The Efficient Home Forum

I experienced a similar problem about 6 months ago. When I asked Honeywell for advice they suggested removing the batteries from the HR92(s) in the zone that had the problem, wait approx. 1 minute then reinsert batteries. - It worked for me.

I obviously still have a lot to learn. Thanks for advice.

Clearing the Fault Log appears to have resolved the issue.
Had thought the Fault Log was a simple log of events and nothing more, this presumably is not the case.

Since initial installation have never cleared fault log. What I just noticed is that some dates and times etc of “Faults” as recorded in controller log, do not accord with the appearance/disappearance of the fault symbol in the various zones displayed on the controller - presumably fault symbols ...

I installed an Evohome System to control the heating and hotwater system in my home in late Dec 2015. My system functioned faultlessly until 10/02/16, the date on which my firmware was automatically updated by Honeywell, from 01.00.01.00/01/00.01.00 to 01.00.02.01/01.00.02.00. On this day, the ...