Remeha iSense V30 remote override not working

[bushwoelie]

I just installed a OTGW between my Remeha Avanta boiler and Remeha iSense V30 thermostat. Reading the status of the system works just fine but I cannot set the temperature.
According to https://otgw.tclcode.com/matrix.cgi#thermostats my thermostat should support MsgID 9 ((Remote Override Operating Modes).
According to this forum posts there are 2 things that have to be set right: viewtopic.php?p=75121#p75121

1) The iSense firmware needs to be version 19 or higher but where can I find the verion my iSense is running (cannot find it in the menu)
2) Also Remote setpoint override is disabled by default and has to be enabled via the menu. I already enabled the "advanced" menu of the thermostat but cannot find that setting anywhere (maybe because my firmware is lower that 19).

I've also attached a picture of the back of my iSense with all labels/markings

[hvxl]

If the sticker says it's V30, then it probably is V30. To check it via the menu, do:

• English: Main menu -> Information -> More information -> Version number
• Dutch: Hoofdmenu -> Informatie -> Meer informatie -> Versienummer

The version number is one of the last entries, so I advise to turn the knob counter clockwise.

To be able to access the remote setpoint setting, the extended user mode must be selected:

• English: Main menu -> Settings -> Users -> User mode -> Extended mode
• Dutch: Hoofdmenu -> Instellingen -> Gebruikersinst. -> Gebruiksniveau -> Uitgebreid

Then the remote setpoint setting can be enabled:

• English: Main menu -> Settings -> Installer -> Remote input -> Allow
• Dutch: Hoofdmenu -> Instellingen -> Installateur -> Externe ingang -> Toestaan

[bushwoelie]

Hi Schelte,

Thanks for the info. I did not realize V30 was the firmware version. I thought this would be some kind of hardware revision.
After enabling the remote input I can indeed set the temperature from Home Assistant. Great!

Also thanks for developing the OTGW. In this was for a small amount of money I don't have to buy one of the well known smart thermostats that "think" for you but now I still have the thermostat that perfectly works with my boiler and still I'm able to automate things from Home Assistant.

Kind regards,

Marck

[bushwoelie]

Maybe a small follow up question:

When you manually override the temperature on a iSense thermostat (and you are not running the normal program) a "hand" symbol is visible in the top right corner of the display. Now I'm looking to show that status (if the system is running the program or a manual setpoint) in Home assistant but I cannot find the correct entity in the 175 entities that are available. So is this value available as an enitity? And if so, which is it?

[hvxl]

There is no Opentherm message defined for this functionality. It was probably not deemed necessary for a boiler to be informed of such a situation. In version 3 of the opentherm spec, MsgID 99 was added. This MsgID was more created with a gateway in mind, rather than just a thermostat and boiler. And it comes close to what you're asking about. But it there is no value defined for "manual".