Section 7: Troubleshooting - Pentair EQ SERIES Installation And User Manual

16
Section 7
Use the following troubleshooting information to resolve possible problems with your EQ Series pump.
— RISK OF ELECTRICAL SHOCK OR ELECTROCUTION.
Improperly installation will create an electrical hazard which could result in death or serious injury
to pool users, installers, or others due to electrical shock, and may also cause damage to property.
1. If you are not familiar with your pool filtering system and/or heater:
Note: Turn off power to unit prior to attempting service or repair.
Problems and Corrective Actions
OR
EQ Series Pump Installation and User's Guide
a. Do NOT attempt to adjust or service without consulting your dealer, or a qualified pool
technician.
b. Read the entire Installation & User's Guide before attempting to use, service or adjust the
pool filtering system or heater.
No water in Strainer Pot
Lid is not tight
Damaged lid O-Ring
Water level below Skimmer
Strainer or Skimmer Basket clogged
Closed Valve in Piping System
Air leak in Suction Line
Pump installed more than 10 ft. above Water Level or otherwise
too high for Hydraulic Conditions of Pool Plumbing System
Pump Shaft rotating in wrong direction
Filter is dirty
Restriction in Filter Line
Strainer or Skimmer Basket clogged
Clogged Impeller
Air leak in Suction Line
Restriction in Suction Line
Cavitation - NPSHA less than NPSHR
Pump Shaft rotating in wrong direction
Power Switch is off
Circuit Breaker has tripped
Thermal Protector has tripped
Pump is in OFF mode of Timer
Motor Shaft is locked by bad Bearing
Impeller is jammed
Electrical Supply Connections are incorrect
Wiring to Pump is undersized
Inadequate Voltage supplied to Site
Ventilation is inadequate for Motor
Voltage differential between legs of 3 Phase Circuit >5%
Pump Shaft rotating in wrong direction
Air Leak in Suction Line
Cavitation - NPSHA less than NPSHR
A Valve, Elbow or Tee is located too close to the Suction Inlet of the Pump
Pump Shaft rotating in wrong direction