Troubleshooting
Rev C46530-20081202
21
Troubleshooting
Problem
Cause
Solution
Semi-trash pump will not start
No fuel
Add fuel
Faulty spark plug
Replace spark plug
Semi-trash pump will not start;
Semi-trash pump starts but runs
roughly
Low oil level
Fill crankcase to the proper level
Place semi-trash pump on a flat, level
surface
Choke in the wrong position.
Adjust choke.
Spark plug wire loose
Attach wire to spark plug
Semi-trash pump shuts down during
operation
Out of fuel
Fill fuel tank
Low oil level
Fill crankcase to the proper level.
Place semi-trash pump on a flat, level
surface
Semi-trash pump overheating or
performing poorly
Strainer or hose clogged
Remove debris from strainer or hose
Pump not primed
Re-prime pump
Suction hose out of water
Place suction hose under the surface
of the water
Head limit exceeded
Relocate pump so suction head is less
than discharge head (maximum 98
feet)
Air leak
Tighten connectors and clamps or
replace seal packing