Thermistors not recognized, open circuit temperature at 2000°C

[Scally123]

So I have edited the config.g to state;

; Heaters
M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
M305 P0 ; Configure PT1000 for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M305 P1 ; Configure PT1000 for heater 1
M143 H1 S280 ; Set temperature limit for heater 1 to 280C

Using the G Code Console to send M305 P0 and M305 P1 to the machine and it replied with these settings

1:58:45 PMM305 P0
Heater 0 uses Thermistor sensor channel 0, T:362000.0 B:3950.0 C:0.00e+0 R:4700.0
1:58:18 PMM305 P1
Heater 1 uses Thermistor sensor channel 1, T:110000.0 B:3950.0 C:0.00e+0 R:4700.0

As I am only testing it and trying to get it ambient temperature the PT1000's are currently free in mid air in an attempt to prevent shorts against the metal work.

[Veti]

that indicates that you are configuring your thermistors elsewhere.

check all files in the sys folder. especially config overwrite for any m305 commands.

[dc42]

@Scally123, you misunderstood me. When I said:

@dc42 said in Thermistors not recognized, open circuit temperature at 2000°C:

Try sending M305 P0 with no other parameters, and check it reports that it is configured for a PT1000. Likewise M305 P1.

I meant you to leave the M305 commands in config.g alone, but to run those 2 commands from the console, to check that the 2 heaters were configured to use PT1000 sensors.