Product Manual

CHAPTER 3: PROBLEM SOLVING The Scooter
™
4. PUMP SYSTEM
PROBLEM
POSSIBLE CAUSE
HOW TO REPAIR
Pump motor does not
go on.
1. Faulty motor.
2. Pressure switch defective.
3. Pump switch defective
4. Loose wire connection.
5. Pump pressure switch
defective.
6. Defective motor or rectifier.
7. Male & female connector
not connected.
1. Replace.
2. Release pressure.
3. Replace.
4. Tighten connections.
5. Replace.
6. Replace.
7. Push male connector all the
way into female connector.
Loss of pump
pressure with wand
valve open, spray
from wand below
normal.
1. Pump suction hose sucking
air.
2. Solution filter screen is
plugged.
3. Pump check valve worn or
dirty
4. Bad pump.
5. Malfunction in the wand
valve.
6. Hose quick connect bad or
clogged with lint.
7. Syphon Hose kinked or
collapsed
1. Replace hose or keep
solution control handle
depressed until air is
completely out of line.
2. Remove & clean
3. Clean debris from pump.
If worn replace.
4. Repair or replace.
5. Repair or replace.
6. Replace or cleaning on front
of machine & all hoses.
7. Replace Hose.
Uneven or weak
spray from tip.
1. Clogged or dirty spray tip.
2. Accumulated dirt in Solution
line.
3. Dirty filter screen
1. Clean tip, hoses & control
valve.
2. Clean
3. Clean, located behind tip
Pump fails to turn off
when the wand valve
is closed.
1. Defective pressure switch.
2. Defective internal part of
pump.
1. Replace
2. Locate defective part or
replace.
Pump motor runs
intermittently.
1. Damaged carbon brushes.
2. Brushes worn out
3. Thermal overload.
4. Pressure switch needs
adjustment.
1. Replace.
2. Replace.
3. Replace.
4. Adjust hex screw on front
of pump left or right until
pressure builds up.
(turn slightly)
No more than one turn
either way.
6