How to Install a Pool Filter Motor
image by A. Johnson
The pool filter motor is the most important piece of equipment in the pool filtering and cleaning system. The motor drives the pump which moves water from the pool through the filter, and in some cases a heater, and back to the pool. If the motor is not operating, the filtering cycle, heating, and pool sweep operation will not work. The result will be improper water chemistry and a dirty pool.
Locate the pool motor. It is usually located in an area away from the pool with the other pool equipment.
Locate the power supply, usually a breaker in a panel near the equipment.
Turn the breaker off. Use the voltage meter to verify power to the motor location is off. Most voltage meters have two prongs, to use place one lead on one wire and the other lead on the other wire, and an indicator will show if there is power.
Close the valves on the intake and discharge sides of the motor and pump assembly. This is done so water will not siphon out of the pool.
Disconnect the motor and pump assembly from the intake and discharge lines. This is usually done by loosening two large unions with a pipe wrench. If unions are not used, cut the pipes with a hack saw or pipe cutters. Be sure to leave enough pipe so that the new motor can be placed back in line.
Disconnect the power cord from the motor. Remove the pump and motor assembly.
Disconnect the pump from the motor. Use either a 9/16 or 5/8 inch box wrench. A back up wrench may be needed on the bolt head or nut. There are 8 bolts in most applications.
Connect the new motor to the pump. Use the same procedure as removing the old motor. Place the motor and pump assemble back in line.
Reconnect the power cord. Turn the breaker back on.
Open the valves on both sides of motor assembly.
Turn on the motor and check for leaks. Tighten fittings if leaks appear.
Open the bleed valve at the top of the filter to remove any air from the system. Close the valve when water appears.
Make sure water is moving freely from the pool, through the filter and back to the pool.