Description Assist in installing, maintaining, and repairing heating, ventilation, air conditioning, and refrigeration systems under the supervision of a licensed HVAC technician. Perform routine maintenance tasks such replacing filters, cleaning ducts and checking refrigerant levels to ensure systems operate efficiently. Requirements Must be able to go up and down ladders to get to roofs. Carry 49 lbs. Willing to learn. Must be able to work weekends Must successfully pass a drug screen and background check