Hi all - wonder if you could shed some light on what is going on with my boiler. I have a Maxol Microturbo feeding a Boilermate II.
Earlier in the week I had to drain down the entire system to replace a isolation valve on a towel radiator that was leaking. The drain down was fine, I checked the header tank was emptying as I know the cold feed gets blocked on the Boilermate II, this emptied fine however, and the water coming out was absolutely clear, hopefully down the the two bottles of inhibitor I put in the last time it was drained down!
After filling back up (with inhibitor), everything was fine until about 24 hours after when the boiler started kettling. It is not really that loud but it's audible, and it is causing water to come out of the overflow outside, only when the boiler is kettling. I've been bleeding rads and the pumps for a few days now and there is no air anywhere from what I can tell. I also put some x200 in with the inhibitor to see if that helps, but it hasn't so far.
I'm assuming the pump or the heat exchanger? Even though the water was clear there was some sediment on the top of the header tank that may have been pulled into the system which could be causing it?
Also, can someone explain, if there is a reasonable amount of water coming out of the overflow, and the water in the header tank is stopping the ball cock dropping to allow water in, how is the header tank staying at the same level, where is the water coming from? Or is it likely to be air (even though as I said there is no air in the rads) replacing the water?
Sorry for the long post but thought I'd try and get as much detail in as possible. Any ideas welcome!
Earlier in the week I had to drain down the entire system to replace a isolation valve on a towel radiator that was leaking. The drain down was fine, I checked the header tank was emptying as I know the cold feed gets blocked on the Boilermate II, this emptied fine however, and the water coming out was absolutely clear, hopefully down the the two bottles of inhibitor I put in the last time it was drained down!
After filling back up (with inhibitor), everything was fine until about 24 hours after when the boiler started kettling. It is not really that loud but it's audible, and it is causing water to come out of the overflow outside, only when the boiler is kettling. I've been bleeding rads and the pumps for a few days now and there is no air anywhere from what I can tell. I also put some x200 in with the inhibitor to see if that helps, but it hasn't so far.
I'm assuming the pump or the heat exchanger? Even though the water was clear there was some sediment on the top of the header tank that may have been pulled into the system which could be causing it?
Also, can someone explain, if there is a reasonable amount of water coming out of the overflow, and the water in the header tank is stopping the ball cock dropping to allow water in, how is the header tank staying at the same level, where is the water coming from? Or is it likely to be air (even though as I said there is no air in the rads) replacing the water?
Sorry for the long post but thought I'd try and get as much detail in as possible. Any ideas welcome!
