If not the capacitor or the blower motor is not functioning properly.
Furnace blower motor capacitor polarity.
If the furnace is receiving power turn up the thermostat and see whether the blower motor starts within the next few minutes.
The start capacitor gives a fan motor the torque it needs to start spinning then stops.
A bad or faulty capacitor can exhibit many signs and symptoms.
The capacitor feeds the motor extra power until the fan starts moving at a predetermined speed at which point the capacitor turns off.
Before checking the capacitor make sure the fuse controlling the furnace is flipped to the on position.
Like a battery the capacitor stores the extra energy that is needed to jump start the furnace blower.
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A start or run capacitor can be combined into one capacitor called a dual capacitor with three leads but can be split between two separate capacitors.
Where is a furnace capacitor located.
Have only a single capacitor.
Without the capacitor the blower would not start because the run capacitor initiates the blower fan to start turning.
Have two capacitors called a start and run capacitor.
While the run capacitor stays on giving the motor extra torque when needed.
Diagnosing a problem with a blower s capacitor requires an understanding of the capacitor s function.
But with a bad capacitor your blower cannot function well and may put your family s comfort at risk.
Its capacitor works like a battery and stores the energy needed by the blower to work properly.
The blower motor in your furnace blows hot air through the ducts and into your home.
How to check a run capacitor.
This is the most common design type.
To answer this question the panel door to the furnace will need to be removed.
Your furnace uses a lot of energy so to supply the extra energy needed to power the blower gas furnaces have a capacitor.
It will switch back into circuit once the furnace blower motor drops below the predetermined speed.
Not have a capacitor at all.
Some units do not use a capacitors to run the blower motor.
The blower then moves the warmed air into and through the ductwork in your house.
