This means that the capacitor or the blower motor is going bad. It is a good idea to change them at the same time. Copy the model and serial number down and take it to a HVAC supply house and they can sell you the motor and capacitor. Make sure you don't touch the top of the capacitor or it will shock you. Once you take the wires off, ground the top of the capacitor or you'll be sorry. Also, unplug the unit before ever working on any part of it.
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This means that the capacitor or the blower motor is going bad. It is a good idea to change them at the same time. Copy the model and serial number down and take it to a HVAC supply house and they can sell you the motor and capacitor. Make sure you don't touch the top of the capacitor or it will shock you. Once you take the wires off, ground the top of the capacitor or you'll be sorry. Also, unplug the unit before ever working on any part of it.