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Coro-Flo® Turbine Pump—Troubleshooting Guide

Motor Overheating or Starter Tripping Out

Possible Causes

What To Do

High differential pressure

Check the motor's full load amperage. Adjust the by-pass valve setting to a lower setting. See recommendations for low capacity due to high differential pressure.

Starter overload heaters too small

Check motor load with ammeter and confirm heater size with starter manufacturers instructions.

Low line voltage

Check line voltage when in operation. Be sure motor is wired for the proper voltage. Check the electric motor's nameplate.

Motor shorted out

TEFC and explosion proof motors are subject to moisture condensation inside when used intermittently. To eliminate trouble, allow motor to operate at least once a week long enough for the motor to get hot. This would not be necessary during off seasons when equipment is not normally operating.

Corken, Inc.
A Unit of IDEX Corporation
3805 N.W. 36th Street, Oklahoma City, OK 73112 U.S.A.
(405) 946-5576
FAX (405) 948-7343