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Where is the isolation valve?

I have a ferroli optima 700. I recently had a leak which stopped my boiler from working completely (no hot water or central heating). The engineers came out and said that my thermocoupling had gone, and I had a leaky auto air vent. Both of these have been changed, and I have now been told that the leak is in the isolation value. Im losing pressure all the time, can you help?. Also can you fill the boiler while its on? And what's a good boiler to buy?

Melinda
February 2009

Ferroli Heating, Home Heating Systems Ferroli Boiler Working

Isolation valves are under boiler where its connect to boiler frame work connection you should be able to see leaking or feel water on it, there will be 2 for heating on 22mm pipes and one for cold water and one for gas

Mr K
February 2009

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