Husqvarna Z 248F Troubleshooting Manual

Engine will not start

• Blade switch is engaged
• Steering controls are not locked in the outer position
• Dead battery
• Contamination in the carburetor or fuel line
• Fuel supply shutoff valve is closed or in the wrong position
• Clogged fuel filter or fuel line
• Ignition system faulty

Starter does not turn the engine over

• Dead battery
• Battery terminal cable contacts are defective
• Blown fuse
• Fault in the starter safety circuit.

Engine runs rough

• Faulty carburetor
• Clogged fuel filter or jet
• Throttle lever in the Cold Weather starting position
• Clogged ventilation valve on the fuel cap
• Fuel tank almost empty
• Fouled spark plugs
• Rich fuel mixture or fuel-air mixture
• Wrong fuel type
• Water in fuel
• Clogged air filter

Engine seems weak

• Clogged air filter
• Fouled spark plugs
• Carburetor incorrectly adjusted
• Air trapped in the hydraulic system

Machine vibrates

• Blades are loose
• Blades are incorrectly balanced
• Engine is loose

Engine overheats

• Clogged air intake or cooling fins
• Engine overloaded
• Inadequate ventilation around engine
• Defective engine speed regulator
• Too little or no oil in the engine
• Contamination in the fuel line
• Fouled spark plugs

Battery not charging

• Battery terminal cable contacts are defective
• Charging lead is disconnected

Machine moves slowly, unevenly, or not at all

• Bypass linkages are engaged
• Transmission drive belt is slack or off
• Air trapped in the hydraulic system

Mower deck not engaging

• Drive belt for the mower deck is loose
• Electromagnetic coupling contact is loose
• Blade switch is faulty or loose from cable contact
• Blown fuse

Transaxle leaks oil

• Damaged seals, housing or gaskets
• Air trapped in the hydraulic system

Uneven mowing results

• Unequal air pressures in the tires
• Bent blades
• Suspension for the mower deck is uneven
• Blades are dull
• Driving speed is too high
• Grass is too long
• Grass collected below the mower deck