Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to fix a squeaking ceiling fan [title] Turn the ceiling fan off, and allow the blades to coast to a complete stop. [title] Grasp each blade and wiggle them to see if any of the fasteners (usually phillips type screws) are loose, and if so, tighten them. [step] It is unusual for loose blades to cause a squeak, but possible in some instances.

Ending1: If this is the case, refer to a repair shop or then a staff member. [title] Inspect the ceiling for holes and loose fasteners. Ending2: Also check that the light bulbs are securely in place; they can rattle around in their sockets. [title] Look for excess dust accumulated on the blade surface, especially the top. Ending3: [substeps] Wear gloves and safety glasses before loosening these fasteners. If they are not already on your hands, remove them first. Ending4: [title] With the blades in this position, loosen the fasteners on the sides of the fan. [title] Slide it out of the mounting holes in one of the outer wheels using a screwdriver.

Answer format: ending1/ending2/ending3/ending4