Section 7 Troubleshooting; Troubleshooting Guide - Generac CW15 El Manual Del Propietario

Troubleshooting
Section 7
7.1 — T
ROUBLESHOOTING
PROBLEM
Pump will not pump.
Pump will not prime.
Priming takes a long time.
Pump does not perform as
well as it should.
Pump loses prime.
Pump will not start.
Pump starts, but runs roughly.
Pump shuts down during
operation.
1. Excessive suction lift must take into consideration:
A. Size and length of pipe
B. Pipe fitting
C. Elevation above sea level
Including all of the above, we recommend that the total suction head not
exceed 26 ft.
2. An excessively worn impeller is mainly caused from cavitation,
which is caused by a number of situations, such as:
A. Restricted suction
B. Excessive suction lift
Water Pump
G
UIDE
CAUSE
1. Air leak in suction hose.
2. The suction and/or discharge line(s) may be
blocked.
3. The end of the suction line is not submerged.
4. Total head is too high for this pump to work
against
1. Excessive suction lift (*1).
1. Suction line is quite long.
2. Air pockets or leaks in the suction line.
1. Flow is restricted due to debris build-up.
2. Insufficient submergence of the end of suction
hose.
3. Excessively worn impeller (*2).
4. Seal is damaged (*3). Liquid will be leaking
through the middle of the adapter.
5. Air pockets or leaks in the suction hose.
6. Clogged impeller.
7. Engine throttle is in SLOW position.
1. Water level drops below the end of the suction
line.
1. No fuel.
2. Faulty spark plug.
3. Fuel valve lever is in the OFF position.
4. Ignition switch is in the OFF position.
5. Choke is in the wrong position.
1. Choke is in the wrong position.
2. Spark plug wire is loose.
3. Faulty spark plug.
4. Fuel is contaminated (water, debris, etc.).
1. No fuel.
2. Low oil sensor shuts down unit.
1. Make sure suction hose is double clamped at joints,
clamps are tight, fittings have thread compound and
are tight, with no nicks or cuts in hose.
2. Check to see that the hoses and filter are in good
working order.
3. Increase its length, or move pump closer to source
of liquid.
4. Reduce total head or use a higher head pump.
1. Move the pump closer to liquid source.
1. Move pump closer to source.
2. Check the line for loose connections. Make sure
suction hose is submerged.
1. Clean the hoses, fittings and filter.
2. The end of the suction line must be submerged.
3. Replace impeller.
4. Replace the seal.
5. Check suction hose.
6. Remove casing to clean out.
7. Move throttle to FAST position.
1. Increase length of suction line or move the pump
closer to the water source.
1. Allow engine to cool for 2 minutes, then fill fuel tank.
2. Replace spark plug.
3. Turn the fuel valve lever to the ON position.
4. Turn the ignition switch to the ON position.
5. Slide choke lever to the CHOKE position.
1. Slide choke lever to the RUN position.
2. Attach wire to spark plug securely.
3. Replace spark plug.
4. Allow engine to cool for 2 minutes, then drain fuel
tank and carburetor. Fill tank with fresh fuel.
1. Allow engine to cool for 2 minutes, then fill fuel tank.
2. Make sure unit is on flat surface. Check oil level and
add more if necessary.
3. The seal may be damaged due to:
A. Normal wear
B. Overheating
C. Pumping chemicals that this seal is not designed for.
Contact an authorized service depot for further assistance.
CORRECTION
25