Bathroom rad "fades to lukewarm" when all others a

18 Dec 2007
Reaction score
United Kingdom
Thanks in advance for any idea what is causing this fault...
All the rads in the house work ok apart from the bathroom fades to lukewarm..I called a plumber..he shut all the rads apart from the bathroom rad and ran the sys on full(open system) He said after the sys has been on for a few hours open all the other rads half a turn and that should fix the problem...balancing???? All the other rads were piping hot but the bathroom rad faded to lukewarm...The bathroom rad was flushed out a long time ago and the water was sludge...
Any ideas???

Is this a pressure fault...pump??It is set at max
Would a power flush sort this out?
Would putting a cleaner in this system and then drain solve this???

Any ideas wouls be appreciated....

PS...This is a old system but this is the only fault....
The boiler has been serviced and the pump was changed quite a few years ago... but the rad fault seems to have always been there

All rads are original.........

The rad in the bathroom heats up very warm but not piping hot when it was on by itself..........
Sponsored Links

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Sponsored Links