QA

Question: Inducer Motor Running When Ac Is On

Why does the inducer motor keep running?

If your inducer fan motor keeps on running all the time, it’s most likely due to a tripped safety such as the high limit switch. It could also be due to a bad control board that is “stuck” in the on position for running the inducer fan.

When should inducer motor shut off?

Because the inducer motor helps your furnace run safely, the furnace will usually shut off if the motor won’t turn on. However, a bad inducer motor isn’t the only reason a furnace would shut off. A blocked gas vent flue or faulty pressure switch can have the same effect.

Does an inducer motor have a capacitor?

The capacitor is what helps supply power to the motor when it’s first starting up. The result is not enough juice makes it to the inducer motor, and it most likely won’t start up. Or, if it does, it’s going to be weak or start and stop repeatedly every 30 seconds or so.

How do I know if my inducer motor is bad?

How Do I Know If the Draft Inducer Motor Has Gone Bad? One of the first indications of a bad draft inducer motor is likely to be the sound it makes. A failing inducer motor may create a noise shortly after a heating cycle begins. This could be a tapping noise, or a humming or whirring sound.

Why does my AC blower continues to run?

A too-small HVAC system will often run to keep up with the thermostat setting, leading the fan and blower to run consistently. This means that the entire system, including the fan, will run longer than usual to attain the set temperature.

What causes an inducer motor to fail?

Most inducer motors failures are simply attributed to the older age of the furnace. In most cases, the internal bearings wear out and since the unit is a sealed unit, there is no way to repair the original motor. Instead the unit is simply replaced with a new one.

How long does an inducer motor last?

Question: How long does an inducer motor last? Answer: Just like any other motor, an inducer motor can last up to 20 years.

Why is my inducer motor hot?

Is the base of the motor warm or hot to the touch? This means it’s been trying to spin, but something is holding it up. Another reason has to do with the windings inside the motor. One of them could be open—usually, the start winding in this case.

What does the inducer motor do on a gas furnace?

The inducer motor turns on and draws combustion air into the furnace. This helps to make sure the gas is burning efficiently. Next, an ignitor will either glow or spark to ignite the gas that starts flowing. This gas ignites into flames while the hot air and obnoxious gases are drawn into the heat exchanger.

How do you test a pressure switch?

Test the Switch for Resistance Disconnect the wires connected to the pressure switch by pulling the wire connectors off of the switch terminals. Set a multimeter to test for resistance (ohms). Touch each tester probe to one of the switch terminals. The tester should read 0 or close to 0 (indicating no resistance).

How much does it cost to replace inducer motor?

Your furnace’s draft inducer motor removes toxic gases like carbon monoxide from the heat exchanger. The average cost to repair or replace a draft inducer motor is $200–$1,500.

Will a cracked heat exchanger symptoms?

If you have a crack in the heat exchanger, you are likely to hear a rattling noise as your thermostat turns on the heat. Because the heat exchanger is made out of metal, as it is heated cracks will expand/contract, and can cause rattling, popping, and/or banging noises. Presence of Carbon Monoxide.

How long do draft inducers last?

A: On average, you can expect a well-built inducer motor to last around 20 years.

How much is an inducer motor for a furnace?

The average furnace inducer motor cost is around $245, when the part is under warranty and you pay only the labor to have it installed. The replacement cost is $465 when the warranty has expired and you pay for the furnace inducer motor.

Why won’t the fan on my AC turn off?

The most common reason that your Air Conditioner fan won’t turn off is because a stuck relay keeping the circuit closed. Double-check the thermostat and make sure the fan is not set to ON, and that it still runs when switching it to AUTO or OFF (if your thermostat has an OFF setting). Jul 15, 2018.

Why does AC fan run when heat is on?

During warm temperatures, it removes the heat in the air from the indoors and shifts it outdoors. The fans in the outdoor unit must also run in order to draw the outside air across the coils where the refrigerant absorbs its heat through evaporation and then takes it indoors.