Combi 80 pressure 3-4 will I blow up?

[kfdarboe]

Hello,
very worried about Potterton combi 80. 2-3 years old and is leaking through pressure relief valve, constantly dripping, and pressure bar is high on 3 and 4 when heating is on.....
help

 

[oilman]

Get some one in to look at it. Failing that, tell us lots more about your system, such as when was it last serviced?.

 

[kfdarboe]

Dear Oilman,
Thx for your speedy reply.
We have never had a service. Apparently new boiler when moving in May 03, we've had a gas safety check 1.5 yrs ago when a different fault occured and a part was replaced.
Thx.

 

[chrishutt]

You've probably got the filling loop open. Make sure the valve(s) is shut and no water is entering system. If PRV valve does not stop dripping once pressure is below 3 bar, it may need replacing.

 

[kfdarboe]

Thx for your reply.
I had a plumber in last week- the loop was open. He drained some water thru radiator and pressure has dropped. A lot of kettling going on but all ok so far. Altho', presure has now dropped to 0.5......... :