Chamber Fan is always active

Miken

Hello fellows,

i've connect fan for chamber cooling. Using Com::print i'm reading temperature from the thermistor. All values are correct. In function managetemperatures (Extruder.cpp) it does jump in the if statement

if(act->currentTemperatureC < Printer::thermoMinTemp)
pwm_pos[PWM_FAN_THERMO] = 0;

but the fan never stops.

Any ideas ?

Happy new year

Repetier

If it goes inside it should be disabled by

if(pwm_pos_set[PWM_FAN_THERMO] == pwm_count_cooler && pwm_pos_set[PWM_FAN_THERMO] != COOLER_PWM_MASK) WRITE(FAN_THERMO_PIN,0);in HAL.cpp.

Possible reasons are if FAN_THERMO_PIN has a pin number that is also used by an other pwm signal or if it is not the pin number where the fan is connected.Just my first ideas to look for.