Skip to content
Home Assistant TestFlight
Alpha Innotec

Alpha Innotec LW 150H-A

Thermostats · Climate

Not workingLocal

1 report: 1 says it doesn’t work.

Reported with 1 integration: Luxtronik.

What people report

IntegrationIn Home AssistantIn Apple HomeWhat they saidSource
LuxtronikNot working LocalFirmware V2.40 gives unpack buffer error; not planned
Saved copy
… the "unpack requires a buffer of 4 bytes" error. I've done extensive debugging and believe it's a firmware incompatibility. My Setup: * Heat Pump Model: Alpha Innotec LW 150H-A * Luxtronik Firmware Version: V2.40 * Home Assistant Version: 2024.10.4 * Home Assistant Operating System: 12.1 * Luxtronik Integration Version: 2024.9.30 Debugging Steps & Findings: 1. Connection Works: `curl -v telnet://10.0.0.3:8889` confirms a successful TCP connection. 2. UI Error: The Home Assistant UI shows `unpack requires a buffer of 4 bytes`. 3. No Error in Logs: Even with debug logging enabled for …

Excerpt saved from GitHub on 2026-10-23.

Issue #365 · 2025-07

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

BrandAlpha Innotec
ModelLW 150H-A
CategoryThermostats