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Kärcher TRS-SSG • Operators • 9.801-330.0-K
PRESSURE WASHER Troubleshooting Guide
26
PRESSURE WASHER TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
LOW
WATER
TEMPERATURE
Improper fuel or water in fuel Replace with clean and proper fuel.
Low fuel pressure Increase fuel pressure.
Weak fuel pump Check fuel pump pressure.
Replace pump if needed.
Fuel fi lter partially clogged Replace as needed.
Soot build-up on coils not allowing
heat transfer
Clean coils.
Improper burner nozzle See specifi cations. (Page 31)
WATER
TEMPERATURE
TOO HOT
Incoming water to
machine warm or hot
Lower incoming water temperature.
Fuel pump pressure too high See specifi cations for proper fuel pressure.
Fuel pump defective Replace fuel pump.
Detergent line sucking air Tighten all clamps. Check detergent lines for
holes.
Defective temperature switch Replace.
Incorrect fuel nozzle size See specifi cations for
proper fuel nozzle. (Page 31)
Insuffi cient water supplied Check water G.P.M. to machine.
Restricted water fl ow Check nozzle for obstruction, proper size.
PUMP
NOISY
Air in suction line Check water supply and connections on suc-
tion line.
Broken or weak inlet or discharge
valve springs
Check and replace if necessary.
Excessive matter in valves Check and clean if necessary.
Worn bearings Check and replace if necessary.
PRESENCE
OF WATER
IN OIL
Oil seal worn Check and replace if necessary.
High humidity in air Check and change oil twice as often.
WATER
DRIPPING
FROM
UNDER PUMP
Piston packing worn Check and replace if necessary.
O-Ring plunger retainer worn Check and replace if necessary.
Cracked piston Check and replace if necessary.
Pump protector Lower water supply pressure. Do not run
with spray gun closed longer than 2 minutes
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