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Ningbo FPP-72743 - CHAPTER Seven: Troubleshooting; Motor Will NOT Start; Motor Shuts OFF; Motor Hums, But Does NOT Start

Ningbo FPP-72743
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WARNING Separation Hazard.
1.
Do not purge the system with compressed air. Purging the system with compressed air can cause components to
explode, with risk of severe injury or death to anyone nearby. Use only a low pressure (below 5 PSI), high volume
blower when air purging the pump, filter, or piping.
2.
Allowing the pump to freeze will void the warranty.
3.
Use ONLY propylene glycol as antifreeze in your pool system. Propylene glycol is nontoxic and will not damage
plastic system components; other anti-freezes are highly toxic and may damage plastic components in the system.
4.
Drain all water from pump and piping when expecting freezing temperatures or when storing pump for a long time
(see instructions below).
5.
Keep motor dry and covered during storage. To avoid condensation/corrosion problems, do NOT cover or wrap
pump with plastic film or bags.
Storing Pump For Winterization
WARNING To avoid dangerous or fatal electrical shock hazard, turn OFF power to motor before draining pump.
Failure to disconnect power may result in serious personal injury or death.
1.
Drain water level below all inlets to the pool.
2.
Remove drain plugs from bottom of strainer body, and remove strainer cover from strainer housing.
3.
Disconnect pump from mounting pad, wiring system (after power has been turned OFF), and piping system.
4.
Once the pump is removed of water, re-install the strainer cover and drain plugs. Store pump in a dry area.
Shaft Seal Change Instructions
IMPORTANT SAFETY INSTRUCTIONS, PLEASE READ AND FOLLOW ALL INSTRUCTIONS.
When servicing electrical equipment, basic safety precautions should always be observed including the following.
Failure to follow instructions may result in injury.
A.
To reduce risk of injury, do not permit children to use this product.
B.
Disconnect all electrical power service to pump before beginning shaft seal replacement.
C.
Only qualified personnel should attempt rotary seal replacement. Contact your local authorized Dealer or service
center if you have any questions.
D.
Exercise extreme care in handling both the rotating and the stationary sections of the two-part replacement seal.
Foreign matter or improper handling will easily scratch the graphite and ceramic sealing surfaces.
CHAPTER Seven: Troubleshooting
A.
Motor Will NOT Start Check For:
Make sure the terminal board connections agree with the wiring diagram on motor data plate label. Be sure motor is
wired for available field supply voltage (see pump operating label).
1.
Improper or loose wiring connections; open switches or relays; tripped circuit breakers, GFCI’s, or blown fuses.
Solution: Check all connections, circuit breakers, and fuses. Reset tripped breakers or replace blown fuses.
2.
Manually check rotation of motor shaft for free movement and lack of obstruction.
Solution: Refer to “Shaft Seal Change Instructions” in this manual.
3.
If you have a timer, be certain it is working properly. Bypass it if necessary.
B.
Motor Shuts OFF Check For:
1.
Low voltage at motor or power drop (frequently caused by undersized wiring or extension cord use).
Solution: Contact qualified professional to check that the wiring gauge is heavy enough.
NOTE - Your pump motor is equipped with an “automatic thermal overload protector.” The motor will automatically
shut off if power supply drops before heat damage can build up causing windings to burn out. The “thermal overload
protector” will allow the motor to automatically restart once the motor has cooled. It will continue to cut On/Off
until the problem is corrected. Be sure to correct cause of overheating.
C.
Motor Hums, But Does NOT Start Check For:
1. Impeller jammed with debris.
Solution: Have a qualified repair professional open the pump and remove the debris.
D.
Pump Won't Prime, Check For: