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20
TROUBLESHOOTING – PUMP HEAD
PROBLEM
POSSIBLE CAUSE
SOLUTION
Components cracking
Chemical attack
Check chemical compatibility
Pump head leaking
Pump tube rupture
Replace pump tube, ferrules; center tube
No pump output,
Depleted solution tank
Replenish solution
pump head rotates
Pump suction line weight is
Maintain suction line 2-3" above
above solution
bottom of tank
Leak in the suction line
Inspect or replace suction line
Ferrules installed incorrectly,
Replace ferrules
missing or damaged
Injection point is clogged
Inspect and clean injection point
Clogged suction and/or discharge Clean and/or replace as needed
line and/or injection check valve
Life of pump tube exhausted
Replace pump tube, ferrules; center tube
Suction line is flush with
Pull suction line approximately 1" from
the nose of the weighted strainer
bottom of strainer, cut bottom of suction
line at an angle
Low pump output,
Life of pump tube exhausted
Replace pump tube, ferrules; center tube
pump head rotates
Rollers worn or broken
Replace roller assembly
Injection point is restricted
Inspect and clean injection point
Incorrect tube size
Replace tube with correct size
High system back pressure
Verify system pressure against tube psi,
replace tube if needed
No pump output,
Stripped roller assembly
Replace roller assembly
pump head doesn’t rotate
Motor problem
Refer to motor section
Pump output high
Incorrect tube size or setting
Replace tube with correct size or
adjust settings
Roller assembly broken
Replace roller assembly
