TS80P reading room temperature too high

[nikolasgd]

My TS80P with IronOS 2.22E.C308FE8C reports a room temperature of around 170 degrees Celsius in idle mode.

For reproducing both handle and tips are at room temperature, around 21 degrees C. I have calibrated the iron and tried multiple tips (and power adapters just to make sure), all the same.

Values reported in debug menu are: RTip at ~ 1500 and CHan at ~ 170.

So from my understanding, CHan is the PCB temperature sensor reading in Celsius x 10? Seems reasonable in tolerance.

Reported temperature in idle main menu seems to be exactly the CHan value (without the decimal fraction part). So a CHan value of 170.1 will report tip temperature of 170 degrees celcius.

Since both Rtip and CHan values are in expected range, this must a software bug?

Thanks for looking into it. I really appreciate the work and dedication you put into this.

[nikolasgd]

Just to confirm. This does not occur in the previous release IronOS V2.21. I have switched back to this version for now, as PD is also not working anymore in the latest release.

[discip]

Have you tried calibrating the device according to this documentation?
Please follow the instructions carefully, especially those stating to wait. 😊

[nikolasgd]

Definitely not a calibration issue. Temperature is reported correctly after switching back to IronOS 2.21

[nikolasgd]

I followed these instructions: https://ralim.github.io/IronOS/Menu/#calibrate-tip-cjc

And yes, I waited more than 30 minutes and used a cold tip 😊

[discip]

Oh, sorry, I forgot to put in the link to the documentation and missed the part in the initial post that literally states that you already calibrated the iron. 🤦🏻 😅

Definitely not a calibration issue.

I followed these instructions:

That's interesting.
I also own a TS80P and it works as expected with the latest firmware.

Maybe your device uses a GD chip instead of a STM one?

[nikolasgd]

I will check tomorrow which chip is used. Can I find this info in the debug menu or only by looking at the pcb?

[discip]

Unfortunately you would need to open the device.