21
USA and Canada 800.683.2378, International 904.641.1666
Stennicator
TROUBLESHOOTING – PUMP HEAD
PROBLEM
POSSIBLE CAUSE
SOLUTION
Components are cracking
Chemical attack
Check chemical compatibility
Visible fluid in pump head
Pump tube rupture/leak
Replace pump tube according to instructions
No pump output;
Depleted solution tank
Replenish solution
pump head rotates
Pump suction line weight is above solution
Maintain suction line 2-3" off bottom of tank
Suction line leak
Inspect or replace suction line
Ferrules installed incorrectly or damaged
Replace ferrules
Injection point is clogged
Inspect and clean injection point
Clogged suction/discharge tubing
Clean and/or replace as necessary
Life of pump tube is exhausted
Replace pump tube according to instructions
Suction tubing is flush with the nose
Pull suction tubing approximately 1" from
of the weighted strainer
bottom of strainer; cut bottom of suction
tubing at an angle
Pump cover not secured properly
Ensure that pump cover is properly latched
Low pump output;
Pump tube is worn
Replace pump tube according to instructions
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
Confirm system pressure does not exceed
80 psi (5.5 bar) max.
Pump cover not secured properly
Ensure that pump cover is properly latched
Potentiometer set incorrectly
Adjust potentiometer
No pump output;
Roller assembly is stripped
Replace roller assembly
pump head doesn’t rotate
Faulty board
Replace drive assembly
Drive assembly problem
Refer to Troubleshooting – Drive Assembly
Potentiometer set incorrectly
Adjust potentiometer
Pump output is high
Roller assembly is broken
Replace roller assembly
Potentiometer set incorrectly
Adjust potentiometer
