turn on HB fan before setting the nozzle temp Signed-off-by: qing.zhang <qing.zhang@bambulab.com> Change-Id: I55908465055dcd93d274c1d861715cf7b9cbe655
turn on HB fan before setting the nozzle temp Signed-off-by: qing.zhang <qing.zhang@bambulab.com> Change-Id: I55908465055dcd93d274c1d861715cf7b9cbe655