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Mar 16, 2025
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0
1
Uk
Member Type
Heating Engineer (Has GSR)
I have a customer who has had pressure dropping from their system. I went to the property and firstly checked for any leaks anywhere. There was none. I had a look at the boiler and the expansion vessel had failed.

I ordered the expansion vessel and prv and have changed them both. I've recently had a call saying the system is still dropping

Is there any idea on what else this could be and what I can do to find the issue. The only other thing I can think of is a split coil ?

Any advice would be much appreciated.

When the pressure drops it is to just above 0
 

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