Blue Angel Pumps 63042-BLA1 - Manual (Page 5)

5
Operating Instructions 2 HP Grinder Pumps
Troubleshooting
symptom Possible cause(s) corrective Action
Motor Not Running 1. Motor Protector Tripped 1. Allow motor to cool. Make sure pump is completely submerged.
Clear debris from volute and impeller.
2. Open circuit breaker or blown fuse 2. Reset breaker. If circuit opens repeatedly, don’t reset it. Call a
licensed electrician.
3. Impeller clogged 3. Check amp draw. If it is more than twice the nameplate amps, the
impeller is locked. Bearings and shaft may be damaged. Disconnect
Power, clear debris from volute, impeller and cutter as needed.
4. Cutter clogged 4. Disconnect Power, pull pump and inspect cutter and cutter ring.
Replace if worn.
5. Power cable damaged 5. Resistance between power cable and ground should be infinity. If
any reading is less than infinity, call a licensed electrician.
6. Bad control panel 6. Inspect control panel wiring. Call a licensed electrician.
7. Defective liquid level switch 7. With switch disconnected from power, check continuity through
switch while activating liquid level switch. Replace switch if
necessary.
8. Not enough liquid in wet well to
activate controls
8. Allow the liquid to rise several inches above the switch-on level.
9. Liquid level cords tangled 9. Untangle cords for free operation.
10. Automatic controls defective 10. Try running pump in manual mode. If it runs, the automatic
control is at fault.
Pump runs continuously 1. Liquid level control cords tangled 1. Untangle cords for free operation.
2. Pump is air-locked 2. Stop pump for about one minute and then restart. Repeat
stopping and starting until the airlock clears. If the airlock
continues, Disconnect Power, pull the pump and drill a 1/8” hole
in the discharge pipe between the pump discharge and the check
valve.
3. Incoming flow exceeds the pump’s
capacity
3. A larger pump or additional pumps may be required.
4. Clogged line 4. Discharge line could be clogged. Unclog line.
Pump delivers low volume
of liquid 1. Check valve plugged, stuck shut or
installed backwards
1. Make sure check valve is installed correctly and functioning
correctly.
2. Systems head is too high 2. Consult dealer.
3. Pump suction plugged 3. Disconnect power, pull pump, inspect and clear as needed.
4. Wrong voltage or not wired correctly 4. Check pump’s rotation, check nameplate voltage against supply
voltage, consult licensed electrician.
5. Pump air-locked 5. Stop pump for about one minute and then restart. Repeat
stopping and starting until the airlock clears. If the airlock
continues, Disconnect Power, pull the pump and drill a 1/8” hole
in the discharge pipe between the pump discharge and the check
valve.
6. Worn or damaged impeller 6. Disconnect Power, pull pump and inspect impeller. Replace if
necessary.
7. Liquid level controls incorrectly
installed or defective
7. Reposition or replace as necessary.
Pump cycles frequently 1. No discharge check valve installed 1. Install discharge check valve.
2. Discharge check valve stuck open 2. Repair or replace check valve as necessary.
3. Sewage basin too small 3. Consult dealer.
4. Liquid level controls incorrectly
installed or defective
4. Reposition or replace as necessary.
5. Pump too small for inlet flow 5. Consult dealer about larger pump or second pump.
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