TPFanControl now correctly controls both fans on Lenovo ThinkPad P53.
I added a fix that allows TPFanControl to correctly control both fans - FAN1 and FAN2 on Lenovo ThinkPad P53.
Old temporary fix that sets "Mode: BIOS => Mode: Manual 1 => Mode: Manual 0" when temperature goes below 50C is now obsolete and has been removed.