Husqvarna LZ5227TXPKOA, LZ6123LTKOA, LZ6127TKOA, LZ6130TXPKOA, LZ7230TXPKOA Operator's Manual page 65

The engine seems weak.
The engine overheats.
Battery not charging.
The machine moves slowly, unevenly,
or not at all.
Mower deck not engaging.
TROUBLE SHOOTING GUIDE
• Wrong fuel type.
• Water in the fuel.
• Clogged air filter.
• Clogged air filter.
• Defective spark plugs.
• Carburetor incorrectly adjusted.
• Clogged air intake or cooling fins.
• Engine overloaded.
• Poor ventilation around engine.
• Defective engine speed regulator.
• Soot in the combustion chamber.
• Too little or no oil in the engine.
• Defective spark plugs.
• Pre-ignition incorrect.
• Poor contact with battery terminal
cable connectors.
• Parking brake on.
• Bypass valve on pump open.
• Drive belt for the pump slack or
has come off.
• Defective hydraulic system.
• Air in the hydraulic system.
• Drive belt for the mower deck has come loose.
• Contact for the electromagnetic coupling
has loosened.
• The blade switch is faulty or has come loose
from the cable contact.
• The fuse has blown.
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