Page 14 — English
TROUBLESHOOTING
PROBLEM
CAUSE
SOLUTION
Engine fails to start
No fuel in tank
Fill tank
Spark plug shorted or fouled
Replace spark plug
Spark plug is broken (cracked porcelain or
electrodes broken)
Replace spark plug
Ignition lead wire shorted, broken, or
disconnected from spark plug
Replace lead wire or attach to spark plug
Ignition inoperative
Contact authorized service center
Engine hard to start
Water in gasoline
Drain entire system and refill with fresh fuel
Weak spark at spark plug
Contact authorized service center
Engine lacks power
Dirty air filter
Clean or replace air filter
Detergent fails to mix with spray
Detergent injection hose is not properly
submerged
Insert injection hose into detergent container
or detergent bottle
High pressure nozzle attached
Use low pressure nozzle (black) to apply
detergent
Pump doesn’t produce pressure
Low pressure nozzle installed
Replace with high pressure nozzle
Inadequate water supply
Provide adequate water flow
Trigger handle or spray wand leaks
Check connections and / or replace trigger
handle or spray wand
Nozzle is clogged
Clean nozzle
Pump is faulty
Contact authorized service center
Air in line
Squeeze trigger on trigger handle to remove
air from line
Machine doesn’t reach high pressure Diameter of garden hose is too small
Replace with 3/4 in. garden hose
Water supply is restricted
Check garden hose for kinks, leaks, and
blockages
Not enough inlet water
Open water source full force
Wrong nozzle is attached
Attach the high pressure nozzle
Summary of Contents for UT80993 SERIES
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