J
johnpaul.gordon
Hello,
I know this topic has been done to death but I have tried almost everything I can find online and I would welcome any advice on the problem with my radiator before I call in the plumber.
Right so my radiators all work from a Worcester Combi boiler (5 years old) sealed system, there is one towel radiator (non TRV) upstairs that does not heat at all, it definitely used to very well.
Every other radiator is piping hot very quickly and even the tail pipe to the radiator is very hot, so it is just this isolated point.
Already tried:
Bleeding the radiator
Balancing the System (adjusting TRV etc)
Draining the system and replacing the valves on both sides
Removed the radiator and hosed it out from all ends,it was filthy and full of sludge
Bleeding the system after refill.
I have added in some Fernox F3 and will let it run through for a week but I am concious that if there is a partial blockage it might not be that effective as it wont be able to get to the problem point, but there is no harm in cleaning anyway.
Although the radiator was full of sludge it still does not heat now that it is cleaned out, the tail pipe and inflow valve are piping hot but the radiator itself is not heating one bit.
There is definitely some water passing through the inflow valve as I can hear it and I have demonstrated it by shutting the outflow valve and bleeding the radiator with the inflow open and it continues to flow with pressure, which it did not do prior to me cleaning it, but I am not sure it is as free flowing as the outflow and definitely not as much as the other towel radiators on the system, you can hear a real rush of water when their valves are adjusted, but the fact that I can bleed it with pressure (with outflow closed) suggests there should be enough flow for hot water to rise through the inflow valve surely, or is there just not enough pressure as this is the tallest radiator on the 1st floor?
When the system was drained I had the radiator off and the inflow and outflow pipe were exposed I did try pour some water into them to see if the water went down the pipes, the outflow took the water away no problems, but the inflow just filled up with water and did not drop at all, is there something on the T junction that only allows water one way into the inflow that possibly explains that??
Thoughts? Any advice appreciated.
Not experienced in plumbing but I feel there is potentially a blockage near the inflow valve, but is it normal for enough water to get through to heat the tail pipe but not the bottom or top or radiator?
Cheers
John
I know this topic has been done to death but I have tried almost everything I can find online and I would welcome any advice on the problem with my radiator before I call in the plumber.
Right so my radiators all work from a Worcester Combi boiler (5 years old) sealed system, there is one towel radiator (non TRV) upstairs that does not heat at all, it definitely used to very well.
Every other radiator is piping hot very quickly and even the tail pipe to the radiator is very hot, so it is just this isolated point.
Already tried:
Bleeding the radiator
Balancing the System (adjusting TRV etc)
Draining the system and replacing the valves on both sides
Removed the radiator and hosed it out from all ends,it was filthy and full of sludge
Bleeding the system after refill.
I have added in some Fernox F3 and will let it run through for a week but I am concious that if there is a partial blockage it might not be that effective as it wont be able to get to the problem point, but there is no harm in cleaning anyway.
Although the radiator was full of sludge it still does not heat now that it is cleaned out, the tail pipe and inflow valve are piping hot but the radiator itself is not heating one bit.
There is definitely some water passing through the inflow valve as I can hear it and I have demonstrated it by shutting the outflow valve and bleeding the radiator with the inflow open and it continues to flow with pressure, which it did not do prior to me cleaning it, but I am not sure it is as free flowing as the outflow and definitely not as much as the other towel radiators on the system, you can hear a real rush of water when their valves are adjusted, but the fact that I can bleed it with pressure (with outflow closed) suggests there should be enough flow for hot water to rise through the inflow valve surely, or is there just not enough pressure as this is the tallest radiator on the 1st floor?
When the system was drained I had the radiator off and the inflow and outflow pipe were exposed I did try pour some water into them to see if the water went down the pipes, the outflow took the water away no problems, but the inflow just filled up with water and did not drop at all, is there something on the T junction that only allows water one way into the inflow that possibly explains that??
Thoughts? Any advice appreciated.
Not experienced in plumbing but I feel there is potentially a blockage near the inflow valve, but is it normal for enough water to get through to heat the tail pipe but not the bottom or top or radiator?
Cheers
John