Booster pump installed successfully, but now boiler goes to overheat!

[ShaunCorbs]

Turn your hot water booster pump on does it still overheat? You might need to run a tap

 

[Vitali]

I tried that approach as well. OVERHEAT!

 

[ShaunCorbs]

Time to get a plumber in sorry to say

 

[Vitali]

Now I have the booster pump disconnected altogether but no joy. Could the pump look and sound like running but not pumping? Went to neighbors with the same system. Checked the pipe going out of the circulation pump-- it is hot as it should be. Mine is not!

 

[king of pipes]

Yes the heating pump could be airlocked does it have a screwdriver slot on the front of the pump this can be loosened to remove the air put a cloth under it though also vent all your radiators and high points on your system cheers kop

 

[deg]

Is that gate valve on the bottom of the coil open?

 

[Vitali]

It is open now, yes. How do you check actually if the valve is faulty, only by taking the connection apart?

 

[Chalked]

I think the gate valve may have sheared off.

 

[deg]

It is open now, yes. How do you check actually if the valve is faulty, only by taking the connection apart?

When turning the valve anti clockwise it will just keep turning and turning = broken valve

 

[Vitali]

Then it's in good condition as it stops firm when opened and when closed plus I can hear water flow a bit.