Zodiac FloProE3 User manual

H0394700 Rev D
ENGLISH
WARNING
FOR YOUR SAFETY - This product must be installed and serviced by a contractor who is licensed
and qualified in pool equipment by the jurisdiction in which the product will be installed where such
state or local requirements exist. The maintainer must be a professional with sufficient experience
in pool equipment installation and maintenance so that all of the instructions in this manual can be
followed exactly. Before installing this product, read and follow all warning notices and instructions
that accompany this product. Failure to follow warning notices and instructions may result in property
damage, personal injury, or death. Improper installation and/or operation will void the warranty.
Improper installation and/or operation can create unwanted electrical hazard which
can cause serious injury, property damage, or death.
ATTENTION INSTALLER - This manual contains important information about the
installation, operation and safe use of this product. This information should be given
to the owner/operator of this equipment.
INSTALLATION AND
OPERATION MANUAL
Zodiac FloPro E3
3-Speed Variable Pump

Page 2 ENGLISH Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
Table of Contents
EQUIPMENT INFORMATION RECORD
DATE OF INSTALLATION
INSTALLER INFORMATION
INITIAL PRESSURE GAUGE READING (WITH CLEAR FILTER)
PUMP MODEL HORSEPOWER
NOTES:
Section 1. Important Safety Instructions ......3
1.1 Safety Instructions.......................................... 3
1.2 Pool Pump Suction Entrapment Prevention
Guidelines ...................................................... 5
Section 2. General Description ....................5
2.1 Introduction..................................................... 5
2.2 Description ..................................................... 5
Section 3. Installation Information.................. 5
3.1 Plumbing ........................................................ 5
3.2 Electrical Installation....................................... 6
3.3 Conduct Pressure Testing .............................. 6
Section 4. Operation......................................7
4.1 Start-up........................................................... 7
4.2 Operational Controls ...................................... 7
Section 5. Service and Maintenance............8
5.1 Routine Maintenance ..................................... 8
Section 6. Troubleshooting and Repair.......9
6.1 Troubleshooting.............................................. 9
6.2 Fault Codes .................................................. 10
6.3 Service Technician Maintenance.................. 10
Section 7. Product Specications and
Technical Data ...........................14
7.1 Replacement Parts List ................................ 14
7.2 GeneralSpecications ................................. 14
7.3 Exploded View.............................................. 15

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Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
Section 1. Important Safety Instructions
READ AND FOLLOW ALL INSTRUCTIONS
1.1 Safety Instructions
All electrical work must be performed by a licensed electrician and conform to all national, state, and local codes.
When installing and using this electrical equipment, basic safety precautions should always be followed, including
the following:
WARNING
RISK OF SUCTION ENTRAPMENT HAZARD, WHICH, IF NOT AVOIDED, CAN RESULT IN SERIOUS
INJURY OR DEATH. Do not block pump suction, as this can cause severe injury or death. Do not use this
pump for wading pools, shallow pools, or spas containing bottom drains, unless the pump is connected to at
least two (2) functioning suction outlets. Drain covers must be certified to the latest published edition of ANSI/
ASME A112.19.8.
WARNING
To reduce the risk of injury, do not permit children to use this product.
WARNING
To reduce the risk of property damage or injury, do not attempt to change the backwash (multiport, slide, or
full flow) valve position with the pump running.
WARNING
Incorrectly installed equipment may fail, causing severe injury or property damage.
WARNING
The pump is for fixed installations only and to be used in conjunction with swimming pool equipment (e.g.
filters).
The pump is to be installed in accordance with the relevant requirements of the Australian wiring rules NS/
NZS 3000.
Also refer to the installation instructions relating to the swimming pool equipment for which the pump will be
an integral part.
The pump is to be supplied through a residual current device (RCD) with a rated residual operating current of
30mA.
If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or similarly
qualified person in order to maintain proper safety conditions.

Page 4 ENGLISH Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
SAVE THESE INSTRUCTIONS
WARNING
To minimize the risk of severe injury or death, the filter and/or pump should not be subjected to the piping
system pressurization test.
Local codes may require the pool piping system to be subjected to a pressure test. These requirements are
generally not intended to apply to the pool equipment such as filters or pumps.
Zodiac®pool equipment is pressure tested at the factory.
However, if the WARNING cannot be followed and pressure testing of the piping system must include the
filter and/or pump, BE SURE TO COMPLY WITH THE FOLLOWING SAFETY INSTRUCTIONS:
• Check all clamps, bolts, lids, lock rings and system accessories to ensure they are properly installed and
secured before testing.
• RELEASE ALL AIR in the system before testing.
• Water pressure for test must NOT EXCEED 35 PSI.
• Water temperature for test must NOT EXCEED 100°F (38°C).
• Limit test to 24 hours. After test, visually check system to be sure it is ready for operation.
NOTICE: These parameters apply to Zodiac equipment only. For non-Zodiac equipment, consult equipment
manufacturer.
CAUTION
Do not start pump dry! Running the pump dry for any length of time will cause severe damage and will void
the warranty.
WARNING
Chemical spills and fumes can weaken pool/spa equipment. Corrosion can cause filters and other equipment
to fail, resulting in severe injury or property damage. Do not store pool chemicals near your equipment.
CAUTION
This pump is for use with permanently installed pools and may also be used with hot tubs and spas, if so
marked. Do not use with storable pools. A permanently installed pool is constructed in or on the ground or
in a building such that it cannot be readily disassembled for storage. A storable pool is constructed so that it
may be readily disassembled for storage and reassembled to its original integrity.

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Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
1.2 Pool Pump Suction Entrapment
Prevention Guidelines
Section 2. General Description
2.1 Introduction
This manual contains information for the proper
installation, operation, and maintenance of the Zodiac
E3 variable speed pump. Procedures in this manual
must be followed exactly. To obtain additional copies
of this manual, contact Zodiac®Customer Service at
1.800.688.552. For address information, see the back
cover of this manual.
2.2 Description
The E3 is a variable-speed pump that can be run from
1000 RPM to 2850 RPM. The pump provides three
separate program modes to vary the speed settings
that are accessible by a simple touch of a button. This
allows for simple operations that can greatly reduce
operating costs at a reasonable investment.
WARNING
Pump suction is hazardous and can trap and
drown or disembowel bathers. Do not use or
operate swimming pools, spa, or hot tubs if a
suction outlet cover is missing, broken, or loose.
The following guidelines provide information for
pump installation that minimizes the risk of injury
to users of pools and spas. Refer to Australian
Standard 1926.3 for further information.
WARNING
The pump is not intended for use by young children
or infirm persons unless they have been adequately
supervised by a responsible person to ensure that
they can use the pump safely. Young children should
be supervised to ensure that they do not play with
the pump.
EcoMode: 1400 RPM
CleanMode: 2150 RPM
BoostMode: 2850 RPM
NOTE: The recommended
speed setting is 1400 RPM.
Section 3. Installation
Information
3.1 Plumbing
3.1.1 Preparation Information
1. Upon receipt of the pump, check the carton
for damage. Open the carton and check the
pump for concealed damage, such as cracks,
dents or a bent base. If damage is found,
contact the shipper or distributor where the
pump was purchased.
2. Inspect the contents of the carton and verify
that all parts are included, see Section 7.1,
Replacement Parts List and Exploded View.
3.1.2 Pump Location
1. Zodiac recommends installing the pump
within three hundred millimetres (300mm)
above water level. The pump should not
be elevated more than a metre above the
water level of the pool. A check valve is
recommended on the suction line of the pump.
2. If the pump is located below water level,
isolation valves must be installed on both the
suction and return lines to prevent back ow
of pool water during any routine or required
servicing.
NOTE When the pool equipment is located below the pool
surface a leak can result in large scale water loss
or flooding. Zodiac cannot be responsible for such
water loss or flooding or damage caused by either
occurrence.
3.1.3 Pipe Sizing
3.1.3.1 Discharge Pipe
When the pump is located up to 15 metres (15m)
from the pool, the recommended Class 9 minimum
pipe size for the discharge side of the pump is ninety
millimetres (90mm) for 0.75HP and fty millimetres
(50mm) for 1-2 HP.
NOTE All pipe sizes (Class 9) are able to withstand
the pressures delivered by the pump, but not
necessarily the flow. If the pipe is too small for
the pump, or if the pump is elevated above water,
the maximum litres per minute (LPM) may not be
delivered. If this happens, the pump will develop an
air pocket (cavitation) that will make noise, and the
life of the pump may be shortened.
Figure 1. E3 Pump Controls and Modes

Page 6 ENGLISH Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
3.1.3.3 Installation Recommendations
1. If the pump is located below water level,
isolation valves must be installed on both
sides of the pump to prevent the back ow
of pool water during any routine or required
servicing.
2. FloPro Pumps come equipped with unions
on both the suction and discharge ports. This
feature simplies installation and service and
eliminates the possibility of leaks at threaded
adapters.
3. The piping must be well supported and not
forced together where it will experience
constant stress.
4. Always use properly sized valves. Zodiac
Diverter Valves and Ball Valves typically have
the best ow capabilities.
5. Use the fewest ttings possible. Each
additional tting has the effect of moving the
equipment farther away from the water.
NOTE If more than ten (10) suction fittings are needed,
the pipe size must be increased.
3.2 Electrical Installation
WARNING
Always disconnect the power source before working
on a motor or its connected load.
WARNING
Make sure that the control switch, time clock, or
control system is installed in an accessible location,
so that in the event of an equipment failure or a
loose plumbing fitting, the equipment can be turned
off. This location must not be in the same area as
the pool pump, filter, and other equipment.
3.3 Conduct Pressure Testing
WARNING
When pressure testing a system with water, air
is often trapped in the system during the filling
process. This air will compress when the system is
pressurized. Should the system fail, this trapped air
can propel debris at a high speed and cause injury.
Every effort to remove trapped air must be taken,
including opening the bleed valve on the filter and
loosening the pump basket lid while filling the pump.
WARNING
Trapped air in the system can cause the filter lid
to be blown off, which can result in death, serious
injury, or property damage. Be sure all air is properly
purged out of the system before operating. DO NOT
USE COMPRESSED AIR TO PRESSURE TEST OR
CHECK FOR LEAKS.
WARNING
Do not pressure test above 35 PSI. Pressure
testing must be done by a trained pool professional.
Circulation equipment that is not tested properly might
fail, which could result in severe injury or property
damage.
WARNING
When pressure testing the system with water, it is
very important to make sure that the pump basket lid
is completely secure.
1. Fill the system with water, using care to
eliminate trapped air.
2. Pressurize the system with water to no more
than 35 PSI.
3. Close the valve to trap pressurized water in
the system.
4. Observe the system for leaks and/or pressure
decay.
Lid with
Locking
Ring
and
Seal
Pump
Debris
Trap
Basket
(Inside
Pump)
Figure 2. Exploded View of Pump

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Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
Section 4. Operation
4.1 Start-up
CAUTION
Never run the pump without water. Running the
pump “dry” for any length of time can cause severe
damage to both the pump and motor and will void
the warranty.
If this is a new pool installation, make sure all piping
is clear of construction debris and has been properly
pressure tested. The lter should be checked for
proper installation, verifying that all connections and
clamps are secure according to the manufacturer’s
recommendations.
WARNING
To avoid risk of property damage, severe personal
injury or death, verify that all power is turned off
before starting this procedure.
1. Release all pressure from the system and open
the lter pressure release valve.
2. Depending on the location of the pump, do
one of the following:
- If the pump is located below the water level of
the pool, open the lter pressure release valve
to prime the pump with water.
- If the pump is located above the water level
of the pool, remove the lid and ll the basket
with water before starting the pump.
3. Prior to replacing the lid, check for debris
around the lid o-ring seat. Debris around the
lid o-ring seat will cause air to leak into the
system and will make it difcult to prime the
pump.
4. Hand-tighten the lid to make an air tight seal.
Do not use any tools to tighten the lid: hand-
tighten only. Make sure all valves are open
and the unions are tight.
5. Restore power to the pump.
6. Once all the air has left the lter, close the
pressure release valve.
7. The pump should prime. The time it takes
to prime will depend on the elevation and
length of pipe used on the suction supply
pipe. See Section 3.1.3.3, Installation
Recommendations, for proper elevation and
pipe size.
8. If the pump does not prime and all the
instructions to this point have been followed,
check for a suction leak. If there is no leak,
repeat Steps 2 through 7.
9. For technical assistance, call Zodiac Technical
Support at 1.800.688.152.
4.2 Operational Controls
IMPORTANT
Due to an undervoltage protection placed in the
software to protect the internal electronics, there
may be an error during motor startup. If this
situation occurs, simply let the motor sit without
power for approximately 3-5 minutes to allow the
capacitors to completely drain before restarting the
motor.
NOTE
- If power is removed, motor will return to the last
speed selected when power is restored.
- Motor will remember ON/OFF states.
- If there is a fault, Error LED will blink. See Section
6 more information on fault codes.
Normal Operation Mode
- For LOW speed, the LED will flash when selected
until the priming cycle is complete. Once complete,
the LED will be steadily lit.
- For MEDIUM speed, , the LED will flash when selected
until the priming cycle is complete. Once complete,
the LED will be steadily lit.
- For HIGH speed, , the LED will flash when selected
until the priming cycle is complete. Once complete,
the LED will be steadily lit.
- To turn OFF (LED will flash when selected)
On start up, the LED for the selected speed will flash for
approximately 1 minute as the pump goes through a priming
cycle. When the cycle is complete, the LED for the selected
speed will be steadily lit.
Figure 3. Normal Operation Mode Controls

Page 8 ENGLISH Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
Section 5. Service and
Maintenance
5.1 Routine Maintenance
WARNING
To avoid risk of property damage, severe personal
injury or death, verify that all power is turned off
before starting this procedure.
Inspect the pump debris tray basket for debris by
looking through the clear pump lid. Remove any
debris, because as debris accumulates, it will begin to
block the ow of water through the pump. Keep the
basket clean to improve the performance of the pump.
1. Turn off the power to the pump. If the pump
is located below the water level, close the
isolation valves on the suction and discharge
sides of the pump to prevent backow of
water.
2. Turn the lid’s locking ring counter-clockwise
until ‘START’ aligns with the ports. Carefully
remove the lid. (A tool may used for
leverage.)
CAUTION
A misaligned basket will cause the lid to be
improperly seated, allowing an air leak, which could
result in pump damage.
3. Lift the basket out of the pump.
4. Dispose of the debris and thoroughly clean
the basket, making sure all the holes are open.
Using a garden hose, spray the basket from
the outside to help clear the holes. Remove
any remaining debris by hand.
5. Replace the basket in the pump by aligning
the opening with the suction pipe. If aligned
properly, the basket will drop easily into
place. Do not force it into place.
6. Remove the lid seal and remove debris around
the lid seal seat, as this can allow air to leak
into the system. Clean the lid seal and place it
on the lid.
7. Replace the lid with locking ring. Hand-
tighten the lid to make an air-tight seal. Do
not use any tools to tighten the lid: hand-
tighten only.
8. Verify that all valves have been returned to the
proper position for normal operation.
9. Open the pressure release valve on the lter,
and make sure it is clean and ready for
operation.
10. Turn on the power to the pump. Once all the
air has been evacuated from the lter, close
the pressure release valve.
Zodiac Group Australia Pty Ltd strongly recommends
that you call a qualied service technician to perform
any repairs on the lter/pump system. To locate
a qualied technician, visit www.zodiac.com.au
and click on “Pool Maintenance - Zodiac Product
Support”.
Adjustable Speed Mode
- to decrease speed by 50 rpm increments with
1000 rpm as the minimum limit.
- to save current speed setting and return to normal
operation mode. Note: Must hold for 10 seconds to
save required speed setting).
- Each press will increase increase ECO and CLEAN
speed by 50 RPM. HIGH speed is top speed of
2850 rpm, and can only be adjusted by 50 rpm
if already adjusted.
- will cancel change and revert back to original speed,
returning to normal operation mode.
- Press and hold the chosen speed button to be adjusted
for approximately 3-5 seconds (until LED begins to flash)
to switch to Adjustable Speed Mode.
Press Button:
Figure 4. Adjustable Speed Mode Operations

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Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
Section 6. Troubleshooting and Repair
Zodiac Group Australia Pty Ltd strongly recommends that you call a qualied service technician to perform any
repairs on the lter/pump system. To locate a qualied technician, visit www.zodiac.com.au and click on “Pool
Maintenance - Zodiac Product Support”.
6.1 Troubleshooting
Symptom Possible Cause/Solution
The cleaning/
circulating system
is not operating
correctly.
Verify that skimmer baskets, pump basket and other screens are clean. Clean as
necessary.
Check filter and clean as necessary.
Check valve positions. Adjust as necessary.
NOTE Multiple pieces of equipment operating at one time (for example, waterfalls, spa
jets, and surface returns) will affect the proper operation of the cleaning system.
Check the cleaning system manual to ensure that the system is adjusted according to
the manufacturer's recommendations.
Bubbles are present
in the pump basket.
Air is in the system. Check the pool or spa water level to ensure that it is at the proper
level and air is not being drawn into the suction piping. If the water is at the normal level,
turn off the pump. Turn the lid's locking ring counter-clockwise until 'START' aligns with
the ports. Remove the lid and check for debris around the lid seal seat OR improper
installation of the lid seal, as either condition will allow air to leak into the system. Clean
the lid seal and replace it on the lid. Replace the lid on the pump housing. Align 'START'
with the ports and turn the locking ring clockwise until 'LOCKED' aligns with the ports.
Hand-tighten the lid to make an air-tight seal. Do not use any tools to tighten the lid.
Turn the pump back on.
Air leaks are still
present.
Check the suction side piping union. While the pump is running, try to tighten the union.
If this does not stop the air leak, turn off the pump. Loosen both unions and slide the
pump out of the way. Remove, clean, and re-install both union o-rings.
Reposition the pump next to the piping and secure the union nuts to the pump. With
clean union o-rings, hand-tightening of the unions should create a seal. If the unions still
do not seal, gently tighten with a large pair of tongue-and-groove pliers.
Do not over-tighten.
There is no air in
the system, but the
pressure is still low.
It is possible that debris is caught in the pump impeller. The pump impeller moves the water,
and the vanes in the impeller can become blocked with debris. See Section 6.2, Service
Technician Maintenance, 6.2.1, Blocked Impeller, in this manual for more information.
There is no debris
blocking the impeller
and the pressure is
still low.
The pump impeller and diffuser are showing signs of normal wear. Have a qualified
service technician check the impeller and diffuser and replace as necessary.
If the pump is part of a relatively new installation, it could be an electrical problem.
Contact a qualified service technician. Have the technician check for loose electrical
connections and check the voltage at the pump motor while it is in operation. The
voltage must be within 10% of the motor's data plate rating. If the voltage is not within
10%, contact a qualified electrician and/or the local power service provider.
Pump seal is leaking air. Have a qualified service technician replace the seal.
The pump is leaking
water between the
motor and pump
body.
This is caused by a damaged or failed mechanical seal. Replace the seal. See Section
6.2, Service Technician Maintenance, 6.2.3, Mechanical Seal Replacement, in this
manual.
The pump gets
hot and shuts off
periodically.
Make sure that there is adequate room around the motor to circulate air and keep the
motor cool. Have a qualified electrician check for loose connections and check the
voltage at the pump motor while it is in operation. The voltage must be within 10% of the
motor's data plate rating. If the voltage is not within 10%, contact a qualified electrician
and/or the local power service provider.

Page 10 ENGLISH Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
6.2 Fault Codes
Blinks Fault Cause
1 Micro
Controller
failure
Micro controller is
continually rebooting.
2 Mains
under
voltage
The mains voltage has
dropped below 180 volts AC
running.
Note: If this fault is active,
the controller will reboot
after voltage rises above
209 volts AC for at least 6
seconds.
3 Temperature Over temperature (100° C)
Under temperature (-20° C)
4 Over-current
trip
Over current protection has
been tripped.
5 Mains over
voltage
Main voltage has risen
above 269 volts AC.
6 Output shaft
seized
Motor failed to start.
Motor was stopped.
7 Self check One or more of the self tests
failed either at startup or
during operation.
8 Motor fault One or more of the phases
has become disconnected.
10 Other fault Any fault not covered by
other codes.
Note: Presently, no faults
should trigger this indicator.
none EEPROM
load failure
Checksum failed while
loading EEPROM to
memory.
6.3 Service Technician Maintenance
WARNING
This pump must be serviced by a professional
service technician qualified in pool/spa installation.
The following procedures must be followed exactly.
Improper installation and/or operation can create
dangerous electrical hazards, which can cause high
voltages to run through the electrical system. This
can cause property damage, serious personal injury,
and/or death. Improper installation and/or operation
will void the warranty.
6.3.1 Blocked Impeller
WARNING
Before servicing the pump, switch off the circuit
breakers at the power source. Severe personal
injury or death may occur if the pump starts
while your hand is inside the pump.
1. Turn off the pump. Switch off the circuit
breaker to the pump motor.
2. Remove the lid and basket.
3. Look inside the pump for debris. Remove any
debris found inside.
4. Replace the basket and lid.
5. Switch on the circuit breaker to the pump
motor.
6. Turn on the pump, and see if the problem is
solved.
7. If the impeller is still blocked with debris and
it is not possible to remove the debris using
Steps 2 through 4, the pump will need to be
disassembled in order to access the inlet and
outlet of the impeller.
6.3.2 Impeller Removal and Replacement
WARNING
Before servicing the pump, switch off the circuit
breakers at the power source. Severe personal
injury or death may occur if the pump starts
while your hand is inside the pump.
1. Turn off the pump. Switch off the circuit
breaker to the pump motor. If you are not
replacing the motor, do not disconnect the
electrical wiring.
NOTE If you are replacing the motor, Zodiac strongly
recommends that a qualified service technician or
electrician properly disconnect the electrical wiring
at the pump motor.
2. Turn off any valves to prevent pool water
from reaching the pump. Drain the water from
the pump by loosening the unions or removing
the drain plugs.
3.
Using a 9/16” wrench, loosen the bolts connecting
the pump body to the motor backplate. See Figure
13.
4. Pull the motor and backplate out of the pump
body. Remove the pump body o-ring. The
impeller is connected to the motor shaft.
5. Using a No. 1 Phillips screwdriver, remove
the two (2) screws holding the diffuser. (The
diffuser is the cover over the impeller.) Then
remove the diffuser (See Figure 14).
6. Access the inlet and outlet of the impeller and
remove any debris.

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Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
7. Hold the motor shaft with a ¼” hex allen
wrench while unscrewing the impeller from
the motor shaft with your hand. Turn the
impeller counter-clockwise to unscrew it. See
Figure 15.
8. Inspect the impeller and diffuser for signs of
rubbing and/or damage.
6.3.2.1 Impeller Reassembly
1. Press the new carbon face seal half (see
Figures 16 and 17) on the impeller shaft using
a twisting motion. Make sure the carbon
surface is facing toward the ceramic ring in
the backplate.
CAUTION
Very Important! To prevent damage to the seal,
grasp the lower portion of the seal (opposite the
carbon face) when installing it.
Fan Cover
Bolts (6)
Motor
Backplate
Pump
Body
Figure 13. Remove the Pump Housing
Backplate
Diffuser
Screws (2)
O-ring
Figure 14. Remove the Diffuser
Figure 15. Remove the Impeller
Backplate
Mechanical
Seal
Impeller
with
Sleeve
Bolts (8)
Washers (8)
Backplate O-ring
Mechanical Seal
Impeller
Diffuser
Diffuser
Screws (2)
Diffuser
O-ring
Impeller
Sleeve
Figure 16. Diffuser and Impeller Exploded View
Figure 17. Mechanical Seal
Carbon Seal Surface
• Ceramic Face Seal
•
Backplate Seal
• Carbon Face/ Spring
Side of Seal
• Impeller Side of
Mechanical Seal

Page 12 ENGLISH Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
NOTE To assist assembly, use only water or soapy water
as a lubricant. Any other lubricant will destroy the
seal after a short period of time.
NOTE Be sure to keep the seal and mating parts clean.
2. While holding the motor shaft with a large
at-bladed screwdriver, thread the impeller
onto the motor shaft. Hand-tighten the
impeller until it is secure. Do not overtighten.
3. Install the impeller sleeve on the impeller.
4. Place the diffuser over the impeller, using care
to insert alignment pins into the correct holes.
The molded-in arrow must point toward the
handle of the backplate.
5. Replace the two (2) small Phillips-head
screws. Tighten the screws to draw the
diffuser against the motor backplate.
6. To help prevent an airleak into the system,
make sure the diffuser o-ring, o-ring groove,
and o-ring seal area are clean and free of
debris. If you removed the diffuser o-ring,
make sure you install it into the groove you
removed it from. (See Figure 18.) If grease is
used to retain the o-ring, it must be silicone
based. Do not use petroleum-based grease. It
will destroy the o-ring.
8. Tighten the screws lightly in a crossing “X”
pattern using a 9/16” wrench. Start with the
inner (middle) four (4), then the outer (top and
bottom) four (4) to draw the backplate to the
body in an even manner. Once all the screws
are snug, torque in the same order to 13 Nm.
9. If the pump is located above the water level
of the pool, remove the lid and ll the basket
with water before starting the pump.
10. To help prevent an air leak into the system,
remove any debris around the lid seal seat.
11. Hand-tighten the lid to make an air tight seal.
Do not use any tools to tighten the lid.
12. Open the pressure release valve on the lter
and make sure it is clean and ready for
operation.
13. Switch on the circuit breaker to the pump
motor.
14. Turn on the pump and check the system for
normal operation.
15. Once all the air has left the lter, close the
pressure release valve.
6.3.3 Mechanical Seal Replacement
NOTE This is a two-part replacement process. The
mechanical seal must be replaced as a set.
NOTE Refer to Figure 19 for an illustration of the location
of the mechanical seal and impeller.
CAUTION
Do not damage the ceramic or carbon surfaces of
the seals. If the surfaces are damaged, leaks will
occur.
1. To access the mechanical seal, see Section
6.3.2, Impeller Removal and Replacement.
Diffuser
Diffuser O-ring
Pump Body
Figure 18. Pump Body and Diffuser Exploded
View
Figure 19. Backplate, Impeller, Diffuser,
Mechanical Seal Exploded View
Diffuser O-ring
Screws (2)
Diffuser
Impeller with Sleeve
Mechanical Seal
Backplate O-ring
Backplate
7. Slide the diffuser into the mating hole in the
pump body. While supporting the motor, start
two (2) screws on opposite sides. (This will
hold the motor in position while you start the
other six (6) screws.)

Page 13
ENGLISH
Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
2. Remove the carbon face seal half from the
impeller shaft (See Figure 15). This is a
spring-loaded seal. Grasp the portion of the
seal closest to the impeller body and pull the
seal off, using a twisting motion.
3. Remove the motor from the backplate,
following the steps in Section 6.3.4, Motor
Replacement.
4. Place the backplate o-ring side down and
force the ceramic seal out using a screwdriver
or drift.
5. Turn the backplate o-ring side up and insert
the new ceramic seal side into the backplate.
Use great care to press the seal in squarely
with your ngers. The ceramic is easily
damaged and must be pressed in using only
your ngers or soft tools. Do not use any
lubricant other than water or soapy water.
6. Install the backplate by following the relevant
steps in Section 6.3.2.1, Impeller Reassembly.
7. Install the motor by following the steps in
Section 6.3.4, Motor Replacement.
6.3.4 Motor Replacement
WARNING
To ensure continued safety and reliable operation,
Zodiac®requires that you replace the motor with a
motor listed in the spares list that has the identical
HP rating and service factor (Zodiac approved
only).
1. Have a qualied service technician or
electrician properly disconnect the electrical
wiring at the pump motor.
WARNING
ELECTRICAL SHOCK HAZARD
Turn off power to the FloPro pump electrical circuit
before starting the procedure. Wait five (5) minutes
after power is disconnected before opening motor.
Failure to comply may cause a shock hazard,
resulting in severe personal injury or death.
2. To detach the pump housing from the motor,
see Section 6.3.2, Impeller Removal and
Replacement.
3. Note the alignment of the backplate to the
motor, as shown in Figure 20. Place the
backplate motor assembly o-ring side down,
unscrew the four 9/16” screws, and remove
the motor.
4. Place the motor on the backplate so that the
opening in the motor faces the bottom of the
backplate. The electronics controller on the
motor should be at the 12 o’clock position.
5. Replace the four (4) bolts and washers
holding the backplate to the motor and torque
to 20 Nm. See Figure 20.
6. To reassemble the backplate assembly to
the housing, see Section 6.3.2.1, Impeller
Reassembly.
7. If the pump is located above the water level
of the pool, remove the lid and ll the basket
with water before starting the pump.
8. To help prevent an air leak into the system,
remove any debris around the lid seal seat.
9. Hand-tighten the lid to make an air tight seal.
Do not use any tools to tighten the lid.
10. Open the pressure release valve on the lter
and make sure it is clean and ready for
operation.
11. Have a qualied service technician or
electrician properly connect the electrical
wiring at the pump motor.
12. Turn on the electrical power to the pump
motor using your controller and check the
system for normal operation.
13. Once all the air has left the lter, close the
pressure relief valve.
NOTE Zodiac recommends that the mechanical seals be
replaced at the same time the motor is replaced.
See Section 6.3.3, Mechanical Seal Replacement,
for details.
Figure 20. Backplate Assembly
Motor
Hardware
Kit
Motor
Backplate
Backplate
Hardware

Page 14 ENGLISH Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
Section 7. Product Specications and Technical Data
7.1 Replacement Parts List
To order or purchase parts for Zodiac®pumps, contact your nearest Zodiac dealer. If the Zodiac dealer cannot
supply you with what you need, contact Zodiac technical support at 1.800.688.152, or send an e-mail message to
[email protected].
Key
No. Description
Order
Part No.
1 E3, MOTOR & HARDWARE, WFHP 1.0HP R0755900
2 BACKPLATE, WFHP R0734900
3 IMPELLER, WFHP, 1.0HP R0735100
4 DIFFUSER, WFHP R0735400
5MECHANICAL SEAL, CARBON & CERAMIC (1 SET) R0735500
6 E3,PUMP BODY, WFHP R0755000
7 FOOT, MOTOR, FHP SERIES, WFHPM (AUSTRALIA) A0133001
8 LID W/LOCKING RING, WFHP (LID W/LOCKING RING & LID O-RING R0736500
9 PUMP DEBRIS FILTER BASKET, WFHP R0736600
10 DRAIN PLUG W/O-RING, WFHP R0735700
11 TAIL PIECE, O-RING & UNION NUT R0735800
12 LID O-RING, WFHP R0736700
13 BACKPLATE O-RING, WFHP S0137300
14 O-RING, EPDM, 70 DURO A568 2-340 S0119000
15 DIFFUSER/IMPELLER HARDWARE R0735900
16 BACKPLATE HARDWARE, WFHP R0736000
17 MOTOR HARDWARE KIT R0736100
7.2 General Specications
Supply Rated 240V AC, 50 hz, 6.5 Amps
Installed Load 1,000 W Max.
Max Head 19.1M
IP Rating IPX5

Page 15
ENGLISH
Zodiac FloPro™E3 3-Speed Variable Pump |Installation & Operation Manual
7.3 Exploded View
8
9
12
6
11
18
10
4, 14
4
11
3
2, 5
2, 3, 4, 6,
13, 14, 15
2
2, 16 1, 17
7
1
4, 15
19

©2018 Zodiac Pool Systems LLC ZODIAC®is a registered trademark of Zodiac International,
S.A.S.U., used under license. All trademarks referenced herein are the property of their respective
owners.
H0394700 Rev D
Zodiac Group Australia.
219 Woodpark Road
Smithfield, NSW AU 2164
1.800.688.552 | www.zodiac.com.au