Stationary Engineer III
Posted Sep 16, 2026 · We last checked this listing on Sep 20, 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.
Behavioral
Tell me about a time you had to troubleshoot a complex HVAC problem where the cause wasn't obvious. How did you figure out the root cause?
real diagnostic ability versus just parts-swapping, and whether they can work independently as the level III role demands
Tell me about a repair you had to make where you knew it would disrupt hospital operations or patient care if you got it wrong. How did you plan it?
judgment around minimizing impact to a functioning hospital, not just technical skill
Tell me about a time a less experienced coworker came to you with a problem. How did you help them without just doing it for them?
mentoring ability, since the role expects them to be an informal resource for peers
Outside of HVAC, this role covers plumbing, electrical, carpentry, and even snow removal. Tell me about your range across general maintenance trades.
whether the person is genuinely a generalist tradesperson or narrowly HVAC-focused
Technical
Walk me through how you'd bring a centrifugal chiller back online after an unexpected shutdown in a hospital building.
whether the candidate actually knows startup sequences and safety checks on critical equipment without needing to be walked through it
How do you use trending reports in a building automation system to catch a problem before it becomes an equipment failure?
whether they actually use BAS proactively rather than just reacting to alarms
Describe your experience with medical gas systems. What's your comfort level maintaining or troubleshooting them?
honesty about the 'intermediate' knowledge requirement, since gaps here carry serious patient safety consequences
What's your process for logging work in a CMMS, and why does accurate documentation matter in this kind of facility?
whether they understand recordkeeping ties directly to regulatory compliance, not just habit
What licensing do you currently hold, and how have you kept up with code and regulation changes that apply to boilers and HVAC equipment?
licensure verification and whether they treat continuing education as a real responsibility
Situational
You get a BAS alarm for a steam absorption chiller in the middle of the night with no one else on site. What's your process?
how they prioritize, whether they know when to escalate versus handle it solo, and comfort with being the only responder
A nurse calls to say a patient room is too warm and a patient is uncomfortable. How do you handle that call and the fix?
customer service instincts and ability to keep occupants informed while working in a live clinical environment
You're in the middle of preventive maintenance on a boiler when you get pulled to an urgent work order. How do you decide what happens next?
prioritization skills between scheduled PM work and reactive demands, and whether they close the loop on both
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As published by Advocate Health.
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