Husqvarna Comprehensive Troubleshooting for Your Lawn Mower

Page 28

TROUBLESHOOTING CHART:

See appropriate section in manual unless directed to a service center

PROBLEM

CAUSE

CORRECTION

Will not start

1.

Out of fuel.

1.

Fill fuel tank.

 

2.

Engine not “CHOKED”

2.

See “TO START ENGINE” in

 

 

properly.

 

Operation section.

 

3.

Engine flooded.

3.

Wait several minutes before

 

 

 

 

attempting to start.

 

4.

Bad spark plug.

4.

Replace spark plug.

 

5.

Weak or dead battery.

5.

Recharge or replace battery.

 

6.

Dirty air filter.

6.

Clean/replace air filter.

 

7.

Dirty fuel filter.

7.

Replace fuel filter.

 

8.

Water in fuel.

8.

Empty fuel tank and carbure-

 

 

 

 

tor, refill tank with fresh gas-

 

 

 

 

oline and replace fuel filter.

 

9.

Loose or damaged wiring.

9.

Check all wiring.

 

10. Carburetor out of adjustment.

10. See “To Adjust Carburetor”

 

 

 

 

in Service and Adjustments

 

 

 

 

section.

 

11. Engine valves out of

11. Contact a qualified service

 

 

adjustment.

center.

 

 

 

 

 

Hard to start

1.

Dirty air filter.

1.

Clean/replace air filter.

 

2.

Bad spark plug.

2.

Replace spark plug.

 

3.

Weak or dead battery.

3.

Recharge or replace battery.

 

4.

Dirty fuel filter.

4.

Replace fuel filter.

 

5.

Stale or dirty fuel.

5.

Empty fuel tank and refill tank

 

 

 

 

with fresh, clean gasoline.

 

6.

Loose or damaged wiring.

6.

Check all wiring.

 

7.

Carburetor out of adjustment.

7.

See “To Adjust Carburetor” in

 

 

 

 

Service and Adjustments

 

 

 

 

section.

 

8.

Engine valves out of

8.

Contact a qualified service

 

 

adjustment.

 

center.

 

 

 

 

 

Engine will not

1.

Brake pedal not depressed.

1.

Depress brake pedal.

turn over

2.

Attachment clutch is engaged.

2.

Disengage attachment clutch.

 

3.

Weak or dead battery.

3.

Recharge or replace battery.

 

4.

Blown fuse.

4.

Replace fuse.

 

5.

Corroded battery terminals.

5.

Clean battery terminals.

 

6.

Loose or damaged wiring.

6.

Check all wiring.

 

7.

Faulty ignition switch.

7.

Check/replace ignition switch.

 

8.

Faulty solenoid or starter.

8.

Check/replace solenoid or

 

 

 

 

starter.

 

9.

Faulty operator presence

9.

Contact a qualified service

 

 

switch(es).

 

center.

 

 

 

 

 

Engine clicks but

1.

Weak or dead battery.

1.

Recharge or replace battery.

will not start

2.

Corroded battery terminals.

2.

Clean battery terminals.

 

3.

Loose or damaged wiring.

3.

Check all wiring.

 

4.

Faulty solenoid or starter.

4.

Check/replace solenoid or

 

 

 

 

starter.

 

 

 

 

 

Loss of power

1.

Cutting too much grass/too

1.

Raise cutting height/reduce

 

 

fast.

 

speed.

 

2.

Throttle in “CHOKE” position.

2.

Adjust throttle control.

 

3.

Build-up of grass, leaves and

3.

Clean underside of mower

 

 

trash under mower.

 

housing.

 

4.

Dirty air filter.

4.

Clean/replace air filter.

 

5.

Low oil level/dirty oil.

5.

Check oil level/change oil.

 

 

 

 

 

28

Image 28
Contents LOYTH20F42T Safety Rules General OperationService II. Slope OperationIII. Children IV. TowingGeneral Service Table of Contents Unassembled Parts ASSEMBLY/PRE-OPERATIONTo Remove Tractor from Carton Checklist Check Tire PressureCheck Deck Levelness Check for Proper Position of ALL BeltsOperation Attachment Clutch Switch Service Reminder / Hour MeterKnow Your Tractor THROTTLE/CHOKE ControlHOW to USE Your Tractor To SET Parking BrakeStopping To USE Throttle Control DTo Move Forward Backward System CharacteristicsTo USE Cruise Control Using the Reverse Operation System To Operate MowerReverse Operation System ROS To Operate on HillsService REMINDER/HOUR Meter Before Starting the EngineTowing Carts and Other ATTACH- Ments Check Engine OIL LevelTo Start Engine Purge TransmissionMowing Tips Maintenance Lubrication ChartTractor Transaxle Pump Fluid EngineTransaxle Cooling BeltsCleaning To Install Mower Service and AdjustmentsTractor To Remove Mower Page Precision SIDE-TO-SIDE Adjustment Visual SIDE-TO-SIDE AdjustmentTo Level Mower To Replace Mower Drive Belt To Adjust Attachment ClutchTo Replace Motion Drive Belt To Check Brake Belt InstallationTo Remove Wheel for Repairs Replacing Battery To Start Engine with a Weak BAT- TeryTo Replace Headlight Bulb Interlocks and RelaysTo Adjust Carburetor To Adjust Throttle Control CableTo Remove Hood and Grill AS- Sembly Storage BatteryOther Troubleshooting Chart Problem Cause CorrectionExcessive Mower blades will Warranty Limited WarrantySuggested Guide for Sighting Slopes for Safe Operation