21
NO PUMP OUTPUT
NO PUMP OUTPUT
Possible Cause
Correction
1. Check pump chamber.
Pump not primed.
Prime pump.
2. Check suction hose.
Hose collapsed, cut or
punctured.
Replace suction hose.
Strainer not completely
underwater.
Sink the strainer and the
end of a suction hose
completely underwater.
Air leak at connector.
Replace sealing washer if
missing or damaged.
Tighten hose connector
and clamp.
Strainer clogged.
Clean debris from
strainer.
3. Measure suction and
discharge
head.
Excessive head.
Relocate pump and / or
hoses to reduce head.
Check engine.
Engine lacks power.
See page 21.
LOW PUMP OUTPUT
LOW PUMP OUTPUT
Possible Cause
Correction
1. Check suction hose.
Hose collapsed,
damaged, too long, or
diameter too small.
Replace suction hose.
Air leak at connector.
Replace sealing washer if
missing or damaged.
Tighten hose connector
and clamp.
Strainer clogged.
Clean debris from
strainer.
2. Check discharge hose.
Hose damaged, too long,
or diameter too small
Replace discharge hose.
3. Measure suction and
discharge head.
Marginal head.
Relocate pump and / or
hoses to reduce head.
4. Check engine.
Engine lacks power.
See page 21.
