Honeywell Lyric T6 seems to report misleading information

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Honeywell Lyric T6 seems to report misleading information

Postby yjb » Mon Mar 27, 2017 6:04 pm

Hi,

I did upload a log for the honeywell Lyric T6 thermostat (http://otgw.tclcode.com/equipment.html).

After uploading it shows that the thermostat sends ID 16 (Room setpoint) and 24 (Room temperature). In fact it does send the id's but the temperature is always 20:

Code: Select all
00:00:17.219676  T90181400  Write-Data  Room temperature: 20.00
00:00:17.320333  B50181400  Write-Ack   Room temperature: 20.00
00:00:17.756933  T10101400  Write-Data  Room setpoint: 20.00
00:00:17.863631  BD0101400  Write-Ack   Room setpoint: 20.00
00:01:18.576166  T90181400  Write-Data  Room temperature: 20.00
00:01:18.684213  B50181400  Write-Ack   Room temperature: 20.00
00:01:19.118975  T10101400  Write-Data  Room setpoint: 20.00
00:01:19.227727  BD0101400  Write-Ack   Room setpoint: 20.00
<SNIP>
15:01:37.199877  T90181400  Write-Data  Room temperature: 20.00
15:01:37.307410  B50181400  Write-Ack   Room temperature: 20.00
15:01:37.743632  T10101400  Write-Data  Room setpoint: 20.00
15:01:37.850016  BD0101400  Write-Ack   Room setpoint: 20.00
<SNIP>
19:00:44.419684  T90181400  Write-Data  Room temperature: 20.00
19:00:44.526472  B50181400  Write-Ack   Room temperature: 20.00
19:00:44.968091  T10101400  Write-Data  Room setpoint: 20.00
19:00:45.069889  BD0101400  Write-Ack   Room setpoint: 20.00
19:01:45.729642  T90181400  Write-Data  Room temperature: 20.00
19:01:45.815472  B50181400  Write-Ack   Room temperature: 20.00
19:01:46.255161  T10101400  Write-Data  Room setpoint: 20.00
19:01:46.358352  BD0101400  Write-Ack   Room setpoint: 20.00


In real life the temperature settings is either 15 or 19, and the real temperature varies throughout the day. Both are displayed correctly on the thermostat.

Is there anything that can be done on this, or should I open a case with Honeywell to get this straightened out?

Thanks,
Ysbrand
yjb
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Re: Honeywell Lyric T6 seems to report misleading information

Postby yjb » Fri Jun 09, 2017 2:59 pm

After a lot of conversations with Honeywell support, they did finally address the issue.

On June 6th new firmware was uploaded and the thermostat now correctly reports the ID 16 (Room setpoint) and 24 (Room temperature)values over OpenTherm.
yjb
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Re: Honeywell Lyric T6 seems to report misleading information

Postby hvxl » Sun Jun 11, 2017 9:40 pm

That's a great result! It's also good to know that Honeywell does fix such issues, if the customer perseveres long enough.

Is there some way to check the firmware version on these thermostats? Which version contains this fix?

According to the equipment matrix, the T6 sends OT MsgID 9. Does the override remote setpoint functionality actually work?
Schelte
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Re: Honeywell Lyric T6 seems to report misleading information

Postby yjb » Sun Jun 11, 2017 10:14 pm

Hi Schelte,

Both ways of override do NOT work; I'm using IFTTT to achieve the same functionality.

I will check the FW versions tomorrow, there is actually a whole bunch of them. On the other hand, it doesn't really matter as Honeywell pushes firmware updates to the thermostat.
yjb
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