Always turn on Cool, regardless of last mode and doesn't revert to mode if HASS is restarted, not turn off when HASS shuts down about ha-dual-smart-thermostat HOT 6 CLOSED

If you set the initial_hvac_mode, the thermostat will activate that mode after startup or restart.
You can just remove that from your config as the thermostat should remember the last used HVAC mode.

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same doubt for me;
In this period, since I'm not having time to properly fix the dual mode, I set my thermostat:

heat_cool_mode: false 
keep_alive: 
  minutes: 2
initial_hvac_mode: "cool" 
ac_mode: true

it works correctly but if I turn off the climate and restart the HA, the thermostat resets ON to Cool mode.

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@kabongsteve . Could you please post your current failing configuration? Tx.

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climate:

• platform: dual_smart_thermostat
  unique_id: aircon
  name: AirCon
  heater: input_boolean.dummy_heat
  cooler: input_boolean.dummy_cool
  target_sensor: sensor.kitchen_temp
  min_temp: 18
  max_temp: 25
  ac_mode: true
  cold_tolerance: 0.2
  hot_tolerance: 0.2
  min_cycle_duration:
  seconds: 120
  initial_hvac_mode: "off"
  precision: 0.1
  target_temp_step: 0.1

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I did as suggested and removed "initil_hvac_mode"

Unfortunately, it still restarts in "cold" mode

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I tried to reproduce the issue but it works on my end just fine if I remove the initil_hvac_mode setting.

Could you try to create a new config with a new unique_id and see if that works?

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