Whirlpool IR Climate sends incorrect code to HVAC unit

The problem

Changing temperature from captive portal or Home Assistant climate entity sends incorrect IR code - there's a -2*C offset on set temperature. Data received from remote is parsed correctly.

Installed unit: Whirlpool SPIW312L Remote controller: DG11J1-3A

I've made a 'dirty' fix in whirlpool.cpp that works for me (attached in additional informations), at least in short testing, but my C/Cpp knowledge is very limited. I can try to provide more logs from the remote if needed.

Byte 6 and 7 changes when '6th Sense' button is used. Said button sets HEAT_COOL mode in esphome, but temperature change is not working at all. It's a minor issue in my use case, although I can provide logs too.

Which version of ESPHome has the issue?

2024.5.5

What type of installation are you using?

Home Assistant Add-on

Which version of Home Assistant has the issue?

2024.6.3

What platform are you using?

ESP8266

Board

ESP_IR_TR_V1.1

Component causing the issue

whirlpool

Example YAML snippet

esphome:
  name: ac-controller
  friendly_name: AC Controller

esp8266:
  board: esp8285

web_server:
  port: 80

# Enable logging
logger:
  level: VERBOSE

# Enable Home Assistant API
api:
  encryption:
    key: ""
ota:
  password: ""

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Ac-Controller Fallback Hotspot"
    password: ""

captive_portal:

text_sensor:
  - platform: version
    name: "ESPHome Version"

remote_receiver:
  id: ir_receiver
  pin:
    number: GPIO14
    inverted: true

remote_transmitter:
  pin: GPIO4
  carrier_duty_percent: 50%

climate:
  - platform: whirlpool
    name: Living Room AC
    receiver_id: ir_receiver
    visual:
      min_temperature: 18
      max_temperature: 32
      temperature_step: 1.0

Anything in the logs that might be useful for us?

# Received code from Remote
21:04:06    [V] [whirlpool.climate:204] 
Received: 83 06 00 62   00 00 94 39   00 00 00 00   00 CF 00 02   00 00 00 00   02
21:04:06    [V] [whirlpool.climate:218] 
Power: 00
21:04:06    [D] [climate:396]   
'Living Room AC' - Sending state:
21:04:07    [D] [climate:399]   
  Mode: OFF
21:04:07    [D] [climate:404]   
  Fan Mode: AUTO
21:04:07    [D] [climate:416]   
  Swing Mode: OFF
21:04:07    [D] [climate:425]   
  Target Temperature: 24.00°C

# Sent code from esphome controller

21:04:32    [V] [whirlpool.climate:114] 
Sending: 83 06 00 60   00 00 80 00   00 00 00 00   00 E0 00 00   00 00 08 00   08
21:04:32    [D] [remote_transmitter:075]    
Sending remote code...
21:04:32    [D] [climate:396]   
'Living Room AC' - Sending state:
21:04:32    [D] [climate:399]   
  Mode: OFF
21:04:32    [D] [climate:404]   
  Fan Mode: AUTO
21:04:32    [D] [climate:416]   
  Swing Mode: OFF
21:04:32    [D] [climate:425]   
  Target Temperature: 24.00°C

Additional information

Index       0  1  2  3    4  5  6  7    8  9 10 11   12 13 14 15   16 17 18 19   20
Received:  83 06 00 62   00 00 94 39   00 00 00 00   00 CF 00 02   00 00 00 00   02     # 24C
Sending:   83 06 00 60   00 00 80 00   00 00 00 00   00 E0 00 00   00 00 08 00   08     # 24C
After fix: 83 06 00 72   00 00 94 39   00 00 00 00   00 DF 00 06   00 00 00 00   06

Modified whirlpool.cpp: whirlpool.zip

esphome / issues