Check the pull chain switch on the fan. A bad switch, or missing speed setting, will cause the fan to run slowly. Turn the fan off and allow it to stop moving. Pull the chain and turn the fan on the lowest setting, then listen to the fan motor as you pull the chain and move through the progressive speed settings. Mar 20, 2007 · A fan motor speed control system for controlling the fan motor speed of an air conditioning system includes a power output circuit including a power triac which is turned on and off by an opto-isolator connected to a pulse generator circuit for varying an AC voltage waveform imposed on the fan motor.
Blade pitch engineered for maximum airflow for each fan size and motor. Additional Resources. Downloads, FAQs, and more. ... 1/3 HP 2 Speed Motor. Product ID : PMTR ...
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