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Capacitors

Start Capacitors Burned Out

QuestionsCauseRemedy
Are Relay contacts sticking?Relay contacts stickingClean contacts or replace Relay
Do you have correct start capacitors?Improper capacitorCheck parts catalog for proper capacitor rating---mfd. and voltage
Is the compressor short cycling?Short cyclingCheck parts catalog for proper capacitor rating---mfd. and voltage
Is the compressor short cycling?Short cyclingReplace starting capacitor with series arrangement or reduce number of starts per hour to 20 or less
Is there a prolonged operation on starting winding?Prolonged operation on starting windingReduce starting load (install suction regulating valve), increase voltage, if low

 

Run Capacitors Burned Out

QuestionsCauseRemedy
Have you checked the line voltage?Excessive line voltage.Reduce line voltage to not over 10% over rating of motor.
How heavy is the product load?High line voltage and light load.Reduce line voltage to not over 10% excessive. Check voltage imposed on capacitor and select one equivalent to this in voltage rating.