Air in highest radiator with Worcester Bosch combi

[Rob Roy]

Hi. My bathroom ladder-type towel radiator requires regular bleeding. The water level in it drops by about 8-10 inches over a two to three week period. The boiler pressure gauge also drops from approx. 1.5 down to 0.5. No other rads seem to be affected.
The radiator is at the highest point in the house, and is on the same bathroom wall, next to, and about level with, my new 2 years old Worcester Bosch combi. The top of the rad is a few inches higher at the top tube. I have to re-charge the boiler after two or three bleeds. I can’t see any leakage under floor which may cause the problem. R.R

 

[Rico99]

Is this a new problem or has it been happening all the time.

Which came first the boiler ot the warmer.


Is water being discharged from the PRV outside.

Is the pressure correct on your expansion vessel.

Definately no leaks around any the rad valve spindles down stars.

Check all the above and report back.

Rico