Target heating temperature for Dyson Heat/Cool purifier is set above the max allowed and fails

[twghacc]

RoomMind version

1.7.5

Home Assistant version

2026.7.2

Description

When using a Dyson Heat/Cool purifier as secondary heating source Roommind tries to set the target temperature to 37 C which is out of bounds for this unit. The unit comes on in heating mode but the target temperature does not change and an error is logged in the system log by the Dyson integration.

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This error originated from a custom integration.

Logger: custom_components.hass_dyson.climate
Source: custom_components/hass_dyson/climate.py:487
Integration: Dyson (documentation, issues)
First occurred: July 24, 2026 at 6:12:00 AM (270 occurrences)
Last logged: 12:36:20 PM

Invalid temperature value 37.0°C for X3G-AU-TAA0372A: Target temperature must be between 1°C and 37°C

Steps to reproduce

1. Add a Dyson heat/cool purifier as second heat source for room
2. Set temperature target to a value that would activate heating in the room
3. Both main HVAC and Dyson will come on in heating mode.
4. Dyson integration will log an error indicating that the target temperature of 37C is invalid. The target temperature in the Dyson unit will not change.

Diagnostics

No response

Relevant log output