Incorrect range for local_temperature_calibration on Bosch BTH-RA (Room Thermostat II) #30469
Description
What happened?
Description
The Bosch Room Thermostat II (BTH-RA) no longer accepts local_temperature_calibration values outside the range of -2.5 to +2.5°C. This worked correctly in previous versions but broke after the latest update.
Expected behavior
Based on the error message "localTemperatureCalibration requires min of -25", values between -25 and the maximum should be accepted. Alternatively, if the actual range is -2.5 to +2.5, this should be clearly documented and the error message should reflect the correct limits.
Actual behavior
Values between -2.5 and +2.5 work correctly
Any value below -2.5 or above +2.5 produces an error
Error message shows: Error: localTemperatureCalibration requires min of -25
The error message is misleading as it suggests -25 is the minimum, when the actual minimum is -2.5
Example error
z2m: Publish 'set' 'local_temperature_calibration' to 'Heizung: Wohnzimmer' failed: 'Error: localTemperatureCalibration requires min of -25'
Device information
Device: Bosch Room Thermostat II
Model: BTH-RA
Regression details
Previous behavior: Values outside -2.5 to +2.5 (e.g., -5) worked correctly
Current behavior: Only values between -2.5 and +2.5 are accepted
When it broke: After updating to the latest Zigbee2MQTT version
Additional context
This is a regression that affects existing setups:
Users who had calibration values outside -2.5 to +2.5 configured before the update can no longer adjust them
The error message displays incorrect range information (-25 minimum vs actual -2.5 minimum)
This worked correctly in the previous Zigbee2MQTT version
In my case, i use Better Thermostat and now its no more working correctly.
What did you expect to happen?
No response
How to reproduce it (minimal and precise)
No response
Zigbee2MQTT version
2.7.2-1
Adapter firmware version
7.4.4
Adapter
Home Assistant ZBT-2
Setup
Home Assistant OS
Zigbee2MQTT add-on
Device database.db entry
No response
Debug log
No response
Notes
No response