A. O. Smith
A. O. Smith ATHR-199X3 ADAPT tankless
Thermostats · Climate
RequestedCloud
1 report: 1 asks for support.
Reported with 1 integration: A. O. Smith.
What people report
| Integration | In Home Assistant | In Apple Home | What they said | Source |
|---|---|---|---|---|
| A. O. Smith | Requested Cloud | Not discovered; tankless 'Mustang' type unsupported, community custom integration existsSaved copyThe problem The A.O. Smith integration authenticates successfully with my account but does not discover my water heater device. The integration shows my account email as a connected hub, but no devices appear underneath it. The water heater is fully connected to Wi-Fi and is visible and controllable in the official A.O. Smith mobile app. This appears to be because the ATHR-199X3 model is not yet supported by the iCOMM cloud API that the integration uses. ### What version of Home Assistant Core has the issue? core-2026.4.3 ### What was the last working version of Home Assistant Core? _No … Excerpt saved from GitHub on 2026-10-23. | Issue #168470 · 2026-04 |
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.
Identifiers
| Brand | A. O. Smith |
|---|---|
| Model | ATHR-199X3 |
| Category | Thermostats |