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

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As it happens the FHT8V after a big open or close does indicate batteries but otherwise not. I beleive the problem has existed for a long while so not necessarily recent i.e. related to power, plus I would have thought OpenTRV reset would be more tiring for the FHT8V, as I am assuming it would have to listen more and lock on. Nonetheless I will experiment.

Range: I am fairly certain I have tried greater ranges but saw no improvement.  Nonetheless I will experiment.

No need to apologise - not a complaint just a report.

I have another RF problem - I will report that seperately and before I start moving things around.

Regards Gary




----Original Message----
From: EMAIL ADDRESS HIDDEN
Date: 22/03/2015 11:04
To: "Open, non-developer list for interested parties"<EMAIL ADDRESS HIDDEN>
Subj: Re: [OpenTRV-interest] Frequent non-communication periods between	hub and its valve

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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