Pironman 5 tower cooler fan will not com on after boot

I see lots of post but no definite solutions. I have even tried to start it with the pironman5 service stopped and nothing happens.

I put dtparam directives in config.sys
dtparam=cooling_fan=on
dtparam=fan_temp0=40000

It briefly starts and stops while booting, but after that is just sits there being useless.

Has anyone gotten this to work? A genuine solution would be appreciated.

Thanks

Ed

The tower cooler is directly controlled by the Raspberry Pi system and does not depend on the Pironman5 service.
Please try running the following commands to check if the fan works properly.
These three commands correspond to: full speed / stop / variable speed based on temperature:

pinctrl FAN_PWM op dl # enable fan (low active)

pinctrl FAN_PWM op dh # disable fan (high active)

pinctrl FAN_PWM a0 # auto mode (system temperature control)

Thank you! I got it to go on.

Great,if you have any further questions, please feel free to ask.