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TROUBLESHOOTING GUIDE
Read and understand safety and operating in-
structions in this manual before doing any work
on pump!
Only qualified personnel should electrically test
pump motor!
FAILURE TO PUMP, REDUCED CAPACITY OR DIS-
CHARGE PRESSURE
A. SUCTION LEAKS/LOST PRIME:
1. Pump must be primed; make sure that pump volute
and trap are full of water. See priming instructions,
Page 8.
2. Make sure there are no leaks in suction piping.
3. Make sure suction pipe inlet to pump is well below
the water level to prevent pump from sucking air.
4. If suction trap gasket is defective, replace it.
5. Suction lift of 3 to 4 feet (.9-1.2M) will reduce per-
formance. Suction lift of more than 4 feet (1.2M)
will prevent pumping and cause pump to lose
prime. In either case, move pump closer (vertically)
to water source. Make sure suction pipe is large
enough.
B. CLOGGED PIPE/TRAP/IMPELLER,
WORN IMPELLER:
1. Make sure suction trap is not clogged; if it is, clean
trap and strainer.
2. Make sure impeller is not clogged (follow instruc-
tions under "Removing Old Seal," Page 9; check im-
peller for clogging; follow instructions under "Pump
Reassembly/Installing New Seal," Page 9 for re-
assembly).
3. Impeller and diffuser may be worn. If so, order re-
placement parts from Repair Parts List, Page 12.
C. INADEQUATE CIRCULATION OR JET ACTION
1. Check for blocked fittings. Blocked fittings will
cause poor flow and poor jet action.
2. Check trap basket; if plugged, turn pump off and
clean basket. Check and clean skimmer basket.
3. Check that gate valves are fully open.
4. Suction/discharge piping is too small.
5. Check and clean pool filter.
6. Consult dealer/installer or service representative.
D. CIRCUIT BREAKER IN HOME PANEL
TRIPS REPEATEDLY
1. Breaker must be of adequate capacity.
2. For GFCI breaker; test according to GFCI manufac-
turer's instructions.
3. Be sure no other lights and appliances are on cir-
cuit.
4. Consult dealer/installer or service representative.
E. MECHANICAL TROUBLES AND NOISE
1. If pump suction and discharge are not adequately
supported, pump assembly will be strained. See
"Installation," Pages 5 and 6.
2. Do not mount pump on a wooden platform!
Securely mount on a concrete platform for quietest
performance.
3. Air leak in suction line (bubbles in water returning
to pool). Repair leak. Tighten trap lid.
4. Foreign matter (gravel, metal, etc.) in pump im-
peller. Disassemble pump, clean impeller, follow
pump service instructions on page 9 for reassembly.
5. Cavitation.
Improve suction conditions.
Increase pipe size.
Decrease number of fittings.
Increase discharge pressure.
Reduce flow by throttling discharge gate valve.
F. ELECTRICAL:
1. Pump may be running too slowly; check voltage at
motor terminals and at meter while pump is run-
ning. If low, see wiring instructions or consult power
company. Check for loose connections.
2. Pump may be too hot.
A Check line voltage; if less than 90% or more
than 110% of rated voltage consult a licensed
electrician.
B. Increase ventilation.
C. Reduce ambient temperature.
D. Tighten any loose connections.
3. Motor internal thermal overload protector is open.
Motor runs too hot. Turn power to motor off. Check
for proper voltage. Check for proper impeller or im-
peller rubbing on inside of pump body.
4. Consult dealer/installer or service representative.
11
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