Good afternoon,
Apologies if this has been asked/answered else ware - I have had a thorough search but just not quite found the answer!
I removed a radiator at the weekend - by shutting off the mains water, turning off each valve, removing the radiator and then draining each side of the system. I have not yet reattached a radiator, but have attached isolating valves at each end to be able to bleed them if necessary.
To cut a long story short once the water was turned back on the boiler will not fire and the pump is making a very weak noise. I am assuming I have an airlock.
So far I have checked the following;
1. All rads have filled up and have been bled (a lot of air came out)
2. The large cold tank in the loft is full
3. The smaller tank in the loft has plenty of water in it
4. All taps/showers etc are all working fine
There is a drain cock on the cold pipe entering the boiler which has water in, but difficult gauge the pressure, and further along this pipe before the pump is an AAV. I have removed the red cap but no air is escaping. It is however quite corroded, so I'm concerned it may be corroded shut if that is possible.
Should/could I loosen the AAV unit entirely with a spanner to allow the air to pass directly? I will obviously then get a plumber in to replace at a later date.
Any help would be greatly appreciated - luckily its a mild autumn so far!!
Thank you
Chris
Apologies if this has been asked/answered else ware - I have had a thorough search but just not quite found the answer!
I removed a radiator at the weekend - by shutting off the mains water, turning off each valve, removing the radiator and then draining each side of the system. I have not yet reattached a radiator, but have attached isolating valves at each end to be able to bleed them if necessary.
To cut a long story short once the water was turned back on the boiler will not fire and the pump is making a very weak noise. I am assuming I have an airlock.
So far I have checked the following;
1. All rads have filled up and have been bled (a lot of air came out)
2. The large cold tank in the loft is full
3. The smaller tank in the loft has plenty of water in it
4. All taps/showers etc are all working fine
There is a drain cock on the cold pipe entering the boiler which has water in, but difficult gauge the pressure, and further along this pipe before the pump is an AAV. I have removed the red cap but no air is escaping. It is however quite corroded, so I'm concerned it may be corroded shut if that is possible.
Should/could I loosen the AAV unit entirely with a spanner to allow the air to pass directly? I will obviously then get a plumber in to replace at a later date.
Any help would be greatly appreciated - luckily its a mild autumn so far!!
Thank you
Chris