I have placed my Multiplus 12/1600/70-16 inverter in a cold environment (0° C) with ample ventilation space. This morning, despite a relative meagre load (500 W) whilst inverting, the fan was on.
As I understand it, the operation of the fan is there to stop overheating and will start up when the und gets too warm, however given this morning's discovery I though it prudent to source a second opinion.
I would welcome any information regarding the fan and whether it might be prudent to disable it.
Best regards