I just installed a Honeywell HE 360 Humidifier I purchased at Home depot. I replaced a Aprilaire model 110 . I have a 120v power duplex that is hot with the furnace blower motor, on so I assumed the sail switch is NOT NEEDED to sequence the humidifier with the furnace blower motor. Bottom line when I hook it up, with 2 yellow wires connected to my house low voltage wires to the humidistat.. nothing happens. As a check , I tried a bench test, and touchd the 2 yellow wires ,with the unit plugged into wall outlet , assuming the fan should turn on. It did not. So ,thinking it was a defective unit I removed the unit, and took it back to Home Depot for a even exchange. The new replacement unit (same model 360 since I cut the duct plenum opening for that model) does not work either so I must be missing something in the wiring requirements.. Also interesting is the 2 Red wires on the humidifier are NOT needed per the instructions. Not sure what they are there for , Does anyone out there know what the missing wiring issue is ?