Recent content by abeach

Well it has gone back to working fine at the moment no matter if I use the DHW or not. So I am not going to touch it for now. Deffo sounds PCBish now though.

Ok, understood. It is intermittent in the fact that it doesn't necessarily happen on the first use of DHW. For example this morning, the shower and another DHW outlet (used for >20s) were used and it was still heating ok. However, last night after a couple of short uses of DHW it got stuck in...

So if I disable the pre-heat with jumper 6 and it still cycles on every 15-30 mins for a short period, the chances are it is a stuck valve? If not it might be this anti-cycle thing?

Sorry, it does fire for a very short period, say 5s every 10-15m. I thought this was the hw pre-heat. Immediately after this the temperature lcd falls back sharply from 60+ to a low temp. Thanks for your assistance

Do you not think it could possibly be the divertor valve or its actutator getting stuck in hw mode? The removing of power could reset the valve/actutator giving heating again?

I have a Vokera Linea 735 combi boiler powering my central heating and hot water. When starting from cold (hard reset, power off) the heating fires up nicely following a demand for heat from the time clock (no additional controls). Following a number of hot water requests the heating stops...