[OpenTRV-interest] Frequent non-communication periods between hub and its valve

[Damon Hart-Davis]

Hi,

Two things commonly cause problems:

1) Transmitter too close to receiver seems to deafen it (FHT8V or OpenTRV in listen mode).  Minimum distance of ~2m seems to be safe.

2) Batteries getting low on FHT8V.

Sorry that you’re having this trouble!

Rgds

Damon

> On 22 Mar 2015, at 09:32, EMAIL ADDRESS HIDDEN wrote:
> 
> My OpenTRV system is suffering frequent and significant periods (hours) of unsuccesful communication between OpenTRV (hub) and its valve though only ~1m apart.
> 
> Resettimg OpenTRV resolves the issue thus not a basic RF problem but some kind of behaviour problem. After working for some considerable time (hours) problem seems to resurface. Otherwise no discernible pattern.
> 
> I have tried other positions radially and range (further away) for hub with no significant change in this behaviour.
> 
> RF goes through combinations of air, armchair, person, possibly corner of radiator but succeeds/fails in all combinations.
> 
> Any ideas?
> 
> NB One other OpenTRV in operation, typically infrost mode.
> 
> Regards Gary
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