Water heater 510003B6 always sets max_temp on set_temperature command

[UserArtem]

Model: Electric Water Heater 510003B6
Integration version: midea_ac_lan v0.6.10
Home Assistant setup: Docker mode
Entity ID: water_heater.153931629062998_water_heater

Behavior description

• With "old_protocol": false → any water_heater.set_temperature call sets the target temperature to the maximum (75 °C).
• With "old_protocol": true → the device briefly jumps to the maximum (75 °C) and then reverts back to the previous temperature.
• Reading works perfectly: temperature, target_temperature, and current_temperature are updated correctly and match the actual value shown in the Midea app.

Expected behavior

The water_heater.set_temperature service should correctly apply the requested temperature (e.g., 41 °C).

Actual behavior

The device always applies max_temp (75 °C) or reverts to its previous value immediately.

Additional info

• Tested on Home Assistant (Docker)
• Connected via LAN
• Temperature can be changed correctly from the Midea mobile app
• Other attributes (power, heating, keep_warm, whole_tank_heating, etc.) work fine through midea_ac_lan.set_attribute

[GioMac]

same for me, wasn't that way
have two 5100043D's