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
I would be grateful for any ideas on how to cure this.
Caroline