Potterton Combi Boiler Frequent Pressure Loss in Winter only

[Rob Foster]

Cheers Riley. I've had differing advice from each highly recommended engineer I've spoken to. The boiler was fully tested and serviced in October, but it's still happening. I'm at my wits (& wallets) end trying to figure out what to do next.

I cannot see if you have established if its the boiler or the heating system...treat as two sep. items ...others will explain how to do this I hope as I am busy with Jimbo
Rob Foster....centralheatking