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Home Assistant TestFlight
Bosch Radiator Thermostat II
Bosch

Bosch Radiator Thermostat II

Thermostats · Climate

Partly worksApple Home issuesLocal

1 report: 1 says it partly works.

Reported with 1 integration: MQTT.

What people report

IntegrationIn Home AssistantIn Apple HomeWhat they saidSource
MQTTPartly works LocalPartly in Home
Invalid HVAC mode errors on restart via bridge
Same error as Aqara E1 reported
Saved copy
I too seem to face this issue. My setup is similar, differs only in the Thermostat. In my case that’s a BOSCH Radiator thermostat II.

Excerpt saved from GitHub on 2026-10-23.

Issue #105801 · 2023-12

Each row is one report from a GitHub thread, an integration’s docs, or r/homeassistant. Check the date and the linked source before you buy.

In ReReHome

Once Home Assistant’s HomeKit Bridge shares it, this device reaches Apple Home as a HomeKit accessory behind your Home Assistant bridge, so ReReHome shows and controls it like any other.

This model is also in the ReReHome accessory catalog as Bosch Smart Home Radiator Thermostat II.

Identifiers

BrandBosch
ModelRadiator Thermostat II
CategoryThermostats