Arizona C-39 Air Conditioning Contractor Exam Prep

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Your access starts when you do: the days begin the first time you open the course, not at checkout (or 14 days after purchase, whichever comes first).

Official sitting

Arizona C-39 Air Conditioning Contractor exam at a glance

The Arizona C-39 Air Conditioning Contractor exam has 80 questions and a time limit of 3 hours 30 minutes. That works out to about 2.6 minutes per question. Figures are from the official candidate bulletin, checked October 8, 2026.

Questions80
Time3 hours 30 minutes

Confirm question count, time, open-book rules, and passing score on the live board bulletin before you sit. We do not guarantee a passing result. Source: PSI AZ C-39R/L-39 6/8/2023, checked October 8, 2026. How we source exam facts

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What’s included

58,000+ word study guide

Worked calculations, code-section breakdowns, exam traps, a key-terms glossary and a 30/60/90-day plan.

4 full-length practice exams

Original questions weighted to match the topic mix of the real exam.

320 practice questions

Every one with a written explanation and the code section behind the answer.

Same study guide and four exams on every term. You are choosing how long you can log in.

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What this prep covers

  1. Start Here: Your Arizona C-39 Exam and How to Use This Guide
  2. Refrigeration
  3. Air Conditioning
  4. Warm Air Heating
  5. Controls and Motors, and Evaporative Coolers
  6. Boilers, Water Piping Systems, and Steam, Hot, Chilled, and Condensing Water
  7. Ventilation and Fuel Piping Systems
  8. Testing, Balancing, and Inspections, and Sizing and Estimating

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Common questions about this exam

How many questions are on the Arizona C-39 Air Conditioning Contractor exam?

The Arizona C-39 Air Conditioning Contractor exam has 80 questions and a time limit of 3 hours 30 minutes, about 2.6 minutes per question. Check the current board bulletin before you book.

How much practice does this prep include?

It includes 4 full-length practice exams and 320 practice questions in total. Every question has a written explanation naming the code section the answer comes from.

How long is the study guide?

The Arizona C-39 Air Conditioning Contractor guide runs to roughly 58,131 words in 8 sections, starting with “Start Here: Your Arizona C-39 Exam and How to Use This Guide” and ending with “Testing, Balancing, and Inspections, and Sizing and Estimating”.

How long do I get access?

Choose 30, 60 or 90 days at checkout. Your days do not start at checkout: they begin the first time you open the course (or 14 days after purchase, whichever comes first). Access works on any device, and you can retake every practice exam as often as you like. Days remaining are shown in your dashboard and you can extend at any time.

Is this an official Arizona C-39 Air Conditioning Contractor exam?

No. This is independent preparation material. It is not affiliated with or endorsed by any state licensing board or exam vendor, and it does not contain real exam questions. Always confirm current requirements with your licensing board.

About this prep

This prep is built specifically for the Arizona C-39 Air Conditioning Contractor examination and includes a 58,000+-word study guide written for this exam, 4 full-length practice exams and 320 practice questions, each with a written explanation.

How access works

You are paying for access length (30, 60, or 90 days). The study guide and four timed exams are the same on every term. Your days start the first time you open the course, not at checkout (or 14 days after purchase, whichever comes first), and access works on any device for that term.

Not affiliated with or endorsed by any state licensing board or exam vendor. For exam-preparation purposes only.