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Page 54
Problem Probable Cause Remedy
Strainer clogged
Detergent valve not open or
clogged
Strainer not submerged in
solution
Clean or replace. Rinse
after each use.
Open valve then clean.
Replace if necessary
Submerge strainer, replen-
ish chemical if needed
Detergent hose cut or kinked
Inspect hose, replace if
necessary
Inlet injection will not
siphon detergent
Adjustable knob on injector is
closed (if equipped)
Open by turning counter
clockwise
Unit not in low pressure mode
Open dual wand (if equipped)
or install soap nozzle
Detergent hose cut or kinked Inspect hose, replace as
required
Detergent strainer plugged or
not submerged
Check screen on strainer
pickup tube
Internal injector parts corroded
or stuck
Disassemble, clean or
replace
Outlet water temperature is too
high
Use with cold water only
(150
o
maximum)
Downstream injector will
not siphon detergent
Turn machine o for ten
minutes then restart. If
problem persists, take unit
to an authorized service
center for diagnosis.
Unloader failure / coil
overheating / Excessive
system pressure
Pressure relief valve
releasing water
HEATING BURNER SYSTEM: DIESEL FIRED
Problem Probable Cause Remedy
Turn switch to ON; thermo-
stat ON (if equipped)
Burner will not re
Burner switch not set to ON
Fill burner tank with #2
diesel or other approved fuel
Diesel fuel level low
Trigger on spray gun not pulled
Squeeze trigger to re burner
Clean and/or tighten fuel
lter (Check fuel pressure)
Fuel lter plugged
Spray nozzle plugged Clean spray nozzle
Reset overload, locate and
correct source of overload
Overload on burner motor
tripped
Nozzle not in wand Install nozzle in wand
See pumping system
troubleshooting
Low water pump pressure
Replace burner relayBurner relay faulty (12 volt
burner only)
Warning: High voltage
on igniter can cause
electrical shock.
Disconnect power before
servicing.
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