I realised that Tony once i took the cover off and saw the burner. Why don't manufacturers stick labels with " Do not remove unless CORGI registered" on them, or seal them like on gas meters.
I put the cover straight back on, but am interested in how a fan would be tested. But i now...
When it was working both heating and water were fine. It just kept cutting out. Then it would start up again so i had a look to check. Thats when i noticed the board ??relay sparking. Just tapping the wires behind resulted in the boiler firing up again ---until now.
Hi everyone. new post so bear with me. glad to have found this forum.
I have (inherited) a ravenheat rsf 820. This morning it was firing up and then stopping, then firing up(10mins) and stopping. Then it fired normally for an hour before stopping again.
When it fires i can hear the fan...