ActronAir Indoor Fan Motor suits SWB26, SWB36, WRE-026AS, WRE-026CS, WRE-035CS is the genuine replacement indoor fan motor for these WRE and SWB wall split system indoor units, driving the cross-flow fan that circulates conditioned air across the indoor evaporator coil and into the room. A failed indoor fan motor causes immediate loss of cooling and heating airflow -- the compressor will continue to operate without the fan, risking coil icing and system shutdown on low pressure protection. Isolate power at mains before replacement -- live work on fan assemblies is dangerous and must only be performed by a qualified technician.