Flow Temp Rising Too Quickly - Fix?

[dilalio]

But there isn't any problem with pressure build up. Gauge stay at same low (green) level.

any air that gets into the boiler should be removed by the AAV. If a pocket gets into the hex and stuck, the temp will rise very quickly.

 

[dilalio]

I'd clean the filter out.

 

[John Smith Esq.]

Should the radiator in the room with the thermostat be fully open? I don't have a TRV on it, just a knob with no numbers, but I don't have it fully open. It isn't near closed or anything, the rad gets hot.

 

[John Smith Esq.]

I'd clean the filter out.

Can this be done without emptying the system?

Oh close valves when eating off presumably

 

[John Smith Esq.]

This thing isn't getting up to 70C, is it befsuse I have KW to low?

 

[Johntheo5]

Can this be done without emptying the system?

Oh close valves when eating off presumably

Close valves, 1/4 turn valves, open vent or drain into bucket before trying to slacken cover, there shold be a spanner provided. Lying around somewhere.

 

[dilalio]

Oh close valves when eating off presumably

Personally, I'd eat before or after, not during

 

[fixitflav]

If there's a magnetic filter, with valves, that they are not closed.

#9 looks like a magnetic filter to me!

 

[John Smith Esq.]

Cleaned the fitter out. Straight forward enough. Lots of ****e came out. Replaced water. Now radiators very noisy!

 

[Johntheo5]

Cleaned the fitter out. Straight forward enough. Lots of ****e came out. Replaced water. Now radiators very noisy!

Check boiler pressure, you may have top it up to ~ 1.3bar, you will have lost a litre or so of water from the filter.

 

[John Smith Esq.]

Check boiler pressure, you may have top it up to ~ 1.3bar, you will have lost a litre or so of water from the filter.

Yeah done that.

 

[John Smith Esq.]

Should the radiator in the room with the thermostat be fully open? I don't have a TRV on it, just a knob with no numbers, but I don't have it fully open. It isn't near closed or anything, the rad gets hot.

Thoughts on this? Could the valve on that radiator not being fully open be the thing that's causing the obstacle?

 

[Johntheo5]

Yeah done that.

Also vent air regularly from the filter for the next few days. The boiler AAV may be have been shut off by the installer or service person.

 

[John Smith Esq.]

My radiators are all TRVs set to about 3. Bathroom rail has no TRV - that is open so it gets but not fully. Rad where central thermostat is fully open.

Any relevance?

 

[John Smith Esq.]

Also vent air regularly from the filter for the next few days. The boiler AAV may be have been shut off by the installer or service person.

How do I check AAV?