TRV leaking through pin

[houstonwehaveaproblem]

I have 3 TRV’s that are all leaking through the pin.

Is changing them a novice diy’er can do?

what’s the best/easiet method

thanks

 

[Madrab]

Is the system sealed or open vent? If the system is sealed (pressure gauge on the boiler or system somewhere), then the process will be much easier.

It is DIY'able but needs a reasonable DIY skill set to ensure they are fitted quickly and correctly.

 

[houstonwehaveaproblem]

Is the system sealed or open vent? If the system is sealed (pressure gauge on the boiler or system somewhere), then the process will be much easier.

It is DIY'able but needs a reasonable DIY skill set to ensure they are fitted quickly and correctly.

thanks

it’s a combi boilers has a pressure gauge

 

[ianmcd]

thanks

it’s a combi boilers has a pressure gauge

Then it is a sealed system

 

[houstonwehaveaproblem]

Then it is a sealed system

should I just drain it down and replace them?

 

[ianmcd]

should I just drain it down and replace them?

If you want but remember and add inhibitor when re-filling