SECTION 9: TROUBLESHOOTING

Problem

 

Cause

 

Remedy

 

 

 

 

 

Engine fails to start.

1.

Fuel tank empty, or stale fuel.

1.

Fill tank with fresh gasoline.

 

2.

Blocked fuel line.

2.

Clean the fuel line.

 

3.

Choke not in ON position

3.

Move switch to ON position

 

4.

Faulty spark plug.

4.

Clean, adjust gap or replace.

 

5.

Safety key not in ignition switch on engine.

5.

Insert the key fully into the switch.

 

6.

Spark plug wire disconnected.

6.

Connect spark plug wire.

 

7.

Primer button not being used properly.

7.

Refer to the engine manual.

 

8.

Fuel shut-off valve closed.

8.

Open fuel shut-off valve.

Engine runs erratic.

1.

Unit running on CHOKE.

1.

Move choke lever to OFF position.

 

2.

Blocked fuel line or stale fuel.

2.

Clean fuel line and fill tank with clean, fresh

 

 

 

 

gasoline.

 

3.

Water or dirt in fuel system.

3.

Drain fuel tank and carburetor. Refill with

 

 

 

 

fresh fuel.

 

4.

Carburetor out of adjustment.

4.

Refer to the engine manual.

Loss of power.

1.

Spark plug wire loose.

1.

Connect and tighten spark plug wire.

 

2.

Gas cap vent hole plugged.

2.

Remove ice and snow from gas cap. Be

 

 

 

 

certain vent hole is clear.

 

3.

Exhaust port plugged.

3.

Refer to the engine manual.

Engine overheats.

1.

Carburetor not adjusted properly.

1.

Refer to the engine manual or have the

 

 

 

 

carburetor adjusted by an authorized

 

 

 

 

engine service dealer.

Excessive vibration.

1.

Loose parts or damaged auger.

1.

Stop engine immediately and disconnect

 

 

 

 

spark plug wire. Tighten all bolts and nuts. If

 

 

 

 

vibration continues, have unit serviced by

 

 

 

 

an authorized service dealer.

Unit fails

1.

Traction control cable in need of adjustment.

1.

Adjust traction control cable. Refer to pages

to propel itself.

 

 

 

6 and 12.

 

2.

Drive belt loose or damaged.

2.

Replace drive belt. Refer to page 14.

Unit fails

1.

Discharge chute clogged.

1.

Stop engine immediately and disconnect

to discharge snow.

 

 

 

spark plug wire. Clean discharge chute and

 

 

 

 

inside of auger housing.

 

2.

Foreign object lodged in auger.

2.

Stop engine immediately and disconnect

 

 

 

 

spark plug wire. Remove object from auger.

 

3.

Auger control cable in need of adjustment.

3.

Refer to page 6 for adjustment instructions.

 

4.

Auger belt loose or damaged.

4.

Refer to page 14.

 

5.

Shear bolt(s) sheared.

5.

Replace shear bolt(s)

Electric chute fails to

1.

Loose electrical connections.

1.

Make sure all connections are tight and fully

turn.

 

 

 

installed.

 

2.

Blown Fuse.

2.

Replace with #5A fuse. The fuse is under

 

 

 

 

handle panel near switch connector.

Electric chute turns in

1.

The switch connector is installed backwards.

1.

Unplug the switch connector under the

opposite direction of

 

 

 

handle panel. Turn connector 180° and

the switch.

 

 

 

reconnect.

Heated grips are not

1.

Loose electrical connections.

1.

Under the handle panel, check connections

creating heat.

 

 

 

from the handles to the wiring harness.

 

2.

Blown fuse.

2.

Replace with #5A fuse. The fuse is under

 

 

 

 

handle panel near switch connector.

 

3.

Faulty grip. If one heated grip fails, both grips

3.

Have the grips checked at an authorized

 

 

will not function.

 

service dealer.

17

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Yard-Man 31AH553G401 manual Troubleshooting, Problem Cause Remedy

31AH553G401 specifications

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