Furnace Blower Low Speed Only

While the black is high the blue is medium and the yellow is often low.

Furnace blower low speed only.

An incorrect low torque setting yields low blower speed. This isn t always the case though so it s important to check the speed with the manometer. Your furnace s manual tells you whether or not the furnace is blowing low medium or high. We have 2 of these furnaces and the functioning one is much louder and blows a lot more air at both settings i just wanted to clear that.

Not only that but our energy star. The furnace operates for two minutes or so before it shuts down. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. The gas kicks on and is lit by the ignitor.

The gas is shut off and the induction motor stops running while the blower motor continues to run at low rpms. Each wire has a different speed that it blows when connected. Looks like low is 1 2 of the highest speed for a better constant fan and use very little juice. I know that the blower motor should have 3 speeds i checked the wiring when testing the capacitor the heat wire is connected to the med speed and the cool wire is connected to the high speed.

It has a replaceable surge protector standard which is great since most ecm failures are electrical that blow sacrificial thermistors. Comfort sup sup 95 ultra low nox gas furnace 59su5 https. For example ecm motors have an electronic digital driver that is set using dip switches or other means. It wires similarly and works the same with 1 2 speed constant fan.

If your unit has either of these then the low speed problem may have other causes. Mars makes the azure motor that s like it.