Tuya inverter uses wrong property as current temperature

[sorted-bits]

The problem

I have a Fairland Heatpump inverter which is connected to Tuya. It is reporting the current temperature as -22 degrees celsius, while that is not the case.

I looked in the IoT platform of Tuya and the value -22 is actually in the data:

{
  "result": {
    "properties": [
      {
        "code": "Power",
        "custom_name": "",
        "dp_id": 1,
        "time": 1715447232632,
        "value": false
      },
      {
        "code": "WInTemp",
        "custom_name": "",
        "dp_id": 102,
        "time": 1715435793274,
        "value": 18
      },
      {
        "code": "change_tem",
        "custom_name": "",
        "dp_id": 103,
        "time": 1715430101179,
        "value": true
      },
      {
        "code": "SpeedPercentage",
        "custom_name": "",
        "dp_id": 104,
        "time": 1715438243626,
        "value": 0
      },
      {
        "code": "SetMode",
        "custom_name": "",
        "dp_id": 105,
        "time": 1715430374174,
        "value": "warm"
      },
      {
        "code": "SetTemp",
        "custom_name": "",
        "dp_id": 106,
        "time": 1715430307802,
        "value": 27
      },
      {
        "code": "SetDnLimit",
        "custom_name": "",
        "dp_id": 107,
        "time": 1715430374470,
        "value": 18
      },
      {
        "code": "SetUpLimit",
        "custom_name": "",
        "dp_id": 108,
        "time": 1715430101264,
        "value": 40
      },
      {
        "code": "fault1",
        "custom_name": "",
        "dp_id": 115,
        "time": 1715421558893,
        "value": 0
      },
      {
        "code": "fault2",
        "custom_name": "",
        "dp_id": 116,
        "time": 1715421558920,
        "value": 0
      },
      {
        "code": "SilentMdoe",
        "custom_name": "",
        "dp_id": 117,
        "time": 1715421648700,
        "value": false
      },
      {
        "code": "WarmOrCool",
        "custom_name": "",
        "dp_id": 118,
        "time": 1715421547185,
        "value": false
      },
      {
        "code": "OutPipeTemp",
        "custom_name": "",
        "dp_id": 120,
        "time": 1715421547185,
        "value": -22
      },
      {
        "code": "ExhaustTemp",
        "custom_name": "",
        "dp_id": 122,
        "time": 1715421547185,
        "value": -22
      },
      {
        "code": "AmbTemp",
        "custom_name": "",
        "dp_id": 124,
        "time": 1715421547185,
        "value": -22
      },
      {
        "code": "CompFreAct",
        "custom_name": "",
        "dp_id": 125,
        "time": 1715421547185,
        "value": 0
      },
      {
        "code": "CompressorCurrent",
        "custom_name": "",
        "dp_id": 126,
        "time": 1715421547185,
        "value": 0
      },
      {
        "code": "RadTemp",
        "custom_name": "",
        "dp_id": 127,
        "time": 1715421547185,
        "value": -22
      },
      {
        "code": "EXVPosition",
        "custom_name": "",
        "dp_id": 128,
        "time": 1715421547185,
        "value": 0
      },
      {
        "code": "DCFanSpeed",
        "custom_name": "",
        "dp_id": 129,
        "time": 1715421547185,
        "value": 0
      },
      {
        "code": "Defrost",
        "custom_name": "",
        "dp_id": 130,
        "time": 1715421547185,
        "value": false
      },
      {
        "code": "CompRly",
        "custom_name": "",
        "dp_id": 134,
        "time": 1715421547185,
        "value": false
      },
      {
        "code": "CyclePump",
        "custom_name": "",
        "dp_id": 135,
        "time": 1715421547185,
        "value": false
      },
      {
        "code": "ReserveValve",
        "custom_name": "",
        "dp_id": 136,
        "time": 1715421547185,
        "value": false
      },
      {
        "code": "ChargeRly",
        "custom_name": "",
        "dp_id": 139,
        "time": 1715421547185,
        "value": false
      },
      {
        "code": "ACFanSpeed",
        "custom_name": "",
        "dp_id": 140,
        "time": 1715421547185,
        "value": "LowSpeed"
      }
    ]
  },
  "success": true,
  "t": 1715450036814,
  "tid": "70308c860fbf11efb2424a20391ad943"
}

It would be really nice if we could either change the DP which is used or that it could get fixed for this model?

What version of Home Assistant Core has the issue?

core-2024.5.1

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant Container

Integration causing the issue

Tuya

Link to integration documentation on our website

https://www.home-assistant.io/integrations/tuya

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response

[home-assistant]

Hey there @tuya, @zlinoliver, @frenck, mind taking a look at this issue as it has been labeled with an integration (tuya) you are listed as a code owner for? Thanks!

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[zwizwi]

Same here, it would be nice, if you could change the datapoint to this:
{
"code": "WInTemp",
"custom_name": "",
"dp_id": 102,
"time": 1715435793274,
"value": 18
},
{

For the fairland devices.

[luclve]

Same problem here. Temperature remains on -22 degrees:

I want to make an automation to switch on the heatpump if my solarpanels are producing enough power. But when there is no sun for a few days, then I have to overrule this if the incoming temperature of water drops to low. But therefore I need this value. Also am I missing fan speed and (silence) mode datapoints.

[zwizwi]

Maybe it‘s easier to understand if you see the original app:

At that example you can see that the current water in is 20 degrees