Hey everyone,
Today it was a bit cold, so I tried turning on the heating mode of my Haier air conditioner.
The last time I remember it working fine was last weekend.
Unfortunately, it’s now not responding at all. The only thing I changed recently was running an “Update All” in the ESPHome dashboard earlier this week.
What I’ve tried so far (based on what I found online)
- Rebuilt and reflashed the S3-Mini
- Power-cycled the air conditioner
- Switched from Arduino to esp-idf framework
- Tried the 2025.10.2 UART component (since 10.3 seems to have UART issues)
Question
Does anyone know what might be causing the
Answer timeout for command 61, phase SENDING_INIT_1
and
Frame parsing error: 9
messages after the update?
Could this be a UART regression, timing change, or something related to the protocol initialization?
Any next troubleshooting advice is welcome!
I’m happy to try different builds, frameworks, or debug settings if it helps narrow this down.
Thanks in advance for any ideas or insights! 
YAML configuration
INFO ESPHome 2025.10.3
INFO Reading configuration /config/esphome/woonkamerairco32.yaml...
INFO Detected log level for Haier protocol: DEBUG
INFO Starting log output from woonkamerairco32.local using esphome API
INFO Successfully resolved woonkamerairco32.local in 0.302s
INFO Successfully connected to woonkamerairco32 @ 172.16.1.204 in 0.003s
INFO Successful handshake with woonkamerairco32 @ 172.16.1.204 in 0.138s
[12:54:43.639][I][app:185]: ESPHome version 2025.10.3 compiled on Oct 26 2025, 11:15:01
[12:54:43.639][C][wifi:679]: WiFi:
[12:54:43.639][C][wifi:458]: Local MAC: 64:E8:33:84:F3:FC
[12:54:43.639][C][wifi:465]: IP Address: 172.16.1.204
[12:54:43.641][C][wifi:469]: SSID: [redacted]
[12:54:43.641][C][wifi:469]: BSSID: [redacted]
[12:54:43.641][C][wifi:469]: Hostname: 'woonkamerairco32'
[12:54:43.641][C][wifi:469]: Signal strength: -56 dB ▂▄▆█
[12:54:43.641][C][wifi:469]: Channel: 11
[12:54:43.641][C][wifi:469]: Subnet: 255.255.255.0
[12:54:43.641][C][wifi:469]: Gateway: 172.16.1.1
[12:54:43.641][C][wifi:469]: DNS1: 172.16.1.1
[12:54:43.641][C][wifi:469]: DNS2: 0.0.0.0
[12:54:43.643][C][logger:261]: Logger:
[12:54:43.643][C][logger:261]: Max Level: DEBUG
[12:54:43.643][C][logger:261]: Initial Level: DEBUG
[12:54:43.643][C][logger:267]: Log Baud Rate: 115200
[12:54:43.643][C][logger:267]: Hardware UART: USB_SERIAL_JTAG
[12:54:43.645][C][logger:274]: Task Log Buffer Size: 768
[12:54:43.661][C][uart.idf:180]: UART Bus 0:
[12:54:43.665][C][uart.idf:181]: TX Pin: GPIO21
[12:54:43.665][C][uart.idf:182]: RX Pin: GPIO20
[12:54:43.665][C][uart.idf:185]: RX Buffer Size: 256
[12:54:43.665][C][uart.idf:185]: RX Full Threshold: 8
[12:54:43.665][C][uart.idf:185]: RX Timeout: 2
[12:54:43.665][C][uart.idf:191]: Baud Rate: 9600 baud
[12:54:43.665][C][uart.idf:191]: Data Bits: 8
[12:54:43.665][C][uart.idf:191]: Parity: NONE
[12:54:43.665][C][uart.idf:191]: Stop bits: 1
[12:54:43.679][C][haier.climate:255]: Haier Climate 'Climate'
[12:54:43.706][C][haier.climate:256]: Device communication status: none
[12:54:43.706][C][haier.climate:342]: Protocol version: hOn
[12:54:43.706][C][haier.climate:342]: Control method: 1
[12:54:43.706][C][template.select:064]: Template Select 'Airflow vertical'
[12:54:43.706][C][template.select:064]: Icon: 'mdi:arrow-expand-vertical'
[12:54:43.706][C][template.select:362]: Update Interval: 5.0s
[12:54:43.706][C][template.select:064]: Template Select 'Airflow horizontal'
[12:54:43.706][C][template.select:064]: Icon: 'mdi:arrow-expand-horizontal'
[12:54:43.707][C][template.select:362]: Update Interval: 5.0s
[12:54:43.740][C][captive_portal:116]: Captive Portal:
[12:54:43.743][C][esphome.ota:093]: Over-The-Air updates:
[12:54:43.743][C][esphome.ota:093]: Address: woonkamerairco32.local:3232
[12:54:43.743][C][esphome.ota:093]: Version: 2
[12:54:43.743][C][esphome.ota:100]: Password configured
[12:54:43.759][C][safe_mode:018]: Safe Mode:
[12:54:43.759][C][safe_mode:018]: Successful after: 60s
[12:54:43.759][C][safe_mode:018]: Invoke after: 10 attempts
[12:54:43.759][C][safe_mode:018]: Duration: 300s
[12:54:43.762][C][web_server.ota:241]: Web Server OTA
[12:54:43.779][C][api:222]: Server:
[12:54:43.779][C][api:222]: Address: woonkamerairco32.local:6053
[12:54:43.779][C][api:222]: Listen backlog: 4
[12:54:43.779][C][api:222]: Max connections: 8
[12:54:43.779][C][api:229]: Noise encryption: YES
[12:54:43.782][C][mdns:179]: mDNS:
[12:54:43.782][C][mdns:179]: Hostname: woonkamerairco32
[12:54:46.020][D][select:015]: 'Airflow horizontal': Sending state Center (index 2)
[12:54:46.448][D][haier.protocol:019]: Sending frame: type 61, data: 00 07
[12:54:46.451][D][uart_debug:158]: >>> "\xFF\xFF\n"
[12:54:46.479][D][uart_debug:158]: >>> "\x00\x00\x00\x00\x00\x00a\x00\ar"
[12:54:46.509][W][haier.protocol:013]: Frame parsing error: 9
[12:54:46.631][D][uart_debug:158]: <<< "\xFF\xFF.@\x00\x00\x00\x00\x00bE++2.18\x0017062600\xF1\x00\x0017052600\x01U-AC\x00\x00\x00\x00\x00\x04[\x8A\xAB"
[12:54:46.658][W][haier.climate:234]: Answer timeout for command 61, phase SENDING_INIT_1
[12:54:46.673][D][select:015]: 'Airflow vertical': Sending state Center (index 3)
[12:54:51.022][D][select:015]: 'Airflow horizontal': Sending state Center (index 2)
[12:54:51.676][D][select:015]: 'Airflow vertical': Sending state Center (index 3)
[12:54:56.025][D][select:015]: 'Airflow horizontal': Sending state Center (index 2)
[12:54:56.458][D][haier.protocol:019]: Sending frame: type 61, data: 00 07
[12:54:56.461][D][uart_debug:158]: >>> "\xFF\xFF\n"
[12:54:56.486][D][uart_debug:158]: >>> "\x00\x00\x00\x00\x00\x00a\x00\ar"
[12:54:56.518][W][haier.protocol:013]: Frame parsing error: 9
[12:54:56.637][D][uart_debug:158]: <<< "\xFF\xFF.@\x00\x00\x00\x00\x00bE++2.18\x0017062600\xF1\x00\x0017052600\x01U-AC\x00\x00\x00\x00\x00\x04[\x8A\xAB"
[12:54:56.664][W][haier.climate:234]: Answer timeout for command 61, phase SENDING_INIT_1
[12:54:56.676][D][select:015]: 'Airflow vertical': Sending state Center (index 3)
Logs
esphome:
name: woonkamerairco32
friendly_name: WoonkamerAirco32
esp32:
board: esp32-c3-devkitm-1
framework:
type: arduino
# Enable logging
logger:
ota:
- platform: esphome
password: "xxxxxxxxxxxxxx"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Woonkamerairco32"
password: "xxxxxxxxxxxxxx"
#10.3 has issues with UART, for now use 2025.10.2
external_components:
- source: github://esphome/[email protected]
components: [uart]
refresh: 1h
captive_portal:
uart:
id: haier_uart
tx_pin:
number: GPIO21
rx_pin:
number: GPIO20
baud_rate: 9600
debug:
direction: BOTH
dummy_receiver: true
after:
delimiter: "\n"
sequence:
- lambda: |-
UARTDebug::log_string(direction, bytes);
api:
encryption:
key: "xxxxxxxxxxxxxx"
services:
- service: turn_on
then:
- climate.haier.power_on: haier_ac
- service: turn_off
then:
- climate.haier.power_off: haier_ac
climate:
- platform: haier
id: haier_ac
protocol: hon
name: Climate
uart_id: haier_uart
wifi_signal: true
visual:
min_temperature: 16 °C
max_temperature: 30 °C
temperature_step:
target_temperature: 1
current_temperature: 0.5
supported_modes:
- 'OFF'
- HEAT_COOL
- COOL
- HEAT
- DRY
- FAN_ONLY
supported_swing_modes:
- 'OFF'
- VERTICAL
- HORIZONTAL
- BOTH
supported_presets:
- BOOST
- SLEEP
on_alarm_start:
then:
- homeassistant.service:
service: logbook.log
data:
domain: climate
name: Climate
data_template:
message: "Alarm activated ({{ alarm_code }}): {{alarm_message}}"
variables:
alarm_message: !lambda "return message;"
alarm_code: !lambda "return code;"
- homeassistant.service:
service: notify.persistent_notification
data:
title: "Haier hOn Climate: alarm activated"
data_template:
message: "Code: {{ alarm_code }}, message: \"{{ alarm_message }}\""
variables:
alarm_message: !lambda "return message;"
alarm_code: !lambda "return code;"
on_alarm_end:
then:
- homeassistant.service:
service: logbook.log
data:
domain: climate
name: Climate
data_template:
message: "Alarm deactivated ({{ alarm_code }}): {{alarm_message}}"
variables:
alarm_message: !lambda "return message;"
alarm_code: !lambda "return code;"
button:
- platform: haier
haier_id: haier_ac
self_cleaning:
name: Start self cleaning
steri_cleaning:
name: Start 56°C steri-cleaning
text_sensor:
- platform: haier
haier_id: haier_ac
cleaning_status:
name: Cleaning status
protocol_version:
name: Protocol version
switch:
- platform: haier
beeper:
name: beeper
health_mode:
name: Health mode
display:
name: Display
quiet_mode:
name: Quiet mode
select:
- platform: template
id: haier_ac_vertical_direction
name: Airflow vertical
entity_category: config
icon: mdi:arrow-expand-vertical
update_interval: 5s
options:
- Health Up
- Max Up
- Up
- Center
- Down
- Max Down
- Health Down
- Auto
lambda: >-
switch (id(haier_ac).get_vertical_airflow().value_or(esphome::haier::hon_protocol::VerticalSwingMode::CENTER))
{
case esphome::haier::hon_protocol::VerticalSwingMode::HEALTH_UP:
return std::string("Health Up");
case esphome::haier::hon_protocol::VerticalSwingMode::MAX_UP:
return std::string("Max Up");
case esphome::haier::hon_protocol::VerticalSwingMode::UP:
return std::string("Up");
default:
case esphome::haier::hon_protocol::VerticalSwingMode::CENTER:
return std::string("Center");
case esphome::haier::hon_protocol::VerticalSwingMode::DOWN:
return std::string("Down");
case esphome::haier::hon_protocol::VerticalSwingMode::MAX_DOWN:
return std::string("Max Down");
case esphome::haier::hon_protocol::VerticalSwingMode::HEALTH_DOWN:
return std::string("Health Down");
case esphome::haier::hon_protocol::VerticalSwingMode::AUTO:
case esphome::haier::hon_protocol::VerticalSwingMode::AUTO_SPECIAL:
return std::string("Auto");
}
set_action:
- climate.haier.set_vertical_airflow:
id: haier_ac
vertical_airflow: !lambda >-
if (x == "Health Up")
return esphome::haier::hon_protocol::VerticalSwingMode::HEALTH_UP;
else if (x == "Max Up")
return esphome::haier::hon_protocol::VerticalSwingMode::MAX_UP;
else if (x == "Up")
return esphome::haier::hon_protocol::VerticalSwingMode::UP;
else if (x == "Down")
return esphome::haier::hon_protocol::VerticalSwingMode::DOWN;
else if (x == "Max Down")
return esphome::haier::hon_protocol::VerticalSwingMode::MAX_DOWN;
else if (x == "Health Down")
return esphome::haier::hon_protocol::VerticalSwingMode::HEALTH_DOWN;
else if (x == "Auto")
return esphome::haier::hon_protocol::VerticalSwingMode::AUTO;
else
return esphome::haier::hon_protocol::VerticalSwingMode::CENTER;
- platform: template
id: haier_ac_horizontal_direction
name: Airflow horizontal
entity_category: config
icon: mdi:arrow-expand-horizontal
update_interval: 5s
options:
- Max Left
- Left
- Center
- Right
- Max Right
- Auto
lambda: >-
switch (id(haier_ac).get_horizontal_airflow().value_or(esphome::haier::hon_protocol::HorizontalSwingMode::CENTER))
{
case esphome::haier::hon_protocol::HorizontalSwingMode::MAX_LEFT:
return std::string("Max Left");
case esphome::haier::hon_protocol::HorizontalSwingMode::LEFT:
return std::string("Left");
default:
case esphome::haier::hon_protocol::HorizontalSwingMode::CENTER:
return std::string("Center");
case esphome::haier::hon_protocol::HorizontalSwingMode::RIGHT:
return std::string("Right");
case esphome::haier::hon_protocol::HorizontalSwingMode::MAX_RIGHT:
return std::string("Max Right");
case esphome::haier::hon_protocol::HorizontalSwingMode::AUTO:
return std::string("Auto");
}
set_action:
- climate.haier.set_horizontal_airflow:
id: haier_ac
horizontal_airflow: !lambda >-
if (x == "Max Left")
return esphome::haier::hon_protocol::HorizontalSwingMode::MAX_LEFT;
else if (x == "Left")
return esphome::haier::hon_protocol::HorizontalSwingMode::LEFT;
else if (x == "Right")
return esphome::haier::hon_protocol::HorizontalSwingMode::RIGHT;
else if (x == "Max Right")
return esphome::haier::hon_protocol::HorizontalSwingMode::MAX_RIGHT;
else if (x == "Auto")
return esphome::haier::hon_protocol::HorizontalSwingMode::AUTO;
else
return esphome::haier::hon_protocol::HorizontalSwingMode::CENTER;
sensor:
- platform: haier
haier_id: haier_ac
compressor_current:
name: Compressor Current
compressor_frequency:
name: Compressor Frequency
expansion_valve_open_degree:
name: Expansion Valve Open Degree
indoor_coil_temperature:
name: Indoor Coil Temperature
outdoor_coil_temperature:
name: Outdoor Coil Temperature
outdoor_defrost_temperature:
name: Outdoor Defrost Temperature
outdoor_in_air_temperature:
name: Outdoor In Air Temperature
outdoor_out_air_temperature:
name: Outdoor Out Air Temperature
outdoor_temperature:
name: Outdoor temperature
power:
name: Power
binary_sensor:
- platform: haier
haier_id: haier_ac
compressor_status:
name: Compressor Status
defrost_status:
name: Defrost Status
four_way_valve_status:
name: Four-way Valve Status
indoor_electric_heating_status:
name: Indoor Electric Heating Status
indoor_fan_status:
name: Indoor Fan Status
outdoor_fan_status:
name: Outdoor Fan Status