Flow Temp Rising Too Quickly - Fix?

[dilalio]

Could it be that this filter needs emptying, it appears to be towards the end of the gauge

Pressure gauge?
Can you send photos?

 

[dilalio]

Yes, it is on the return pipe and pointing down.

If your boiler is above it, it should be pointing up!
It should be pointing towards the boiler.

EDIT: forget that, checked photo again and looks like boiler it to the right of it and pipes come down from above, so looks good from what I can see on the images.

 

[John Smith Esq.]

Pressure gauge?
Can you send photos?

I meant the guage on the filter. There is an arrow pointing to a yellow line and it is near the end of it.

Pressure gauge is fine. Stays in the green just above 1.

 

[John Smith Esq.]

If your boiler is above it, it should be pointing up!
It should be pointing towards the boiler.

 

[dilalio]

I meant the guage on the filter. There is an arrow pointing to a yellow line and it is near the end of it.

That's to indicate correct and incorrect closure of the lid.
Have you just tightened it because your latest photos look like its in 2 different positions?

 

[John Smith Esq.]

That's to indicate correct and incorrect closure of the lid.
Have you just tightened it because your latest photos look like its in 2 different positions?

No, not changed it. Just photo angles. Could this thing be full of crap and need emptying?

 

[John Smith Esq.]

How about power rating? I have it on 9.1KW. Could be a bit lower or much higher

 

[dilalio]

No, not changed it. Just photo angles. Could this thing be full of crap and need emptying?

Yes, should be done at same time as annual service.
You can do it yourself but be warned they can leak when sealing back up again.

 

[dilalio]

How about power rating? I have it on 9.1KW. Could be a bit lower or much higher

Is return pipe as hot as flow pipe?

 

[Johntheo5]

OK, Have you cleaned it recently?, if so, as suggested set the pump to its highest setting and the flowtemp to 70C and try it.

 

[John Smith Esq.]

Interesting. With CH running it has stopped at 53C for a prolonged period now. As it is set to do. I wonder if it was the air trapped in that filter? I ran the air purge after bleeding it and heared a ping in one of the rads as it kicked air out.

Looks like problem might be solved!

Shall I leave air purge mode on AUTO? Or just have it OFF?

Also, do you know how I clear the D4 error messages? Holding reset doesn't do it when I'm in the relevant part of the system.

Oh hang on... it's just gone up to 54C. It stayed on 53 for a while though. Will try pump head on 4 and increase flow temperature. Is this supposed to help move air out? I then go back to lower pump setting and temp?

 

[dilalio]

likely the auto air vent in the boiler is blocked or closed down.

 

[John Smith Esq.]

Ah, having air purge on auto means it runs one cycle then turns off.

 

[John Smith Esq.]

likely the auto air vent in the boiler is blocked or closed down.

Is this easy to fix?

 

[John Smith Esq.]

likely the auto air vent in the boiler is blocked or closed down.

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