Commercial Chiller Service Technician

About Us

We are a full-service HVAC, building automation, chiller, and retrofit contractor with a reputation for combining high-quality consulting services with customized energy solutions. Our integrated, single-source solutions include turnkey in-house capabilities with design assistance, as well as engineering applications and automated control systems.

Essential Duties & Responsibilities

• Maintain and repair central plant equipment, including chillers 100 tons and larger, motors, pumps, valves, controls, cooling towers, vane axial fans, and other auxiliary equipment.

• Overhaul of centrifugal chillers a plus.

• Familiar with all aspects of rigging.

• Support the office with recommended repairs from delivery to completion.

• Availability for emergency service calls “on-call” through normal rotation.

• Responsible for end-to-end testing, programming, start-ups, and commissioning.

• Schedule and manage site-wide maintenance, troubleshooting, and repair duties for chillers, cooling towers, and central plant equipment.

• Perform daily and monthly preventative maintenance on all associated equipment of chillers, cooling towers, and central plant equipment.

• Ensure completion of maintenance within the scheduled month and allocated time.

• Maintaining positive relationships with customers, vendors, and co-workers

• Provide technical support and troubleshooting, repair, and maintenance of all on-site equipment.

• Attend monthly safety meetings.

• Ensure compliance with safety policies and procedures.

• Work directly with the Chiller Field Supervisor on new and existing customer opportunities or issues.

Qualifications

• 5 years of work experience at the journeyman level and technical schooling.

• Commercial/Industrial air conditioning experience required.

• Knowledge of Chiller, HVAC, and Central Plants.

• HVAC large tonnage field knowledge is required.

• Must be available for emergency service calls “on call” through normal rotation.

• EPA certified.

• Effective oral and written communication skills.

• Valid driver’s license.

#Mesa #LI-Mesa #LI-HVACjobs #LI-Onsite

Equal Opportunity Employer

As a leading provider of mechanical and electrical construction, facilities services, and energy infrastructure, we offer employees a competitive salary and benefits package and we are always looking for individuals with the talent and skills required to contribute to our continued growth and success. Equal Opportunity Employer/Veterans/Disabled.

Affirmative Action Policy

Please review ourAffirmative Action Policy ( .

Notice to Prospective Employees

Notice to prospective employees: There have been fraudulent postings and emails regarding job openings. EMCOR Group and its companieslist open positions here ( . Please check our available positions to confirm that a post or email is genuine.

EMCOR Group and its companies do not reach out to individuals to help with marketing or other similar services. If an individual is contacted for services outside of EMCOR’s normal application process – it is probably fraudulent.

Geographic Disclosure

Compensation Range: $40 - $90 per hour The hourly rate is determined by the CBA/rate sheet and test results.

Benefits are provided through local labor union aligned with collective bargaining agreement.

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Job Locations US-CA-Chino

ID 2026-53062

Company Mesa Energy Systems, Inc.

Category Maintenance

Position Type Full-Time

Location Type Onsite

Posted Date 3 weeks ago (10/6/2026 6:48 PM)