Hi.
My M90F 28S Central Heating runs at 1.2 bar pressure, the boiler is cutting in at 30 degrees and completes its cycle at 60 degrees. When the boiler is building up heat from 30 the pressure gauge fluctuates from 1.2 bar to 1.8 bar then stabilizes??
Anyideas would be appreciated.
My M90F 28S Central Heating runs at 1.2 bar pressure, the boiler is cutting in at 30 degrees and completes its cycle at 60 degrees. When the boiler is building up heat from 30 the pressure gauge fluctuates from 1.2 bar to 1.8 bar then stabilizes??
Anyideas would be appreciated.
