Chapter 10: Troubleshooting and solutions
problem
possible reason
Corrective Action
Priority
Engine cannot start
Throttle wrench is not in the
correct position
Move the throttle choke to the correct position
There is no fuel in the fuel tank
Add the same amount of gasoline according to the fuel volume provided in
the parameter table of this manual (page 11).
Air filter components are dirty
Clean air purifier components
√
Spark plug loose
Screw the spark plug to 25-30Nm
The spark plug wire is loose or
disconnected from the plug
Install spark plug wire on spark plug
√√
Spark plug gap is incorrect
Set the gap between the electrodes to 0.7 to 0.8 mm
Spark plug is defective
Install a new spark plug
Carburetor flooded with fuel
Remove the air filter element and pull the starter rope continuously until the
carburetor cleans itself and installs the air filter element.
√√√
Ignition module failure
Contact service agent repair
Switch rocker arm is not closed
Close the switch rocker arm as shown in Fig15-1, 2 on page 12.
√√√
The throttle handle is not pulled
to the starting position
Move the throttle handle to the starting position, as shown in Figure 15-1, 2
on page 12.
√√√
The engine is difficult
to start or lose power
There are impurities in the fuel
Reclean the tank and use new fuel
The fuel filter is blocked by
impurities
Clean the filter
√√
The air intake hole on the fuel
tank cap is blocked
Clean or replace the fuel tank cap
√√√
Air filter components are dirty
Clean air purifier components
√
Unstable engine speed Spark plug is defective
Install a new spark plug
Spark plug gap is incorrect
Set the gap between the electrodes to 0.7 to 0.8 mm
Insufficient fuel supply
Check for carburetor or strainer for impurities
√√
Air filter components are dirty
Clean air purifier components
√√
The engine idling is
very poor.
Air filter components are dirty
Clean air purifier components
√√
Air slots in the engine shroud are
blocked
Clear debris from the slot
The fins and air passages under
the engine blower housing are
blocked.
Remove debris from the heat sink and air passage
The engine has no
high speed.
The gap between the spark plug
electrodes is too close
Set the gap between the electrodes to 0.7 to 0.8 mm
Engine overheating
Cooling airflow is limited
Check the fan for damage or blockage by debris, clear any debris in the slots
in the air passage
√
Spark plug is incorrect
Install a new spark plug
Abnormal vibration of
the machine
Impeller bolt loose
Tighten the impeller bolts
√
Impeller is out of balance
Balance or replace the new impeller
√√√
Abnormal
noise
occurs
when
the
machine starts up
Boot disk loose
Fix the boot disk
√√
There is debris in the suction port Remove debris from the suction vent
Foreign matter is attached to the
connecting shaft below the
impeller
Clear foreign objects on the connecting shaft
The impeller is wrapped by
foreign matter
Remove foreign matter from the impeller
√√√
Impeller bolt loose
Tighten the impeller bolts
Impeller is out of balance
Balance the impeller or replace the new impeller
√√
Engine can't turn off
The flameout line has fallen off
Reinsert the flameout line
√
Flameout switch contact is
damaged
Contact service agent repair
√√√
Igniter damage
Contact service agent repair
Unable
to
absorb
garbage
The suction port is blocked by
debris
Remove debris from the suction vent
√
Collecting bag vent hole is
blocked by dust
Cleanup collection bag or open vent window zipper
√√√
Collection bag full
Clean up the garbage in the collection bag
√√
Machine walking is
difficult
Foreign substance is wound on
wheels
Clean up foreign objects on the wheels
The ground is uneven
Adjust the height to the appropriate gear
√
The lawn is very lush
Adjust the height to the appropriate gear
√√√
24
