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In a multi-split setup (subMAC@gatewayMAC), all indoor units share the same device_info identifier (the gateway MAC). HA treats them as entities of one single device, so assigning the device to an area moves all units together — it is impossible to put each unit in its own room. The same bug affects unique_id in GreeEntity, which also used the gateway MAC, causing entity conflicts across units. Fix: use _sub_mac_addr (the indoor unit MAC) as the device identifier and unique_id base in both climate.py and entity.py. Each indoor unit now registers as its own independent HA device and can be assigned to a different area individually. Note: after deploying this fix, delete the old shared ghost device that HA will leave behind in Settings > Devices.
Owner
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Looking for people who can test this one (I don't have this feature) |
RobHofmann
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to test
This was referenced Sep 18, 2026
Contributor
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@RobHofmann I can confirm this one works. Tested on a Gree GR-Gcloud VRF gateway fronting 4 indoor units (v1/ECB, current HA stable): after applying it, each indoor unit shows up as its own HA device and can be assigned to a separate area independently. No issues found — good to merge from my side. @ItayGo thanks for this fix! I've built two related VRF PRs on top of the same setup — #507 (reliable discovery of all sub-units) and #508 (stops commands bouncing back on stale gateway reads + hides switches the units don't implement). If you have a moment, would you be willing to test them on your VRF gateway too? Extra confirmation on real hardware would help them land. |
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Problem
For Gree multi-split VRF gateways (one WiFi module controlling multiple indoor units, e.g.
GR-Gcloud), all indoor units were grouped under a single shared HA device. This made it impossible to assign individual units to different rooms/areas.Root cause:
device_infoused_mac_addr(the gateway MAC, shared by all sub-units) instead of_sub_mac_addr(the unique per-unit sub-MAC).This is a continuation of #338, which fixed
unique_idinclimate.pyto use_sub_mac_addrbut leftdevice_infoinclimate.pyand bothunique_id+device_infoinentity.pystill using the gateway MAC.Changes
climate.py:device_infoidentifiers now useself._sub_mac_addrinstead ofself._mac_addrentity.py: both_attr_unique_idanddevice_infoidentifiers now useself._device._sub_mac_addrResult
Each VRF indoor unit appears as its own separate HA device and can be assigned to its own room/area independently.
Migration note for existing users
If you already have a multi-split VRF setup configured, after updating you will see a lingering ghost shared device (the old combined device with the gateway MAC). HA will keep it around because it was previously in your device registry.
To clean it up: go to Settings → Devices & Services → Devices, find the old shared Gree device (it will have no active entities), and delete it. The 5 individual devices will remain unaffected.
Tested on
GR-Gcloudtype) with 5 indoor units, sub-MACs insubMAC@gatewayMACformat