HVAC Service Technician

Johnson Controls · Helsinki

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What you will do

As an HVAC Service Technician, you will support the service, maintenance, troubleshooting, and repair of chiller and HVAC systems across customer sites in Finland. Working on industrial, data center, and retrofit projects, you will play an important role in ensuring equipment reliability, performance, and customer satisfaction.

You will work closely with customers and technical teams to diagnose issues, perform maintenance activities, and support the efficient operation of critical HVAC systems. Experience with commissioning activities is considered an advantage.

Key Responsibilities

• Perform preventive and corrective maintenance on chillers and HVAC equipment.
• Diagnose and troubleshoot refrigeration, mechanical, electrical, and controls-related issues.
• Carry out repairs, component replacements, upgrades, and retrofit activities.
• Identify required spare parts and support parts selection and replacement planning.
• Record operating parameters and maintain accurate service documentation and reports.
• Support equipment start-up and commissioning activities when required.
• Coordinate technical issues with engineering, product, and service teams.
• Ensure all work is carried out in accordance with company safety standards and Finnish/EU regulations.
• Build strong customer relationships through high-quality service and technical support.

What we look for

Required

• Hands-on experience servicing HVAC and chiller systems.
• Good understanding of refrigeration systems, compressors, heat exchangers, pumps, controls, and associated HVAC equipment.
• Ability to read and interpret mechanical, electrical, and control drawings.
• Strong troubleshooting and fault-finding skills.
• Ability to work independently at customer sites while maintaining a strong safety mindset.
• Good English communication and service reporting skills.

Preferred

• Experience with large air-cooled and/or water-cooled chillers.
• Experience supporting data centers, industrial facilities, or other mission-critical environments.
• Relevant F-Gas certification or the ability to obtain it.
• Previous commissioning or start-up experience of HVAC equipment.
• Knowledge of chiller spare parts, component identification, and maintenance planning.
• Basic electrical and controls troubleshooting capability.
• Technical diploma or certification in HVAC, Refrigeration, Mechanical Engineering, or a related field.
• Finnish language skills.

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