Guardian Engine Oil Leak

Generator enclosure or base shows signs of oil leakage onto pad or ground.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Loose oil filter, Loose drain plug, Cracked crankcase, Worn crankshaft seals

How to Fix / Troubleshooting

Safety first: Place the controller in OFF and open the main breaker. Allow the engine to cool before touching oil components.

  • Locate leak source: Clean the engine exterior and run briefly to identify the leak origin.
  • Check filter and drain plug: Tighten the oil filter and drain plug to specification. Replace the drain plug gasket if damaged.
  • Seal replacement: If oil appears at the crankshaft seals or case gasket, schedule service with a Guardian technician for seal or gasket replacement.
  • Maintain oil level: Keep oil at the proper level until permanent repairs are made.
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Repair Difficulty

Hard 4/5

Required Part

Engine Oil Filter
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