Their duties include: Repair and Maintenance: Fixing plumbing, electrical, HVAC, refrigeration, and carpentry issues, including doors, locks, outlets, and water heaters, as well as repairing hotel equipment like ice machines, fitness room equipment, hot tubs, and emergency generators. Preventive Maintenance: Performing routine inspections, lubricating hinges, replacing HVAC filters, testing emergency lighting, and conducting scheduled maintenance to prevent equipment failure.