Replaced PRV. No sign of leaks. Filling loop not connected. Will refill to 1.7 bar but within a day it has dropped below working pressure with two lights flashing. The guage (replaced) will show nearly zero, when reset it will go back up to half a bar. When refilled it operates as normal on DHW and heating.
Boiler is about ten years old. Replaced fan assembly last week and tried replacing board but of no help.
At what points in the system apart from a leaking pipe connection will water escape please?
If it is a sealed system the areas of leakage must be limited to the PRV, and what other component?
Cheers,
John.
Boiler is about ten years old. Replaced fan assembly last week and tried replacing board but of no help.
At what points in the system apart from a leaking pipe connection will water escape please?
If it is a sealed system the areas of leakage must be limited to the PRV, and what other component?
Cheers,
John.