Vokera Linea Plus combi, fires up, CH gets up to mid-70s temp if set to max (never to the 78/82 which I seem to remember being its max). The pump seems to be working. Flow pipe gets hot. The boiler then modulates down briefly after hitting 74/75 and then shuts off pretty much straight away. Waits 3 minutes aby which temp reading is down in the 30s/40s, fires (after the 3 min lock times out), gets back up to
70s, modulates down and shuts off again. Repeat ad infinitum. Result cold house. Add cold grumpy wife into the equation. Help!- posted
13 years ago