After create entity -> Controls Unavailable

[Michael2222]

Hello,

I have setup Better Thermostat and create a new Entity.

But the controlls from the entity displayed: Unavailable.

Then I have torn on the debug mode and I get this log entry:

`
This error originated from a custom integration.

Logger: homeassistant
Source: custom_components/better_thermostat/adapters/generic.py:39
integration: Better Thermostat (documentation, issues)
First occurred: 14:43:47 (3 occurrences)
Last logged: 14:44:47

Error doing job: Task exception was never retrieved (None)
Traceback (most recent call last):
File "/config/custom_components/better_thermostat/climate.py", line 826, in startup
await init(self, trv)
File "/config/custom_components/better_thermostat/adapters/delegate.py", line 44, in init
return await self.real_trvs[entity_id]["adapter"].init(self, entity_id)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/config/custom_components/better_thermostat/adapters/generic.py", line 39, in init
).state in (STATE_UNAVAILABLE, STATE_UNKNOWN, None):
^^^^^
AttributeError: 'NoneType' object has no attribute 'state'
`

Where could the error be?

Thanks!
Michael

[ultim4te]

same here

[Odinson1988]

Same issue...

[PyHae]

Same here ...

[mase60]

for me it´s only when i add more then one thermostat. every better thermostat i created with only one thermostat works fine.

found this in the debug logs:
2025-09-26 20:31:44.457 INFO (MainThread) [custom_components.better_thermostat.adapters.mqtt] better_thermostat BT Bathroom: waiting for TRV/climate entity with id 'number.thermostat_bathroom_local_temperature_calibration' to become fully available...

so i set the Local temperature calibration to 0 in Z2M, seems to fix my issue.

[Michael2222]

for me it´s only when i add more then one thermostat. every better thermostat i created with only one thermostat works fine.

Thanks for the tip. I tried it with just a thermostat, but I get the same error message:

[mase60]

Thanks for the tip. I tried it with just a thermostat, but I get the same error message:

is the local temperature calibration set in Z2M? this fixed it for me

[Lerk90]

I’m experiencing the same issue. I’m setting up a third thermostat, configured the same way as the previous two, but it always returns the status ‘unavailable.’ I’ve tried several troubleshooting steps, but I haven’t been able to resolve it.

[SkyDog]

Same here, tried to remove and new add ... no luck. Sensor an thermostat responds to z2m inputs.

EDIT: Looks like the hint from @mase60 fixed it. At least for now. Looks like all z2m fields of the real thermostats need a value. I inserted suitable values or 0 in the empty fields of the function page under z2m.

[Michael2222]

I inserted suitable values or 0 in the empty fields of the function page under z2m.

Do you mean with z2m "zigbee2mqtt"?
I have a ZWave Thermostat: Spirit Z-Wave Plus (https://manual.zwave.eu/backend/make.php?lang=EN&sku=EURESPIRIT&cert=ZC10-17095777)

[SkyDog]

Do you mean with z2m "zigbee2mqtt"?

Yes. z2m is "zigbee2mqtt". I don't use ZWave, so I have no Idea how it's implemented in HASS. But I recommend to look out for Fields/Settings containing no Data.

[TheOpsMgr]

Note that changing the BT calibration mode to "target temperature based" as opposed to "offset-based" will also bring the thermostat back online. Might need a reload of that thermostat and take a minute but I've tested it on 3 thermostats.

So you can either (1) go into Z2M, locate the TRV device, go to "exposes", set the local calibration to a number OR (2) in BT, change the calibration to for that thermostat configuration to "target temperature based"

[tobij90]

I have the same issue with 3 Sonoff TRVZB devices. Changing the calibration type helped. I also tried to reinstall v1.6.1 but nothing changed.

[Belgose]

for me it´s only when i add more then one thermostat. every better thermostat i created with only one thermostat works fine.

found this in the debug logs: 2025-09-26 20:31:44.457 INFO (MainThread) [custom_components.better_thermostat.adapters.mqtt] better_thermostat BT Bathroom: waiting for TRV/climate entity with id 'number.thermostat_bathroom_local_temperature_calibration' to become fully available...

so i set the Local temperature calibration to 0 in Z2M, seems to fix my issue.
@mase60
You made my day! It also fixes the issue, if multiple thermostats are connected!