Does the fan for my system shut Off in Cooling mode?Updated 8 hours ago

No. The fan for your system will not shut Off in Cooling mode. The fan must run continually to properly sample the zone’s air room temperature, as well as adjust the compressor speed and output based on the room’s heat loads.

The system’s fan, which only uses ~15 watts of power, is made to run under continuous duty. Under minimal loads, the fan and compressor will slow down to prioritize minimal energy consumption.

The fan will only enter a standby phase if the unit enters Heat mode. The fan needs to wait until the coil warms up to the correct temperature before exiting the standby phase. This prevents cold air from depositing into the room during defrost cycles.

Having the system’s fan run continually helps maintain a consistent airflow, ensuring an even distribution of cooled or heated air throughout the space. It also prevents temperature variations, resulting in more comfortable and consistent indoor conditions.   

Pioneer mini splits are high-technology, variable-speed digital inverter systems, meaning the systems do not work like older analog On-Off systems. Rather than using an "all or nothing" approach like traditional central AC units, the technology allows the mini split to adjust its output to fit what the environment is calling for. This ensures greater energy efficiency and a long lifespan.