removing "target_temp_high" and/or "target_temp_low" from config removes "heat_cool" mode as well about ha-dual-smart-thermostat HOT 6 CLOSED

I get a warning of "Undefined target temperature, falling back to " every time HA restarts. I want it to remember the last min and max temps and just use them! In heat/cool mode, the SINGLE target temp should not be necessary either.

I am adding additional logic to store those values and persist across restarts. I really hope they can be handled by the integration someday soon. I am happy to help gather information and run experiments if that is helpful to diagnose and fix.

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For heat-cool mode
you need to set either:

heat_cool_mode: true

or

target_temp_low: ...
target_temp_high: ...

from ha-dual-smart-thermostat.

@swingerman Thanks for reaching back out.
I have tried using heat_cool_mode: true (see this issue),
but it causes an error.

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@swingerman thank you - it does work if I set "heat_cool_mode: true", not sure how I missed that earlier. thank you.

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@paulius2k Would you share your final working config? I am not sure why mine is causing that error,
and last time I looked into this, I tried every combination I could think of...

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@mathmaniac43 - here is my working config:

  - platform: dual_smart_thermostat
    name: Test Fake Thermostat
    heater: switch.fake_thermostat_switch_heat_gpio27
    cooler: switch.fake_thermostat_switch_cool_gpio27
    target_sensor: sensor.sonoff_zb_temp1_temperature
    openings:
      - binary_sensor.sonoff_zb_ds2_ias_zone
    min_temp: 10
    max_temp: 28
    ac_mode: false # this parameter will be ignored if cooler entity is defined.
    heat_cool_mode: true
    cold_tolerance: 0.3
    hot_tolerance: 0
    min_cycle_duration:
      seconds: 1
    keep_alive:
      minutes: 3
    initial_hvac_mode: "heat_cool" # hvac mode will reset to this value after restart
    away: # this preset will be available for all hvac modes
      temperature: 15
      target_temp_low: 14
      target_temp_high: 16
    home: # this preset will be available only for heat or cool hvac mode
      temperature: 21
    precision: 0.1
    target_temp_step: 0.5

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