4 bar pressure. Should I turn it on?!!

[kkelly77]

I had an issue with frozen pipes for the CH the last few days. Repaired a burst outside pipe and re-insulated it which seems to have thawed the freeze.

However the pressure gauge on my boiler which normally reads just under 1 bar is now at it's max, 4 bar!!! Should I turn on the CH with the pressure this high? Or should I drain off some water in the CH system?

Need to get the heating going while I have the chance. Thanks.

K

 

[Blake]

Have you left the filling loop open? Twist the red part to release some of the pressure in the system, I would expect water to have been discharging out of the Pressure relief pipe if that is a true reading. Anything over 3 bar and that valve with the guage on should open up to release the pressure outside.

 

[gasmarc]

dont touch the red valve, drain some water of via a rad to 1 to 1,5 when cold and that will be ok

 

[hihowudoin]

at the end of the day, the pressure relief valve is not operating as it should and requires replacement (safety device). as previously stated they are usually set to 3 bar.

 

[kkelly77]

Only as soon as I posted my original message, I check the pressure valve again only to find it back to 0 again.

Unfortunately I found another burst pipe after some investigation. Replaced burst section and did my best to re insulate. Have a blower heater on the pipes at the moment. Gauge still reading 0.

 

[cjg]

when all done check for all and any more leaks , then i would take it up to only 1 bar cold, run on low temp. for 1 hour and keep an eye on things , if ok, then up to 1.5bar (only if you have run it at very low temp/min.) see how you go from there but it should not get up to or near 3bar. if it does it then can and will be dangerous.

regards,
merry xmass.

 

[kkelly77]

Still no luck with the blower heater. Gauge at 0 and hasn't budged. Pipes could be frozen anywhere, especially seeing as they go underground and I have no idea where they are routed. Looks like it'll be a chilly Christmas morning.

HAPPY CHRISTMAS ALL!!!!

 

[hihowudoin]

gotta ask the question even though it should be obvious, but, have you actually tried re-pressurising the system via filling link ?

 

[kkelly77]

gotta ask the question even though it should be obvious, but, have you actually tried re-pressurising the system via filling link ?

No. It's a vented system so any time I've had to drain it before I just let the header tank refill and that would take it back up to ~1 bar

 

[cjg]

hi there , just try a little in see if you get any where , see if you get a reading on gauge . would hate to think no heating x mass, we try to keep a eye on here if i can but got guess"S here !! good luck