Troubleshooting - Flotec AT250701 Manual Del Usuario

Troubleshooting

Hazardous voltage. Can shock, burn or
cause death. Disconnect power before working on pump
or motor.
Read and understand safety and operating instruc-
tions in this manual before doing any work on
pump!
Only qualified personnel should electrically test
pump motor!
FAILURE TO PUMP; REDUCED CAPACITY OR
DISCHARGE PRESSURE
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 is well below the water
level to prevent pump from sucking air.
4. If suction trap gasket is defective, replace it.
5. Make sure pump is not trying to lift water more than
10' (3m).
6. Make sure suction pipe is at least 1-1/2" (38mm) in
diameter.
Clogged pipe/trap/impeller, worn impeller:
7. Make sure suction trap is not clogged; if it is, clean
trap and strainer.
8. Make sure impeller is not clogged (follow steps 1
through 7 under "Removing Old Seal", Page 9; check
impeller for clogging; follow steps 7 through 11 under
"Installing New Seal", Page 10, for reassembly).
9. Impeller and diffuser may be worn. If so, order
replacement parts from Repair Parts List, Page 12.
For parts or assistance, call Flotec Customer Service at
Electrical:
10. Pump may be running too slowly; check voltage at
motor terminals and at meter while pump is running.
If low, see wiring instructions or consult power com-
pany. Check for loose connections.
11. 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.
MECHANICAL TROUBLES AND NOISE
1. If suction and discharge piping are not adequately
supported, pump assembly will be strained. See
"Installation", Page 4.
2. Do not mount pump on a wooden platform! Securely
mount on concrete platform for quietest performance.
1-800-365-6832
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