How to mend ... System Rad Valves

replace radiator valve?

i have removed rad and replaced with towel rail. i also need to replace trv and lockshield valves, how do i dr... [Read more]

Warmflow 70/90 Oil Fired Combi rads not getting hot?

I have a Warmflow 70/90 Oil fired combi and the press ure relief blew the other day, i checked the expansion v... [Read more]

vokera maxin 24e combi `continually blowing off`?

my daughters maxin 24e is continually loosing water through the blow off valve ( why) ,also the rad valves mak... [Read more]

2 rads wont heat, i have diagnosed everything i can think of?

i have 2 radiators that wont heat at all, they are the 2 furthest from the boiler, both with relatively new tr... [Read more]

Removed Radiator, now no hot water?

Removed rad from system and now no hot water. I have a Biasi M96.24sm boiler. The rad removed was an old rad... [Read more]

valient bolier 282/2 lost pressure?

Turned system off to change rad valves, lost pressure how do i get pressure back

Danfoss Ras-D2 Valve Problem?

I have just had a brand new heating system fitted in my house; everything is working as it should. The problem... [Read more]

The rads are still not heating up after suggested fix work?

I asked the question of why the downstairs rads were not heating up and i was advised (by peccavi) to turn off... [Read more]

Fix small leak in central heating system?

My (new) oil combi boiler loses pressure from 1 bar to 0 in about 24 hrs showing I have a weep in the system p... [Read more]

how do i drain a combi boiler and radiators?

i am attempting to replace my basic rad valves with thermostatic ones, do i need to drain the system and if so... [Read more]

loosing pressure?

had a betacom 30 installed last nov.plumber used a mixture of plastic and copper pipe on the rad cicuits. due... [Read more]

Prima F60?

Have just moved into a new house and replaced the Rads for doubles as old ones wher 1970ish. Hot water getting... [Read more]

Hot rads?

The c/heating boiler has just had it's annual inspection by British Gas and the engineer checked all rads and ... [Read more]

potterton netaheat 16-22 not lighting probs?

I have just replaced all the rad valves in a mates house, drained the system, replaced all the velves and retr... [Read more]

thermostatic radiator valve?

my rads have thermoststic valves , i want to remove a rad to decorate but when i crack a union there is still ... [Read more]

Can I change a radiator valve without draining the system?

Hi, I have an old gravity hot water pumped heating system, the boiler is a reliable, but expensive, Vulcan Con... [Read more]

Draining a sealed system and adding a rad?

My daughter and family have moved in to a chalet bungalow and one upstairs bedroom lacks a radiator. My son i... [Read more]

Debris blocks heating in radiators?

I recently had to replace a rad. Since then a different rad has been cold one day then it works fine, but anot... [Read more]

why are half of my rads staying cold?

with my central heating switched on and all rad valves open only upstair rads heating up and none down stairs.... [Read more]

potterton ultra 2 switching to lockout after draining and refilling system?

after draining the system to fit new rad valves the system was refilled and turned back on it fired up ok then... [Read more]