Commercial HVAC/Refrigeration Technician
Posted Sep 15, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about a time you worked with a BMS technician or controls vendor to fix a sequence that was not doing what it should.
What they are checking: Whether they can collaborate across trades and describe a controls problem clearly to someone else.
Tell me about a time you had to work on equipment that needed lockout tagout. What did you do and why?
What they are checking: Whether safety habits are automatic, since the posting calls safety essential in a fast-paced facility.
The role also includes basic electrical, plumbing and painting. What general building repairs are you comfortable taking on, and where do you draw the line?
What they are checking: Honest range of skills and knowing when a task needs a licensed specialist.
What would you do
You get an emergency call that a walk-in cooler is warming up while you are halfway through a preventive maintenance task. How do you handle it?
What they are checking: Prioritizing a failure that can spoil product or hurt people over routine work, and closing out safely.
You open a work order and realize the repair needs parts you do not have on the shelf. Walk me through what you do next.
What they are checking: Estimating materials, keeping inventory current and communicating timelines rather than leaving a ticket stalled.
An employee complains their area is too cold every afternoon. How do you approach that request?
What they are checking: Customer service with occupants and the ability to separate a comfort complaint from an equipment fault.
About the work
Walk me through how you would troubleshoot a rooftop unit that is running but not cooling the space it serves.
What they are checking: A logical diagnostic sequence across airflow, refrigerant and controls instead of guessing at parts.
How have you used a building automation system to find a problem before you ever climbed onto the roof?
What they are checking: Real comfort reading BAS trends, alarms and points, which this posting names as a core tool.
What does a good preventive maintenance visit on a chiller or large air handler include, in your experience?
What they are checking: Depth of hands-on PM knowledge that actually extends equipment life and cuts downtime.
What EPA certification do you hold, and how do you handle refrigerant recovery and record keeping on the job?
What they are checking: Regulatory compliance with refrigerant handling, which carries real legal exposure for the employer.
How do you keep your maintenance records so someone else could see what was done to a unit last year?
What they are checking: Documentation discipline that supports equipment history, audits and smarter repair decisions.
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Practice this out loudThe full job description
As published by Cigna.