General Fault Finding - Prochem Steempro SX2000 POWERFLO Safety, Operation & Maintenance Instructions

GENERAL FAULT FINDING GUIDE
CAUTION - Repairs should only be carried out by a QUALIFIED AND FULLY TRAINED PERSON !
NO POWER
With both vacuum and pump switches in the 'on' position, the vacuum and pump will not run.
PROBABLE CAUSES
Defective power cord
Blown plug fuse
House or building circuit breaker tripped
NO VACUUM
With the vacuum switch in the 'on' position, the vacuum will not run.
PROBABLE CAUSES
Vacuum switch defective
Vacuum motor defective
Loose wire connections
LOSS OF VACUUM
While the unit is running, there is a loss of suction at the cleaning tool.
PROBABLE CAUSES
Hole in vacuum hose
Disconnected or damaged internal hose
Waste tank lid seal defective
Vacuum hose obstructed
Vacuum filter clogged
Drain valve open (if fitted)
Vacuum motor defective
NO PUMP PRESSURE
With the pump switch in the 'on' position, the pump will not run.
PROBABLE CAUSES
Defective pump switch
Defective internal by-pass or check valve
Defective pump motor or worn brushes
Seized motor shaft or cam bearing
Loose wire connections
Defective pump pressure switch (100psi model)
Defective rectifier
LOW PUMP PRESSURE
With the pump motor running the spray from the cleaning wand is below normal.
PROBABLE CAUSES
Solution tank filter clogged
Suction leak at pump inlet
Pressure leak at pump outlet
Quick connect defective
Spray tip worn, clogged or incorrectly positioned
Spray tip non-drip valve seized
Diaphragm split (leak from pump head)
Broken by-pass springs
Worn by-pass poppets
Check valve assembly defective or clogged
Worn cam drive bearing (excessive noise)
Low motor speed due to partially seized bearings
Clogged spray-tip filters
Pressure regulator incorrectly set or lost prime
Steempro Manual.doc 1/8/09
CORRECTIVE ACTION
Replace power cord
Replace fuse
Re-set breaker switch
CORRECTIVE ACTION
Replace switch
Replace
Check and correct wiring
CORRECTIVE ACTION
Repair or replace hose
Repair replace or reconnect hose
Replace lid seal
Locate and clear obstruction
Remove, clean and replace
Close drain valve
Replace vacuum motor
CORRECTIVE ACTION
Replace switch
Inspect and replace
Replace pump, brushes or brush endbell
Replace or lubricate bearing
Check and correct wiring
Replace pump pressure switch
Replace rectifier
CORRECTIVE ACTION
Clean as necessary
Locate leak and repair
Locate leak and repair
Replace quick connect
Replace, clean or re-position
Dismantle and lubricate
Replace diaphragm
Replace springs
Replace poppets
Clean or replace check valve assembly
Replace drive bearing
Lubricate or replace bearings
Clean or replace spray tip filters
Re-set pressure regulator or re-prime
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