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TROUBLESHOOTING
Problem Cause Correction
Pump has following
problems. No pressure, low pressure
1.Nozzle tip not attached. 1. Attached required nozzle tip
2. Water inlet is blocked. 2. Clear inlet.
3. Inadequate water supply.
4. Inlet hose is kinked or leaking. 4. Straighten inlet hose, patch leak.
5. Clogged inlet hose strainer 5. Check and clean inlet hose strainer.
6. Water supply is over 100°F. 6. Provide cooler water supply.
7. High pressure hose is blocked or
leaks.
7. Clear blocks in outlet hose.
8. The loaded RPM is not set to HIGH
8. Set RPM (Throttle lever) to HIGH
position.
9. Nozzle is obstructed. 9. Clean nozzle.
10. Damaged pump. 10. Contact Yardforce service facility.
No intake of detergent.
1. Detergent siphoning tube is not
connected.
1. Connect detergent siphon tube
Properly.
siphoning tube.
3. See "Check In-Line Filter" on page 10.
4. Wrong nozzle.
4. Use black nozzle when applying
detergent. Refer to the instruction
manual.
5. Damaged detergent siphoning tube.
5. Replace detergent siphoning
tube.
Engine sounds abnormal or
overloaded
1. Pressure is too high 1. Contact Yardforce service facility.
Engine doesn't start
Remote controller does not work
1. The engine power switch is OFF(O)
position.
1. Ensure the switch is in ON (I) position
2. No fuel. 2. Fill the fuel tank with regular gasoline.
3. Dirty air cleaner. 3. Clean or replace air cleaner.
4. Stale gasoline.
5. Spark plug wire not connected to
spark plug.
5. Connect wire to spark plug.
6. Bad spark plug. 6. Replace spark plug.
7. Low oil level. 7. Fill crankcase to proper level.
8. Clogged carburetor. 8. Clean the carburetor.
9. Excess water pressure in pump or
hose.
9. Release water pressure by
squeezing trigger on gun.
10
1. Controller was not matched to engine
successfully
1. Re-match the device and then try again
2. Charging the battery
3. Replace a new controller Battery
2. Battery low
3. controller Battery low
. Engine has lost compression. 10. Contact Yardforce service facility.
Engine stops down during operation. Out of gasoline. Fill fuel tank.
Engine lacks power.
Starter rope doesn't recoil Recoil mechanism is broken. Contact Yardforce service facility.
22


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