatic air vent was open as i heard air escaping but i cannot find the automatic air vent!
What else can i do or does anyine know the answer!?
The pump is rotating, i have checked by taking the cap off. I have checked the expansion tank and its at the right pressure.
It seems like there's air trapper in the system but i cannot get it out.
I drained the whole system and the expansion tank. I then re filled it all and the automatic air vent was open as i heard air escaping but i cannot find the automatic air vent!
What else can i do or does anyine know the answer!?