TROUBLESHOOTING

PROBLEM

 

 

CAUSE

 

 

 

 

 

 

 

CORRECTION

 

 

 

 

 

 

 

Will

not

start

 

1.

Out of fuel.

 

 

 

1.

Fill fuel

tank.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.

Engine

not "CHOKED" properly.

2.

See "TO START ENGINE"

in Operation

section.

 

 

 

 

3.

Engine

flooded.

 

3.

Wait several minutes before attempting

to start.

 

 

 

 

4.

Bad spark

plug.

 

4.

Replace

spark

plug.

 

 

 

 

 

 

 

 

 

5.

Dirty

air filter.

 

 

5.

Clean/replace

air filter.

 

 

 

 

 

 

 

 

 

6.

Dirty

fuel

filter.

 

 

6.

Replace

fuel filter.

 

 

 

 

 

 

 

 

 

7.

Water

in fuel.

 

 

7.

Empty fuel tank and carburetor,

refill

tank with fresh

 

 

 

 

 

 

 

 

 

 

 

 

 

 

gasoline and replace fuel filter.

 

 

 

 

 

 

 

8.

Loose

or damaged

wiring.

8.

Check

all wiring.

 

 

 

 

 

 

 

 

 

9.

Carburetor

 

out of adjustment.

9.

See "To Adjust

Carburetor"

in Service

Adjustments

 

 

 

 

 

 

 

 

 

 

 

 

 

 

section.

 

 

 

 

 

 

 

 

 

 

 

 

10.

Engine valves

out of adjustment.

10.

Contact

an authorized

service

center/department.

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 gas.

 

 

 

 

6.

Loose

or damaged

wiring.

6.

Check

all wiring.

 

 

 

 

 

 

 

 

 

7.

Carburetor

 

out of adjustment.

7.

See "To Adjust

Carburetor"

in Service

Adjustments

 

 

 

 

 

 

 

 

 

 

 

 

 

 

section.

 

 

 

 

 

 

 

 

 

 

 

 

8.

Engine valves

out of adjustment.

8.

Contact

an authorized

service

center/department.

Engine

will not

 

1.

Brake pedal

not depressed.

1.

Depress

brake

pedal.

 

 

 

 

 

 

2.

Attachment

clutch

is engaged.

2.

Disengage

attachment

clutch.

 

 

 

turn

over

 

 

 

 

 

 

 

 

 

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 switch(es).

9.

Contact

an authorized

service

center/department.

Engine

clicks

but

1.

Weak

 

or dead

battery.

1.

Recharge

or replace battery.

 

 

 

2.

Corroded

 

battery terminals.

2.

Clean

battery

terminals.

 

 

 

 

will

not

start

 

 

 

 

 

 

 

3.

Loose

or damaged

wiring.

3.

Check

all wiring.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.

Faulty

solenoid

or starter.

4.

Check/replace

solenoid

or starter.

 

 

Loss of power

Excessive

vibration

1.

Cutting too much grass/too fast.

1.

Raise

cutting height/reduce

speed.

 

2.

Throttle

in "CHOKE"

position.

2.

Adjust

throttle

control.

 

 

 

 

3.

Build-up

of grass, leaves, trash under mower.

3.

Clean

underside

of mower

housing.

 

4.

Dirty air filter.

 

 

 

4.

Clean/replace

air filter.

 

 

 

 

5.

Low oil level/dirty

oil.

5.

Check

oil level/change

oil.

 

 

 

6.

Faulty spark

plug.

 

6.

Clean and regap or change spark plug.

7.

Dirty fuel

filter.

 

 

7.

Replace fuel filter.

 

 

 

 

8.

Stale

or

dirty

fuel.

 

8.

Empty fuel tank and refill tank with fresh, clean gas.

9.

Water

in fuel.

 

 

9.

Empty

fuel tank and carburetor,

refill

tank with fresh

 

 

 

 

 

 

 

 

 

gasoline and replace fuel filter.

 

 

10.

Spark

plug wire

loose.

10.

Connect and tighten spark

plug

wire.

 

11.

Dirty engine

 

air screen/fins.

11.

Clean

engine air

screen/fins.

 

 

12.

Dirty/clogged

muffler.

12.

Clean/replace

muffler.

 

 

 

 

13.

Loose or damaged

wiring.

13.

Check

all wiring.

 

 

 

 

 

14.

Carburetor

out of adjustment.

14.

See "To Adjust

Carburetor"

in Service

Adjustments

15.

Engine valves out of adjustment.

15.

Contact an authorized

service center/department.

1.

Worn,

bent

or loose

blade.

1.

Replace blade. Tighten blade bolt.

 

2.

Bent blade

mandrel.

 

2.

Replace blade

mandrel.

 

 

 

3.

Loose/damaged

part(s).

3.

Tighten

loose

part(s).

Replace

damaged parts.

26

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Husqvarna LTH18538 owner manual Troubleshooting

LTH18538 specifications

The Husqvarna LTH18538 is a robust and versatile riding lawn mower designed for homeowners seeking a reliable solution for lawn care. This mower is equipped with a powerful 18.5 horsepower Kohler engine, which provides ample power to tackle different terrains and ensures a reliable start every time. It features a hydrostatic transmission that offers smooth and effortless operation, allowing users to experience a more enjoyable mowing experience without the need for gear shifting.

One of the standout features of the LTH18538 is its 38-inch cutting deck. The cutting deck is made from durable materials and ensures a clean and precise cut, contributing to a healthier lawn. The mower also offers a variety of cutting heights, adjustable from 1 to 4 inches, allowing users to customize the grass height based on their preferences and lawn conditions. The design of the cutting deck enhances maneuverability, making it easier to navigate around trees and garden beds.

Comfort and convenience are key considerations in the design of the Husqvarna LTH18538. It comes with an ergonomic seat with adjustable armrests, ensuring that users can mow for extended periods without discomfort. The steering wheel is positioned for easy access, and the controls are intuitively laid out, enhancing the overall user experience. The large rear tires provide excellent traction, even on uneven ground, which ensures that the mower can handle inclines and rough patches effectively.

Technologically, the LTH18538 is equipped with features that enhance performance and ease of maintenance. The mower has a built-in electric blade engagement system, allowing users to start the blades quickly and efficiently. An easy-to-access battery, along with a convenient air filter, makes routine maintenance hassle-free. Additionally, the mower's compact size allows for easy storage in garages or sheds, making it an ideal choice for those with limited space.

Overall, the Husqvarna LTH18538 combines power, convenience, and innovative technology, making it a standout model in the riding mower segment. Suitable for small to medium-sized lawns, this model strikes a perfect balance between performance and user comfort, ensuring a well-maintained lawn with minimal effort. Whether it's for regular mowing or seasonal upkeep, the LTH18538 is an excellent addition to any home gardening toolkit.