Electric Motor Care; Troubleshooting - Waterco HYDROSTAR MK3 Owner's Manual

Electric Motor Care

a) Protect from heat
• Shade the motor from the sun.
• Any enclosure must be well ventilated to prevent overheating.
• Provide ample cross ventilation.
b) Protect against contamination
• Protect from any foreign matter.
• Do not store (or spill) pool chemicals near the motor.
• Avoid sweeping or stirring up dust near the motor while it is operating.
• If a motor has been damaged by dirt it voids the motor warranty.
c) Protect against moisture
• Protect from splashing pool water.
• Protect from the weather.
• Protect from lawn sprinklers.
• If a motor has become wet, let it dry before operating. Do not allow the
pump to operate if it has been flooded.
• If a motor has been damaged by water it voids the motor warranty.
d) Regularly verify:
• That the mechanical parts and support screws of the pump are correctly attached.
• The position, attachment and condition of the supply cables and insulating parts.
• The temperature of the motor.
• Whether the pump is vibrating abnormally.
!
DO NOT wrap with plastic or other airtight materials. The motor may be covered during a
storm, for winter storage, etc. but never when operating or set up for automatic operation.
conditions may occur, run your filtering.
CAUTION

TROUBLESHOOTING

Waterco strongly recommends you have a qualified service technician service your pump.
However, many problems may be solved by consulting the table below.
SYMPTOMS PROBABLE CAUSE
1. PUMP WILL NOT Suction air leak
PRIME
No water in the pump
Closed valves or blocked lines
2. MOTOR WILL NOT No power to motor
RUN
Pump jammed
3. LOW FLOW Dirty filter
Dirty Skimmer and Pump strainer
Suction air leak
Closed valve or blocked line
4. MOTOR RUNS Low or incorrect voltage
HOT
Installed in direct sunlight
Poor ventilation
5. NOISY PUMP Bad bearing
OPERATION
Air leak in suction
Suction blockage
Foreign matter in impeller
Cavitations
6. MOTOR Motor not connected properly
OVERLOAD CUTS
Low incoming voltage
OUT
Overload due to binding in pump or
wrong size impeller
7. WATER LEAK Damged or failed mechanical seal
BETWEEN MOTOR
AND PUMP BODY
WARNING
!
If the Waterco Limited pump is within the stated warranty period and you experience faults,
always contact your supplier or the nearest Waterco Limited branch for advice. Failure to do
this may void the warranty. Refer to warranty documentation supplied with the pump.
All electrical work is to be carried out by a qualified electrician. Under no circumstances
should you attempt repairs on the electrical components of Waterco Limited pumps unless
you are qualified to do so.
Waterco Commercial Pump
ACTION
Make sure water level is correct through suction points.
Ensure baskets and strainers are free of debris. Tighten
all fittings/unions on the suction side of the pump,
remove and replace mechanical seal.
Make sure hair and lint pot is full.
Open all valve in system, clean skimmer and pump
basket, check pump impeller for blockage.
Check that all electrical switches are on. Ensure the
circuit breakers are properly set. Check if timer is set
properly. Check motor wiring at terminals.
With power switched off turn pump shaff (should spin
freely). If not, contact electrician or nearest Waterco
Limited branch for service.
Backwash or clean cartridge.
Clean skimmer and pump strainer.
See 1.
See 1.
Supply to be corrected by electrician. Motors run hot
to touch and is normal. Thermal overload protector will
function to turn them off if there is an overload or high
temperature problem.
Shield from the weather.
Do not tightly cover or enclose motor.
Have electrician replace.
See 1.
Locate and clear blockage
Dismantle pump and remove foreign matter and debris
from around impeller.
Improve suction, reduce suction lift, reduce number
of fittings on suction side, increase pipe size, increase
dischange pressure and reduce flow by throttling
dischange valve.
Have electrician check wiring.
Have electrician check voltage, ensure pump is not
running on an extension cord. Report low supply to
authorities.
Contact Waterco Limited for servise.
Replace mechanical seal.
I pg 13