This is debug logs about Gree AC :
2024-07-01 21:12:32.517 INFO (MainThread) [homeassistant.components.climate] Setting up gree.climate
2024-07-01 21:12:32.518 INFO (MainThread) [custom_components.gree.climate] Setting up Gree climate platform
2024-07-01 21:12:32.518 INFO (MainThread) [custom_components.gree.climate] Adding Gree climate device to hass
2024-07-01 21:12:32.518 INFO (MainThread) [custom_components.gree.climate] Initialize the GREE climate device
2024-07-01 21:12:32.518 INFO (MainThread) [custom_components.gree.climate] Setting up temperature sensor: sensor.t_h_openspace_temperature
2024-07-01 21:12:32.518 INFO (MainThread) [custom_components.gree.climate] Setting up lights entity: input_boolean.gree_ac_lights
2024-07-01 21:12:32.518 INFO (MainThread) [custom_components.gree.climate] Setting up xfan entity: input_boolean.gree_ac_xfan
2024-07-01 21:12:32.518 INFO (MainThread) [custom_components.gree.climate] Setting up health entity: input_boolean.gree_ac_health
2024-07-01 21:12:32.518 INFO (MainThread) [custom_components.gree.climate] Setting up powersave entity: input_boolean.gree_ac_powersave
2024-07-01 21:12:32.518 INFO (MainThread) [custom_components.gree.climate] Setting up sleep entity: input_boolean.gree_ac_sleep
2024-07-01 21:12:32.519 INFO (MainThread) [custom_components.gree.climate] name(): Gree AC
2024-07-01 21:12:32.519 INFO (MainThread) [custom_components.gree.climate] name(): Gree AC
2024-07-01 21:12:32.519 INFO (MainThread) [custom_components.gree.climate] supported_features(): 441
2024-07-01 21:12:32.519 INFO (MainThread) [custom_components.gree.climate] temperature_unit(): °C
2024-07-01 21:12:32.519 INFO (MainThread) [custom_components.gree.climate] hvac_modes(): [<HVACMode.AUTO: 'auto'>, <HVACMode.COOL: 'cool'>, <HVACMode.DRY: 'dry'>, <HVACMode.FAN_ONLY: 'fan_only'>, <HVACMode.HEAT: 'heat'>, <HVACMode.OFF: 'off'>]
2024-07-01 21:12:32.519 INFO (MainThread) [custom_components.gree.climate] min_temp(): 16
2024-07-01 21:12:32.519 INFO (MainThread) [custom_components.gree.climate] max_temp(): 30
2024-07-01 21:12:32.520 INFO (MainThread) [custom_components.gree.climate] target_temperature_step(): 1.0
2024-07-01 21:12:32.520 INFO (MainThread) [custom_components.gree.climate] fan_list(): ['Auto', 'Low', 'Medium-Low', 'Medium', 'Medium-High', 'High', 'Turbo', 'Quiet']
2024-07-01 21:12:32.520 INFO (MainThread) [custom_components.gree.climate] swing_modes(): ['Default', 'Swing in full range', 'Fixed in the upmost position', 'Fixed in the middle-up position', 'Fixed in the middle position', 'Fixed in the middle-low position', 'Fixed in the lowest position', 'Swing in the downmost region', 'Swing in the middle-low region', 'Swing in the middle region', 'Swing in the middle-up region', 'Swing in the upmost region']
2024-07-01 21:12:32.520 INFO (MainThread) [custom_components.gree.climate] supported_features(): 441
2024-07-01 21:12:32.520 INFO (MainThread) [custom_components.gree.climate] Gree climate device added to hass()
2024-07-01 21:12:32.520 INFO (MainThread) [custom_components.gree.climate] update()
2024-07-01 21:12:32.520 INFO (MainThread) [custom_components.gree.climate] Retrieving HVAC encryption key
2024-07-01 21:12:32.528 INFO (MainThread) [custom_components.gree.climate] Fetching(192.168.1.199, 7000, 10, {"cid": "app","i": 1,"pack": "TxaBrFw9esre/YnXrOF97G1J9e37l7ERT00WUeFyiY+j9mrs/0p7GUTdWxmNaBUt","t":"pack","tcid":"9424b8f2c81d","uid": 0})
2024-07-01 21:12:42.545 INFO (MainThread) [custom_components.gree.climate] Error getting device encryption key!
2024-07-01 21:12:42.545 INFO (MainThread) [custom_components.gree.climate] supported_features(): 441
2024-07-01 21:12:42.546 INFO (MainThread) [custom_components.gree.climate] temperature_unit(): °C
2024-07-01 21:12:42.546 INFO (MainThread) [custom_components.gree.climate] hvac_modes(): [<HVACMode.AUTO: 'auto'>, <HVACMode.COOL: 'cool'>, <HVACMode.DRY: 'dry'>, <HVACMode.FAN_ONLY: 'fan_only'>, <HVACMode.HEAT: 'heat'>, <HVACMode.OFF: 'off'>]
2024-07-01 21:12:42.546 INFO (MainThread) [custom_components.gree.climate] min_temp(): 16
2024-07-01 21:12:42.546 INFO (MainThread) [custom_components.gree.climate] max_temp(): 30
2024-07-01 21:12:42.546 INFO (MainThread) [custom_components.gree.climate] target_temperature_step(): 1.0
2024-07-01 21:12:42.546 INFO (MainThread) [custom_components.gree.climate] fan_list(): ['Auto', 'Low', 'Medium-Low', 'Medium', 'Medium-High', 'High', 'Turbo', 'Quiet']
2024-07-01 21:12:42.546 INFO (MainThread) [custom_components.gree.climate] swing_modes(): ['Default', 'Swing in full range', 'Fixed in the upmost position', 'Fixed in the middle-up position', 'Fixed in the middle position', 'Fixed in the middle-low position', 'Fixed in the lowest position', 'Swing in the downmost region', 'Swing in the middle-low region', 'Swing in the middle region', 'Swing in the middle-up region', 'Swing in the upmost region']
2024-07-01 21:12:42.547 INFO (MainThread) [custom_components.gree.climate] available(): Device is offline
2024-07-01 21:12:42.547 INFO (MainThread) [custom_components.gree.climate] name(): Gree AC
2024-07-01 21:12:42.547 INFO (MainThread) [custom_components.gree.climate] supported_features(): 441
2024-07-01 21:12:42.547 INFO (MainThread) [custom_components.gree.climate] should_poll()
2024-07-01 21:12:57.394 INFO (MainThread) [custom_components.gree.climate] temp_sensor state changed | sensor.t_h_openspace_temperature from None to unavailable
2024-07-01 21:12:57.395 INFO (MainThread) [custom_components.gree.climate] Thermostat updated with changed temp_sensor state | unavailable
2024-07-01 21:12:57.395 INFO (MainThread) [custom_components.gree.climate] Current state temp_sensor: unavailable
2024-07-01 21:12:57.395 INFO (MainThread) [custom_components.gree.climate] temp_sensor state represents_float |unavailable
2024-07-01 21:12:57.399 INFO (MainThread) [homeassistant.components.mqtt.discovery] Found new component: sensor 0x00158d0009439622 humidity from external application Zigbee2MQTT, version: 1.38.0, support URL: https://www.zigbee2mqtt.io
2024-07-01 21:12:57.403 INFO (SyncWorker_28) [custom_components.gree.climate] update()
2024-07-01 21:12:57.403 INFO (SyncWorker_28) [custom_components.gree.climate] Retrieving HVAC encryption key
2024-07-01 21:12:57.403 INFO (SyncWorker_28) [custom_components.gree.climate] Fetching(192.168.1.199, 7000, 10, {"cid": "app","i": 1,"pack": "TxaBrFw9esre/YnXrOF97G1J9e37l7ERT00WUeFyiY+j9mrs/0p7GUTdWxmNaBUt","t":"pack","tcid":"9424b8f2c81d","uid": 0})
2024-07-01 21:13:02.229 INFO (MainThread) [custom_components.gree.climate] temp_sensor state changed | sensor.t_h_openspace_temperature from unavailable to unknown
2024-07-01 21:13:02.229 INFO (MainThread) [custom_components.gree.climate] Thermostat updated with changed temp_sensor state | unknown
2024-07-01 21:13:02.229 INFO (MainThread) [custom_components.gree.climate] Current state temp_sensor: unknown
2024-07-01 21:13:02.229 INFO (MainThread) [custom_components.gree.climate] temp_sensor state represents_float |unknown
2024-07-01 21:13:02.234 INFO (MainThread) [custom_components.gree.climate] supported_features(): 441
2024-07-01 21:13:02.234 INFO (MainThread) [custom_components.gree.climate] temperature_unit(): °C
2024-07-01 21:13:02.234 INFO (MainThread) [custom_components.gree.climate] hvac_modes(): [<HVACMode.AUTO: 'auto'>, <HVACMode.COOL: 'cool'>, <HVACMode.DRY: 'dry'>, <HVACMode.FAN_ONLY: 'fan_only'>, <HVACMode.HEAT: 'heat'>, <HVACMode.OFF: 'off'>]
2024-07-01 21:13:02.234 INFO (MainThread) [custom_components.gree.climate] min_temp(): 16
2024-07-01 21:13:02.234 INFO (MainThread) [custom_components.gree.climate] max_temp(): 30
2024-07-01 21:13:02.234 INFO (MainThread) [custom_components.gree.climate] target_temperature_step(): 1.0
2024-07-01 21:13:02.235 INFO (MainThread) [custom_components.gree.climate] fan_list(): ['Auto', 'Low', 'Medium-Low', 'Medium', 'Medium-High', 'High', 'Turbo', 'Quiet']
2024-07-01 21:13:02.235 INFO (MainThread) [custom_components.gree.climate] swing_modes(): ['Default', 'Swing in full range', 'Fixed in the upmost position', 'Fixed in the middle-up position', 'Fixed in the middle position', 'Fixed in the middle-low position', 'Fixed in the lowest position', 'Swing in the downmost region', 'Swing in the middle-low region', 'Swing in the middle region', 'Swing in the middle-up region', 'Swing in the upmost region']
2024-07-01 21:13:02.235 INFO (MainThread) [custom_components.gree.climate] available(): Device is offline
2024-07-01 21:13:02.235 INFO (MainThread) [custom_components.gree.climate] name(): Gree AC
2024-07-01 21:13:02.235 INFO (MainThread) [custom_components.gree.climate] supported_features(): 441
2024-07-01 21:13:17.639 WARNING (MainThread) [homeassistant.components.homekit] Cannot add climate.gree_ac as this would exceed the 150 device limit. Consider using the filter option
2024-07-01 21:13:42.549 INFO (MainThread) [custom_components.gree.climate] should_poll()
2024-07-01 21:13:42.551 INFO (SyncWorker_14) [custom_components.gree.climate] update()
2024-07-01 21:13:42.551 INFO (SyncWorker_14) [custom_components.gree.climate] Retrieving HVAC encryption key
2024-07-01 21:13:42.554 INFO (SyncWorker_14) [custom_components.gree.climate] Fetching(192.168.1.199, 7000, 10, {"cid": "app","i": 1,"pack": "TxaBrFw9esre/YnXrOF97G1J9e37l7ERT00WUeFyiY+j9mrs/0p7GUTdWxmNaBUt","t":"pack","tcid":"9424b8f2c81d","uid": 0})
2024-07-01 21:13:52.565 INFO (SyncWorker_14) [custom_components.gree.climate] Error getting device encryption key!
2024-07-01 21:13:52.568 INFO (MainThread) [custom_components.gree.climate] supported_features(): 441
2024-07-01 21:13:52.568 INFO (MainThread) [custom_components.gree.climate] temperature_unit(): °C
2024-07-01 21:13:52.569 INFO (MainThread) [custom_components.gree.climate] hvac_modes(): [<HVACMode.AUTO: 'auto'>, <HVACMode.COOL: 'cool'>, <HVACMode.DRY: 'dry'>, <HVACMode.FAN_ONLY: 'fan_only'>, <HVACMode.HEAT: 'heat'>, <HVACMode.OFF: 'off'>]
2024-07-01 21:13:52.569 INFO (MainThread) [custom_components.gree.climate] min_temp(): 16
2024-07-01 21:13:52.569 INFO (MainThread) [custom_components.gree.climate] max_temp(): 30
2024-07-01 21:13:52.569 INFO (MainThread) [custom_components.gree.climate] target_temperature_step(): 1.0
2024-07-01 21:13:52.570 INFO (MainThread) [custom_components.gree.climate] fan_list(): ['Auto', 'Low', 'Medium-Low', 'Medium', 'Medium-High', 'High', 'Turbo', 'Quiet']
2024-07-01 21:13:52.570 INFO (MainThread) [custom_components.gree.climate] swing_modes(): ['Default', 'Swing in full range', 'Fixed in the upmost position', 'Fixed in the middle-up position', 'Fixed in the middle position', 'Fixed in the middle-low position', 'Fixed in the lowest position', 'Swing in the downmost region', 'Swing in the middle-low region', 'Swing in the middle region', 'Swing in the middle-up region', 'Swing in the upmost region']
2024-07-01 21:13:52.570 INFO (MainThread) [custom_components.gree.climate] available(): Device is offline
2024-07-01 21:13:52.570 INFO (MainThread) [custom_components.gree.climate] name(): Gree AC
2024-07-01 21:13:52.571 INFO (MainThread) [custom_components.gree.climate] supported_features(): 441
2024-07-01 21:13:53.788 INFO (MainThread) [custom_components.gree.climate] temp_sensor state changed | sensor.t_h_openspace_temperature from unknown to 26.1
2024-07-01 21:13:53.789 INFO (MainThread) [custom_components.gree.climate] Thermostat updated with changed temp_sensor state | 26.1
2024-07-01 21:13:53.789 INFO (MainThread) [custom_components.gree.climate] Current state temp_sensor: 26.1
2024-07-01 21:13:53.789 INFO (MainThread) [custom_components.gree.climate] temp_sensor state represents_float |26.1
2024-07-01 21:13:53.789 INFO (MainThread) [custom_components.gree.climate] Current temp: 26.1
2024-07-01 21:13:53.839 INFO (SyncWorker_61) [custom_components.gree.climate] update()
2024-07-01 21:13:53.840 INFO (SyncWorker_61) [custom_components.gree.climate] Retrieving HVAC encryption key
Maybe is the Encryption Key the problem?