Troubleshooting – Ryobi RY80940 User Manual
Page 21

17 — 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)
Ignition lead wire shorted, broken, or
disconnected from spark plug
Ignition inoperative
Replace spark plug
Replace lead wire or attach to spark plug
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
Air in line causing idle down feature to
perform incorrectly.
Clean or replace air filter
With engine off, squeeze trigger until water
comes out to remove air from line.
Detergent fails to mix with spray
Spray selector on the 5-in-1 Change
Over Nozzle is set to either the 40º, 25º,
or 0º setting
Rotate the spray selector on the 5-in-1
Change Over Nozzle to either the short
range detergent [ ] or long range detergent
[ ] setting.
Detergent tank is empty
Add detergent to detergent tank
Pump doesn’t produce pressure
Spray selector on the 5-in-1 Change
Over Nozzle is set to either the short
range detergent [ ] or long range
detergent [ ] setting.
Rotate the spray selector on the 5-in-1
Change Over Nozzle to either the 40º, 25º,
or 0º setting
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
Air in line
Squeeze trigger on trigger handle to remove
air from line
Hose is leaking
Replace hose
Kink in hose
Eliminate kinks in hose
Choke in START position
Move choke to RUN position
Pump is faulty
Contact authorized service center
Machine doesn’t reach high
pressure
Diameter of garden hose is too small
Water supply is restricted
Not enough inlet water
Spray selector on the 5-in-1 Change
Over Nozzle is set to either the short
range detergent [ ] or long range
detergent [ ] setting.
Replace with 3/4 in. garden hose
Check garden hose for kinks, leaks, and
blockages
Open water source full force
Rotate the spray selector on the 5-in-1
Change Over Nozzle to either the 40º, 25º,
or 0º setting