edit: on a whim, I unplugged it and plugged it back in and it’s working now. I did try killing power before and that didn’t work. I think it was not plugged in all of the way…
Brand: MRCOOL
Model ID: DIY-24-HP-WMAH-230C25
Year: 2022
Market: US
It is not working currently. My esp is getting power from the mini-split and is connecting to my home assistant server. But, it’s not able to communicate with the mini-split. The ESPHome log for the device looks like the following in an infinite loop:
21:25:49 [D] [ApplianceBase:139]
Response timeout...
21:25:49 [D] [ApplianceBase:154]
Destroying the request...
21:25:49 [D] [AirConditioner:178]
Enqueuing a GET_STATUS(0x41) request...
21:25:49 [D] [ApplianceBase:173]
Enqueuing the request...
21:25:49 [D] [ApplianceBase:075]
Getting and sending a request from the queue...
21:25:50 [D] [ApplianceBase:162]
TX: AA 21 AC 8D 00 00 00 00 00 03 41 81 00 FF 03 FF 00 02 00 00 00 00 00 00 00 00 00 00 00 00 03 E9 42 B0
21:25:51 [D] [ApplianceBase:139]
Response timeout...
21:25:51 [D] [ApplianceBase:146]
Sending request again. Attempts left: 2...
21:25:51 [D] [ApplianceBase:162]
TX: AA 21 AC 8D 00 00 00 00 00 03 41 81 00 FF 03 FF 00 02 00 00 00 00 00 00 00 00 00 00 00 00 03 E9 42 B0
21:25:53 [D] [ApplianceBase:139]
Response timeout...
21:25:53 [D] [ApplianceBase:146]
Sending request again. Attempts left: 1...
21:25:53 [D] [ApplianceBase:162]
TX: AA 21 AC 8D 00 00 00 00 00 03 41 81 00 FF 03 FF 00 02 00 00 00 00 00 00 00 00 00 00 00 00 03 E9 42 B0
21:25:55 [D] [ApplianceBase:139]
Response timeout...
21:25:55 [D] [ApplianceBase:154]
Destroying the request...
21:25:55 [D] [AirConditioner:178]
Enqueuing a GET_STATUS(0x41) request...
21:25:55 [D] [ApplianceBase:173]
Enqueuing the request...
21:25:55 [D] [ApplianceBase:075]
Getting and sending a request from the queue...
21:25:56 [D] [ApplianceBase:162]
TX: AA 21 AC 8D 00 00 00 00 00 03 41 81 00 FF 03 FF 00 02 00 00 00 00 00 00 00 00 00 00 00 00 03 EA A0 51
21:25:57 [D] [ApplianceBase:139]
Response timeout...
21:25:57 [D] [ApplianceBase:146]
Sending request again. Attempts left: 2...
21:25:57 [D] [ApplianceBase:162]
TX: AA 21 AC 8D 00 00 00 00 00 03 41 81 00 FF 03 FF 00 02 00 00 00 00 00 00 00 00 00 00 00 00 03 EA A0 51
21:25:58 [D] [AirConditioner:132]
Enqueuing a GET_POWERUSAGE(0x41) request...
21:25:58 [D] [ApplianceBase:173]
Enqueuing the request...
The yaml configuration looks like this:
esphome:
name: garage-mini-split
platform: ESP8266
board: esp12e
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Garage-Mini-Split"
password: "REDACTED"
captive_portal:
# Enable logging
logger:
baud_rate: 0
# Enable Home Assistant API
api:
encryption:
key: "REDACTED"
ota:
password: "REDACTED"
uart:
tx_pin: 1
rx_pin: 3
baud_rate: 9600
climate:
- platform: midea
name: Garage Mini Split # Use a unique name.
period: 1s # Optional
timeout: 2s # Optional
num_attempts: 3 # Optional
autoconf: true # Autoconfigure most options.
beeper: true # Beep on commands.
visual: # Optional. Example of visual settings override.
min_temperature: 17 °C # min: 17
max_temperature: 30 °C # max: 30
temperature_step: 0.5 °C # min: 0.5
supported_modes: # All capabilities in this section detected by autoconf.
- FAN_ONLY # This capability is always used.
- HEAT_COOL
- COOL
- HEAT
- DRY
custom_fan_modes:
- SILENT
- TURBO
supported_presets: # All capabilities in this section detected by autoconf.
- ECO
- BOOST
- SLEEP # This capability is always used.
custom_presets: # All capabilities in this section detected by autoconf.
- FREEZE_PROTECTION
supported_swing_modes:
- VERTICAL # This capability is always used.
- HORIZONTAL
- BOTH
outdoor_temperature: # Optional. Outdoor temperature sensor (may display incorrect values after long inactivity).
name: Temp
power_usage: # Optional. Power usage sensor (only for devices that support this feature).
name: Power
humidity_setpoint: # Optional. Indoor humidity sensor (only for devices that support this feature).
name: Humidity
web_server:
port: 80
I have a feeling that since it’s a new model then the confirmed to work ones on this list; they might have blocked this or something… Another thing that may be of note, is that I used the dongle that came with it at first. So, maybe it received a firmware update if it would have even worked in the first place.