VARIABLE
SPEED PUMP
INSTRUCTION MANUAL
PS
PUM
READ THIS MANUAL CAREFULLY BEFORE USING
YOUR VARIABLE SPEED PUMP
8315
VARIABLE SPEED PUMP PARTS BREAKDOWN
16
1
2
7
3
4
5
a
b
c
17
10
9
6
11
13
14
8
18
12
15
PART #
DESCRIPTION
QTY
1
AC 81361
Pump Lid
1
3
AC 81434
Pump Basket
1
2
4
5
6
7A
7B
7C
8
9
10
11
12
13
14
15
16
17
18
2
MODEL #
AC 81396
AC 81937
AC 81477
AC 82015
AC 84468
AC 82538
AC 82546
AC 82562
AC 82589
AC 82597
AC 82600
AC 82619
AC 82627
AC 82643
AC 83178
AC 85847
AC 81590
Pump Lid O-Ring
Strainer Casing
Diffuser O-Ring
Diffuser Screws
Impeller 1 HP
Impeller 1.5 HP
Impeller 2 HP
Casing O-Ring
Seal Plate
Housing Washer
Housing Bolts
Seal Plate
Base Bracket
Base Support
Drain Plug
Variable Speed Motor
Base Bolt Nut
Drain Plug O-Ring
1
1
1
1
1
1
1
1
1
1
5
1
1
1
1
1
1
1
IMPORTANT SAFETY INSTRUCTIONS
NOTE All wiring should be done by a qualified electrician in accordance
to the National Electric Code and all Local Codes and ordinances.
When installing and using this electrical equipment, basic safety
precautions should ALWAYS be followed.
READ AND FOLLOW ALL INSTRUCTIONS
WARNING
1. To reduce the risk of injury, do not allow children to use this equipment
2. Connect only to a grounding type receptacle that is protected by a ground
fault circuit interrupter (GFCI).
3. Do not connect this equipment to an extension cord. To reduce the risk of
electric shock, only connect the electric cord to a properly located outlet.
4. To reduce the risk of shock, connect ground wires to the grounding screw
located in the motor.
5. To reduce the risk of shock, a bonding connector is provided for bonding
to any metal within 5 feet of the swimming pool. All local points should be
bonded with #8AWG (8.4mm2) wire.
NOTE To installer and/or operator of the swimming pool pump: the
manufacturer’s warranty will be void if the pump is improperly installed
and/or operated.
3
OPERATION AND MAINTENANCE
PUMP LOCATION
1. Locate the pump on a level surface as close to the pool as practical.
Consult local codes for minimum distances between pool and pump if
applicable.
2. The connection plumbing (hose or rigid pipe) should be direct and as free
from turns and bends as possible. Take care not to kink flexible hose.
Elbows and other fittings greatly increase friction losses.
3. Place pump on a solid foundation / base which provides a rigid and
vibration free support.
4. Protect the pump against flooding and excess moisture. Protect the motor
from foreign objects clogging the air circulation around the motor.
5. NEVER use gasoline or other flammable liquids or vapors in the vicinity
of this pump.
NOTE DO NOT store pool chemicals near this pump.
DO NOT remove any safety labels such as CAUTION / DANGER / WARNING
from this pump. Keep labels in good condition and replace any
damaged labels.
WARNING
Keep labels in good condition and replace any damaged labels
4
PUMP INSTALLATION
1. When connecting plumbing fittings to the pumps threaded ports, it is recommended
that thread seal tape (Teflon tape) be used. If the suction (intake) connection is not
sealed correctly the pump will not prime
properly and will pump only small volumes of water or no water at all.
3. Suction and discharge lines should be independently supported at a point near the
pump to avoid strains being placed on the pump.
4. It is advisable to install a union in both the suction and discharge lines in the event
the pump needs servicing or removal.
5. Before starting the pump for the first time remove the clear lid at the front of the
pump. Fill the pump strainer with water until it is level with the suction port opening.
Replace the lid making sure the lid is tight Hand
tighten only.
6. BONDING: as required by the National Electrical Code Article 680-26 the pump must
be electrically bonded to the pool structure by a solid copper conductor no smaller
than #8 AWG via the external copper bonding lug on the motor.
7. GROUNDING: Permanently ground the pump motor using a conductor of
appropriate size. Connect to the green headed screw provided inside the motor
terminal box.
NOTE DO NOT CONNECT MOTOR TO THE ELECTRIC POWER SUPPLY UNTIL
IT IS PERMANENTLY GROUNDED.
5
PUMP MAINTENANCE
• The pump requires little to no maintenance other than reasonable care and cleaning
of the strainer basket on a regular basis. The pump is equipped with a mechanical
seal. This seal may eventually come loose of a period of time, depending on running
time and water quality. If water continually leaks out, a new mechanical seal should
be installed.
• The pump is equipped with a rubber gasket that seals the strainer basket lid. This
gasket should be lubricated with water proof lubricant
(O-RING LUBE) to ensure proper seal and extend gasket life.
The gasket becomes cracked or worn (flattened) is will become necessary to replace.
WINTERIZATION
• In areas subject to freezing temperatures, it is recommended that the
pump be disconnected and stored indoors in a warm and dry location.
Remove the drain plugs from the pump housing and place them in the
strainer basket for storage.
6
ABOUT YOUR VARIABLE SPEED PUMP
This variable speed pump is designed to operate your swimming pool filtration
system as well as your spa, waterfall, cleaner, heater, salt chlorine system and other
water applications. Using the control panel, you can run your pump on one of the four
selectable preset speeds or you can adjust the pump to run at alternate speed. The
built in advanced energy conservation features of the Variable Speed pump ensure
that your filter system will operate at peak efficiency.
The Variable speed pump can run at up to eight speeds that can be adjusted to
run at specific time intervals. The Blue Torrent Variable Speed pump out performs all
conventional pumps in its class. The pump can operate at speeds as low as 450 RPM
and as high as 3450 RPM. The pump has four factory preset speeds of 750RPM,
1500 RPM, 2500 RPM and 3100 RPM.
The preset speeds can be selected using the pumps control panel and by
pressing speed 1, speed 2, speed 3 or speed 4. The control panel also has LED
indicators for speed as well as alarm indicators and error messages to warn the user
against under and over voltage, high temperature, over current and freeze protection.
The pump drive assembly of your Variable Speed pump consists of a
control panel and the system electronics that drive the motor. The drive
microprocessor controls the motor by changing the frequency of the current it
receives in addition to changing the voltage to control the rotational speed,
this system enable to pump to deliver unsurpassed energy efficiency.
VARIABLE SPEED MOTOR FEATURES:
•
•
•
•
•
•
•
Permanent Magnet Synchronous Motor (PMSM)
High efficiency – 92% at 3450 RPM – 86% at 1000RPM
Superior speed control
Low operating temperatures due to energy efficiency
Totally enclosed and fan cooled
Extremely quiet operation
Uses same technology as found in hybrid cars
7
CONTROL AND LED’S
1. SPEED 1 BUTTON / LED – Press to select speed 1 ( 750 RPM) . The LED above
the button indicates Speed 1 is active
2. SPEED 2 BUTTON / LED – Press to select speed 2 ( 1500 RPM). The LED above
the button indicates Speed 2 is active.
3. SPEED 3 BUTTON /LED – Press to select speed 3 (2500 RPM). The LED above the
button indicates Speed 3 is active
4. SPEED 4 BUTTON / LED – Press to select speed 4 (3100 RPM). The LED above
the button indicates Speed 4 is active.
5. SELECT BUTTON – Displays available menu items or enters edit mode for changing
the value on line 2 of the display
6. ESCAPE BUTTON – Moves to next level up in the menu structure, and / or stops
editing the current setting.
7. MENU BUTTON – Accesses the pump menu if the pump is stopped
8. ENTER BUTTON – Saves the current menu item setting. Press this button to
acknowledge alarms and warning alerts.
9. ARROW BUTTONS:
• UP ARROW – Move up one level in the menu or to increase a digit when
changing a setting
• DOWN ARROW – Move one level down in the menu or to decrease a digit
when changing a setting.
• LEFT ARROW – Moves the cursor left one digit when changing a setting
• RIGHT ARROW – Moves the cursor right one digit when changing a setting
8
10. QUICK CLEAN – Press Quick Clean and the pump will run at a preset speed
and duration then resume current program speed. Used for vacuuming and pool
maintenance
11. TIME OUT – When active – LED on- at the end of a “time out” preset time, the
pump will run a schedule.
12. START/STOP – Press to start or stop the pump. When the LED is on, the pump
is currently running or in a mode to start automatically
13. RESET BUTTON – Press to reset alarm or alert
LED’S
• ON – This green power LED is on when the pump is powered on
• WARNING – This LED is on if a warning condition exists
• ALARM – This RED LED is on if an alarm condition exists.
CONTROL PANEL LCD
LINE 1 – Key icon indicates password protect mode is active. If password protect has
not been enabled no key icon will be displayed
LINE 2 – Displays to current pump speed ( RPM)
LINE 3 – Count down time and Watts
LINE 4 – Current pump status
OPERATING THE PUMP
STARTING THE PUMP:
1. Be sure pump is powered on and the GREEN power LED is on.
2. Select one of the four speed buttons
STOPPING THE PUMP
1. Press the STOP button to stop the pump
SERVICING EQUIPMENT – WARNING
When servicing equipment – filters, heaters, chlorinators, etc.- Switch off the
circuit breaker to the pump BEFORE you start servicing .
9
OPERATING THE VARIABLE SPEED PRESETS
To operate the Pump at one of the four preset speeds:
1. Be sure the pump is powered on and the green power LED is on.
2. Press the SPEED button (1-4) corresponding to the desired preset speed, and
release quickly. The LED above the speed button pressed will come on.
3. Press the START button. The pump will quickly ramp up to the selected preset
speed.
Adjusting the speed
1. With the pump running, press the UP ARROW to increase speed setting
2. Press the DOWN ARROW to decrease speed setting
3. Press the ENTER button to save the speed.
PUMP OPERATING MODES
The Variable Speed Pump can be programmed three ways:
MANUAL OPERATION: Speed buttons 1-4 can be programmed for manual operation.
This means the speed button is pressed and then the start button is pressed and the pump
will run at the programmed speed for each of the 4 buttons. To operate the pump in manual
mode, press one of the 4 speed buttons and press the start /stop button to run the assigned
speed for that button. When the pump is running a manual speed setting and a scheduled
speed is set to run, the scheduled speed will take priority. When the scheduled speed time
is over the pump will revert back to the manually pressed speed. If the pump is running a
schedule and a speed button is pressed manually, the pump will run the manually selected
speed until the next scheduled speed program.
10
EGG TIMER (Duration) – Speeds 1-4 can be programmed to run for duration of time once
pressed. This means that the speed button is pressed, then the start button is pressed and
the pump will run at a programmed speed and the speed will turn off at the end of a
pre programmed amount of time.
SCHEDULE: The speed button can be programmed to turn on and off at a certain time.
The LED above the start/ stop button must be illuminated for the pump to run schedules.
When a speed is set to run in schedule mode it can still be operated manually. When a
speed is programmed to run 23 hours and 59 minutes it will not turn off.
Example: Pump start time 8:00 am pump stop time 7:59 am
NOTE When the pump is running a manual speed and password time out is activated
the pump turned off but it cannot be turned back on. Pressing the Start / Stop
button places the pump in the Running Schedule mode. It will only run speeds
that are scheduled to come on at their scheduled start time.
PUMP MENUS
SET TIME: Allows you to set the time in the pump system. This time is used to run
scheduled start and stop programs. The pump will retain the set time for
96 hours after power to pump is turned off.
To set time:
1. Check that the green power LED light is on
2. Press the Menu Button. “Settings” is displayed
3. Press the select button. Pump Address is displayed
4. Use the up or down arrow to scroll to “Set Time”
5. Press the select button. The cursor will appear in the minutes column
6. Press up or down arrow to set the time
7. Press Enter to save time setting
8. Press escape button to exit
To set AM/ PM
1. Check that the green power LED light is on
2. Press Menu button. Settings is displayed
3. Press Select button. “pump address” is displayed
4. Use the up or down arrow to scroll to “AM/ PM”
5. Press the Select button
6. Press the up or down arrow to choose between 24hr AM/PM
7. Press enter to save the setting
8. Press Escape button to exit
11
Set Temperature Unit
Use this to set the temperature to Celsius or Fahrenheit. The anti-freeze protection
feature can be set to either unit of measure
1. Check that the green power LED is on
2. Press the Menu Button. “Settings” is displayed
3. Press Select button. “Pump Address” is displayed
4. Use the up or down arrow to scroll to “Temperature Units” menu item. The factory default
setting is Fahrenheit
5. Press the select button. “F” is displayed
6. Press up or down arrow the choose between “F” Fahrenheit or “C” Celsius setting
7. Press enter to save your selection
8. Press Escape to Exit
Screen Contrast Level
The contrast level of the screen can be adjusted for low or high lighting conditions
1. Check that the green power LED is on
2. Press the Menu Button. “Settings” is displayed
3. Press Select button. “Pump Address” is displayed
4. Use up or down arrow to scroll to “Contrast Level”
5. Press select button. Screen will show contrast setting number. The default is “15”
6. Press select button to change setting. Number will highlight
7. Press enter button to save selection
8. Press Escape button to exit
Setting Language
1. Check that the green power LED is on
2. Press the Menu Button. “Settings” is displayed
3. Press Select button. “Pump Address” is displayed
4. Use up or down arrow to scroll to “Language”
5. Press select button to access menu
6. Press select to highlight current language
7. Press enter button to select the desired language
8. Press escape button to exit
SET MINIMUM SPEED
The minimum speed can be set anywhere from 450 PRM to 1700 RPM. The default
speed is 450 RPM.
1. Check that the green power LED is on
2. Press the Menu Button. “Settings” is displayed
3. Press Select button. “Pump Address” is displayed
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4. Use up or down arrow to scroll to “Set Min. Speed”
5. Press Select button to change the setting. The cursor will appear in the first number
column
6. Press up or down arrow to change the pumps minimum speed setting from 450 RPM
to up to 1700 RPM
7. Press Enter button to save setting
8. Press Escape button to exit
SET MAXIMUM SPEED
The maximum speed can be set anywhere from 1900 PRM to 3450 RPM. The default
speed is 3450 RPM
1. Check that the green power LED is on
2. Press the Menu Button. “Settings” is displayed
3. Press Select button. “Pump Address” is displayed
4. Use up or down arrow to scroll to “Set Max. Speed”
5. Press Select button to change the setting. The cursor will appear in the first number
column
6. Press up or down arrow to change the pumps maximum speed setting from
1900 RPM to up to 3450 RPM
7. Press Enter button to save setting
8. Press Escape button to exit
CAUTION THE MAXIMUM FLOW RATE SETTING SHOULD BE SET SO THE
SYSTEM NEVER OPERATES AT OR ABOVE 0.635 METER VACUUM.
SETTING PASSWORD
When the password feature is enabled, the pump will enter into password protection
mode for a pre programmed amount of time after the last button is pressed. The entered
password is any combination of four (4) digits.
1.
Check that the green power LED is on
2.
Press the Menu Button. “Settings” is displayed
3.
Press Select button. “Pump Address” is displayed
4.
5.
Use up or down arrow to scroll to “Password”
Press the select button. The default setting is “Disabled”
6.
Press the select button to change the setting
7.
Press the up or down arrow to change the setting to “Enabled”
8.
Press the enter button to save the setting
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9. Press the down arrow button. “Password timeout” is displayed
10. Press select to change time from 1 minute to up to 6 hours
11. Press the enter button
12. Press down arrow button. Enter password is displayed
13. Press Select button to change setting
14. Press left or right arrow button to move cursor and move up and down arrow to change
the password to desired setting
15. Press enter to save setting
16. Press escape to exit
PASSWORD PROTECTION
The default setting is 1111 , which means the pump does have password protection
straight from the factory. When this feature is enabled for a preset amount of time after the
last button is pressed, the pump will prompt the user for a password before allowing access
to the control panel and buttons. The password must be a 4 numeric digit password.
• When the pump is password protected it can always be turned off by pressing the Start/
Stop button
• When running in the manual mode it cannot be turned back on with the press of the
Start / Stop button
• Pressing the start/stop button when the pump is off will return it back to the Running
Cycles Mode and will run at the next scheduled run time. If the present time is within
the scheduled run time the pump will run at the scheduled speed
• All functions including programming are disabled in Password protection mode
• If any buttons other than Start/ Stop are pressed, the screen reads enter password
• When Password Protection is enabled there is a Key icon on the screen
CHOOSING WORK MODE
The pump has three operating modes: MANUAL / EGG TIMER / SCHEDULE
1. Press Menu button. “Settings” is displayed
2. Use the up or down arrow to scroll to” WORK MODE”
3. Press the select button. “Manual” is displayed
4. Use the up or down arrow to choose mode
5. Press Enter button to save the setting
6. Press escape button to exit
14
MANUAL WORK MODE
1. Press the Menu button. ‘Settings” is displayed
2. Us the up or down arrow to scroll to manual
3. Press the select button “Manual speed 1” is displayed
4. Use the up or down arrow to choose Manual speed 1, 2, 3 or 4
5. Press select button. Set speed to be displayed, then to change the speed
6. Press enter to save setting
7. Press escape to exit
EGG TIMER MODE
1. Press the Menu Button. “Settings” is displayed
2. Use to up or down arrow to scroll to Egg timer
3. Press select. “Egg Speed” is displayed
4. Use the up or down arrow to choose ‘Egg Speed” , “Egg Time”
5. Press select button and set either speed or time
6. Press enter button to save setting
7. Press escape to exit
SCHEDULE MODE
1. Press the Menu button. ‘Settings” is displayed
2. Use the up or down arrow to scroll to schedule
3. Press the Select button. “Start Cycle 1” is displayed
4. Use the up or down arrow to choose what cycle to start or stop
5. Press the select button. Then set the start time. Stop time or speed
6. Press the Enter button to save the setting or cancel any changes press escape button to
exit without saving
7. Press Escape to exit
QUICK CLEAN
This feature can be used to ramp up the pump to a higher RPM for vacuuming,
cleaning, adding chemicals or extra skimming . Press the quick clean button and then the
Start/ Stop button to start the pump and reset the duration of time. When the quick Clean
cycle is over it will resume regular schedules and will be in “Running Schedules” mode.
1. Check that the green power LED is on
2. Press the Menu button. “Settings” is displayed
3. Use the up or down arrow button to scroll to “FEATURES”
4. Press the select button. “Timeout” is displayed
5. Use down arrow. ‘Quick Clean” is displayed
15
6. Press the select button. “Set speed” is displayed
7. Press select button. The RPM column will highlight
8. Press up or down to change speed
9. Press enter to save speed setting
10. Press the down arrow. “Time Duration” is displayed
11. Press Select button. The cursor will appear in minutes column
12. Use up or Down arrow to change time
13. Press Enter to save setting
14. Press Escape to exit
TIME OUT MODE
This feature keeps the pump from running for a programmable amount of time. This
feature can be used to allow newly glued pipe joints time to dry. When this features time is
up, the pump will be in the “running schedule” mode.
1. Check that the green power LED is on
2. Press the Menu button. “ Settings” is displayed
3. Use the down arrow to scroll to “Features”
4. Press the select button. “ Timeout” is displayed
5. Press the select button. The Minutes column will highlight
6. Press the left arrow to scroll to the hours setting. Time can be set from 1 minute
to 10 hours
7. Press enter button to save setting
8. Press escape to exit
ANTI FREEZE
This feature will allow you to set a speed (450 RPM to 3450RPM) that will run when
the pump goes into anti freeze mode. The pump senses air temperature, it does not sense
water temperature.
1. Check that the green power LED is on
2. Press the Menu button. “Settings” is displayed
3. Use the down arrow button to scroll to “Anti Freeze”
4. To disable anti freeze press select button. Enabled will highlight
5. Use the up arrow button. Disabled is displayed
6. Press enter button
7. To program anti Freeze
8. Press down arrow button. Set speed is displayed. Factory default is 1000RPM
9. Press select to change setting. The cursor will highlight first column
10. Use up or down arrow to select speed
16
11. Press enter to save setting
12. Press down arrow button. “Pump Temperature” is displayed
13. Press select to change setting (default is 40 Degrees F)
14. Press enter to save setting
15. Press escape to exit
ALERTS AND WARNINGS
The pump displays all alerts and warnings on the control panel. When an alarm or
warning condition exists, the corresponding LED will be lit on the display. All control panel
buttons are disabled until the alarm or warning is acknowledged with the ENTER button.
Press the RESET button to clear the alarm once the fault condition has been resolved.
POWER OUT FAILURE – Incoming supply voltage is less than 170 VAC.
PRIMINZG ERROR – If the pump is not defined as primed within the maximum priming time
it will stop and generate a priming alarm for 10 minutes, then attempt to prime again. If the
pump cannot prime within 5 attempts it will generate a permanent alarm and have to be
manually reset.
OVERHEAT ALERT – If the drive temperature gets over 103 Degrees Fahrenheit the pump
will slowly reduce speed until the temperature condition clears.
ANTI FREEZE – When active, the motor will run at the preset RPM until the drive
temperature increases above the minimum.
OVER CURRENT – Indicates that the drive is overloaded or the motor has an electrical
problem. The drive will restart 20 seconds after to over current condition clears.
OVER VOLTAGE – Indicates excessive supply voltage or and external water source is
causing the pump and motor to rotate thereby generating excessive voltage in the drives
internal DC buss. The drive will restart 20 seconds after the over voltage condition clears.
17
TROUBLE SHOOTING GUIDE
PROBLEM
Pump failure
Reduced capacity
and/or head.
18
POSSIBLE CAUSE
SOLUTION
Pump will not prime Air leak in suction.
PRIME ERROR may
be displayed
Check suction piping and valve glands
on any suction gate valves. Secure lid
on pump strainer pot and be sure lid
gasket is in place. Check water level to
be sure skimmer is not drawing air.
Be sure the suction lines, pump.
Pump will not prime Not enough water
Strainer, and pump volute are
full of water.
Pump does not come
out of prime
Adjust prime sensitivity to a higher
setting (default setting is 1%).
Pump stainer gasket
is clogged
Clean pump strainer pot.
Pump strainer gasket
is defective
Replace gasket.
Air pockets or leaks
in suction line.
PRIME ERROR may
be displayed
Check suction piping and valve glands
on any suction gate valves.
Turn off electrical power to the pump.
Clogged impeller.
PRIME ERROR may
be displayed
Remove the (6) bolts that holds the
housing (strainer pot/volute) to seal plate.
Slide the motor and seal
plate away from the volute.
Clean debris from impeller. If debris
cannot be removed, complete the
following steps:
1. Remove diffuser and o-ring.
2. Remove left hand thread anti-spin
bolt and o-ring.
3. Remove, clean and reinstall impeller.
4. Reinstall anti-spin bolt and o-ring.
Reinstall diffuser, and o-ring.
Reinstall motor and seal plate into volute.
Reinstall clamp band around seal plate
and volute and tighten securely.
PROBLEM
POSSIBLE CAUSE
Pump strainer pot
clogged. PRIME
ERROR may be
displayed
Clean suction trap.
Air in system
Bleed air from filter. Ensure that air
bubbles are not visible coming into
pump pot.
Suction lift above
design limits
Blocked suction
Blocked discharge
Pump trips and
restarts
constantly.
Inadequate
circulation
SOLUTION
Insert vacuum gauge into pump port
connection port. Confirm vacuum level
is 25 in. mercury (hg) or less.
Stop pump and clear blockage.
System flow too high.
System changing flow
too quickly.
In floor cleaning
system issues
Reduce system flow. Change speed.
Reduce water flow. In floor cleaning
systems must be designed with
balanced hydraulic losses on all legs.
Priming not enabled
Enable priming from the “PRIMING”
menu.
Issues related to other
equipment, such as
Heat Pumps and
Heaters with internal
valves that vibrate
Lowering speed below 200 RPM
may resolve the issue or addition of
external manual valve controls, may
resolve issue.
Filter or pump basket
dirty
Check trap basket; if plugged, turn
pump off and clean basket.
Suction/discharge
piping is too small.
Speed is set too slow
for proper filtration
cycle
Check and clean pool filter.
Increase piping size.
Increase filtration run time
19
PROBLEM
Electrial
Problem
Mechanical
Troubles and
Noise.
20
POSSIBLE CAUSE
SOLUTION
Could appear as a
“Low Voltage” alarm.
PRIME ERROR may
be displayed
Check voltage at motor terminals and
at panel while pump is running. If low,
see wiring instructions or consult power
company. Check for loose connections.
Could appear as “Over
Heat” alert.
PRIME ERROR may
be displayed
Check line voltage; if less than 90%
or more than 110% of rated voltage
consult a licensed electrician. Increase
ventilation. Reduce ambient
temperature. Tighten any loose wiring
connections. Motor internal terminal
overload protector is open. Motor runs
too hot. Turn power to motor off.
Check for proper voltage.
Check for proper impeller or impeller
rubbing.
The pump motor is
running but with loud
noise
If suction and discharge piping are not
adequately supported, pump assembly
will be strained. Do not mount pump on
a wooden platform! Securely mount
on concrete platform for quietest
performance.
Foreign matter (gravel,
metal, etc.) in pump
Disassemble pump, clean impeller,
follow
Impeller
Pump service instructions for
reassembly.
Cavitation
Improve suction conditions.
Increase pipe size.
Decrease number of fittings.
Increase discharge pressure.