EN - 21
TROUBLESHOOTING
Problem
Probable Cause
Correction
Engine will not
start.
Engine switch is in off position.
Push switch to on position. See
Engine key is not in unit.
Insert key. See
Choke is off.
Turn choke control knob to on position.
See
Fuel valve is closed.
Open valve. See
Fuel tank is empty.
Fill tank with fuel. See
Engine is not primed.
If engine is cold, press primer bulb two
times and start engine. Do not prime a
warm engine. See
Ignition switch starter circuit is
not functioning. (
Electric start
models only
.)
See your dealer for repair.
Build up of dirt and residue
around governor / carburetor.
Clean area around governor / carburetor.
See the service guide for your unit.
Spark plug wire is disconnected. Connect spark plug. Refer to engine
manual.
Spark plug is faulty.
Replace spark plug. Refer to engine
manual.
Engine is flooded.
Turn choke control knob to off position
and start engine. See
Engine is faulty.
See your Ariens dealer or authorized
engine manufacturer’s service center.
Engine starts
hard or runs
poorly.
Fuel mixture is too rich.
Turn choke control knob to off position.
See
Spark plug is faulty, fouled or
incorrectly gapped.
Clean and correctly set spark plug gap
(refer to engine manual) or see your
Ariens dealer.
Fuel cap vent is blocked.
Install new fuel cap.
Engine stops.
Fuel tank is empty.
Fill tank with fuel. See
Fuel valve is closed.
Open valve. See
Obstruction in auger or impeller.
Stop engine, remove key and wait for all
moving parts to stop. Check for and
remove obstruction before restarting.
Contaminated fuel supply.
Replace with clean fuel.
Spark plug is faulty.
Replace or clean spark plug. Refer to
engine manual.
Fuel cap vent is blocked.
Install new fuel cap.
Unit runs
briefly then
stops.
A build up of fumes in the fuel
tank is creating too much
pressure in the fuel tank.
Slowly loosen the fuel tank cap.
Unit does not
drive forward or
in reverse.
Friction disc is worn.
Replace friction disc. Refer to the service
guide for your unit.
Traction drive cable is not
adjusted correctly.
Remove slack from cable. See
Speed selector is not adjusted
correctly.
Adjust speed selector. See