ticking radiator

[bognorbabe]

I am cursed with a ticking rad in the lounge. I changed my hall rad from a single to a double in the summer and had the system drained twice due to a bit of a leak. Since this I have had a ticking rad in the lounge next door. It quietly ticks when getting up to temp and then went the thermostat cuts in in gains a second louder tick. The boiler is old and I did put Fernox in about 4 weeks ago as it had got really noisy again(very hard water area).I have bled all the rads and no air.
I would be grateful for any ideas on how to cure this.
Caroline

 

[Slugbabydotcom]

Causes of noise in or around a radiator:-

Pipes expanding and contracting .... rubbing along a tight notch in a joist

Rad E&C in the brackets

Debris in the pipe or rad

Air in the pipe or rad

Mono-directional TRV's fitted the wrong way round

Paranormal activity.... Poultergeists n stuff

My money is on one of the first two
Cut a bigger notch or pack up floorboard. Amazingly a bit of talc in the area can reduce the rubbing effect

Likewise if its expanding in the brackets a bit of lubrication can help. Some manufacturers provide plastic 'rad rests' which fit on the brackets and its likely that these arent fitted for whatever reason

 

[PEDANTICVINDICTIVEMAN]

The shed where you bought the rad from will sell ear muffs, these work wonders as you cant hear the wife either, just turn up the telly.

 

[PaulAH]

The WIFE??!! Caroline lives in Bognor, not Brighton