6/10/2023 0 Comments Brivis ducted heating user manualThe RT is sending the correct call signal when the room temp drops. The will trigger another attempt (logic goes back to step 1).sometimes it will fire-up for a few more cycles, sometimes the reset does not help. The alarm can be reset at the room thermostat (RT) or it can be reset on the control board (CB). Both the room thermostat (Honeywell Chronotherm III a.k.a "Vulcan") and the control board on the heater go into a rest/alarm mode. So the issue is an intermittent failure to ignite at the beginning of the cycle. The OP's symptoms are very similar to mine - so I'm wondering where this ended up? It currently has an intermittent problem that is proving quite difficult to accurately troubleshoot. I have a mid 90's Brivis HE5 Wombat ducted LPG Heater. Came across this thread in my 's not that old so I thought I'd dig it up.
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