Helping Students Prepare and Pass The State Of Michigan Mechanical Exam Since 2007 Please contact Ken Corwin with any questions at mmcexamprep@yahoo.com or 231-631-3688
The 2021 Michigan Mechanical Code took effect on March 12, 2024
The exams were updated using the 2021 Codes on July 10, 2024
The 2021 Michigan Mechanical Exam Prep Self Study Course which
includes the green workbook and flash drive is now available.
See section below for the self-study options.
One January 10, 2025 the State of Michigan Mechanical Division
decided to go from the 2015 Michigan Residential Code to the
2024 Michigan Residential Code. This will most likely take place late
summer of 2025.
Who We Are
Ken Corwin is a qualified instructor with over 35 years in the HVAC industry including 10 years as a Registered Code Official in Grand Traverse County. Ken began teaching this course in 2007 and continues to stay up on legislative changes, code updates, and code adoptions. He currently works for the MDOC as a Certified Fire Inspector Supervisor. Ken is committed to helping you pass your exam and will stay with you through the entire process. Once you obtain the license you are seeking he will also be available for any questions you may have as you continue down your career path.
2025 Class Dates.
Saturday, November 8, 2025
Saturday, December 20, 2025
The cost of an in person class is $200.00.
All classes are done in person and held at:
Hyatt Place Lansing-East 2401 Showtime Drive Lansing, Michigan 48912
Classes begin at 8:00 a.m. and typically end at 4:00 p.m.
To register for a class send a $50 deposit via check or money order made out to "Ken Corwin" with the date of the class you prefer, your email address, and phone number to:
Ken Corwin 436 E. Main Street Fremont, MI 49412
To pay electronically please use one of the two options below.
PayPal: mmcexamprep@yahoo.com or 231-631-3688
Venmo: @mmcexamprep
Once you submit a payment, send an email to mmcexamprep@yahoo.com with the date of the class you want to attend.
Once payment is received, you will receive an email confirmation with more details regarding the day of the class and what you will need to bring to the class.
Each class requires a minimum of 6 students and has a maximum capacity of 30 students.
What We Do
Teach in person classes to prepare individuals to pass the State of Michigan Mechanical Exam.
Classes will include a workbook with the required material to prepare for the law portion, consisting of The Construction Code Act, Act 230 of 1972 and The Skilled Trades Act, Act 407 of 2016.
Also, in the workbook is the following:
1. Law based test with master answer sheet.
2. A sample International Fuel Gas Code test with a master answer sheet.
3. A sample Michigan Mechanical Code test with a master answer sheet.
4. A sample ACCA Manual D test with a master answer sheet.
5. A sample Heating Service test with a master answer sheet.
6. A sample Cooling Service test with a master answer sheet.
7. A sample final HVAC test that combines the IFGC, MMC, and ACCA Manual D all in one to take when you have mastered the individual tests and a master answer sheet.
The class will cover how to use the code books quickly and efficiently to find test questions, how to properly utilize the charts and tables within the code books, and how to use the formulas used in the ACCA Manual D book.
Note: The sample tests and questions are created by Ken Corwin and are not from the State of Michigan Mechanical Exam.
Students are required to bring to class a copy of the:
2021 International Fuel Gas Code
2021 Michigan Mechanical Code
ACCA Manual D 2016 Edition or newer
Exam Process
The first thing to do is go to the link below and watch the YouTube video created that covers the information below.
https://www.youtube.com/ watch?v=KeV3Ahphq3s
You must submit an exam application to the State of Michigan Licensing Division. Go to this website to find the State of Michigan Mechanical Licensing/Registration & Application information:
You must complete the application and submit it to the State of Michigan including your work experience documentation.
The best way to do this is to apply and pay on line electronically by going to the link on page 1 of the Mechanical Exam Application.
Effective July 29, 2021 you must provide documented work experience signed by the contractor of record you worked for with a minimum of 6,000 hours for each category you want to test in.
The State of Michigan created a form at the link below.
PSI updated their Michigan test bulletin on November 16, 2023. Go to this link to watch a YouTube video. New option to purchase additional time to take a test or have a someone read you the questions on the test if you speak a different language.
1. The 2021 Michigan Mechanical Exam self-study course is available for $210.00. This includes the green workbook and flash drive.
2. The 2021 Michigan Mechanical Exam Green workbook is available for $110.00.
3. The 2021 Flash Drive which coincides with the 2021 green workbook is available for $110.00.
Here is the link to a YouTube video to copy and paste that covers the options.
https://www.youtube.com/watch?v=b4cnBEPv2Jo
All items are shipped two day USPS and once mailed, you will receive an email with a photo of the USPS shipping receipt with tracking number.
To pay by check or money order send a check made out to "Ken Corwin" with your email address and mailing address to:
Ken Corwin 436 E. Main Street Fremont, MI 49412
To pay electronically, please use one of the two options below and provide your email address and mailing address.
PayPal: mmcexamprep@yahoo.com or 231-631-3688 Venmo: @mmcexamprep
2021 Michigan Mechanical Code
To purchase the 2021 Michigan Mechanical Code through ICC and receive the State of Michigan discount copy and past the link below and complete the process. Final price is $130.18 with standard shipping.
https://codes.iccsafe.org/codes
You can also find all of the code books on Amazon
TESTIMONIALS
February 10, 2024
Hi Ken, I ordered this self study course from you in September. Between work and family obligations I didn’t open it until two weeks ago. I wanted to let you know that I finally got around to taking the equipment exam today. Scored an 84.6% on my first attempt, I don’t believe that would have happened without your self-study course. Thank you for your help in preparing for the exam, you are providing a great service to those of us in the industry. Best Regards, Owen
March 16, 2024
Hey Ken, Just wanted to thank you for putting together such a great study program for the mechanical test. I passed today thanks to your help. Appreciate it. Justin
April 19, 2024 Thank you so much for the information. I am happy to report that I tested in 4 categories and passed every one the first time. I'm not sure how people would get any usable study material without the service you provide. Thanks again Josh
April 27, 2024
Hey Ken,
I took my Category 2 mechanical exam today and passed!! I just wanted to thank you for putting together the course. It was great and definitely was a big pat of my success today. Thanks again!! Nate
April 30, 2024
Ken, it's Duane, I passed! Thanks for your study guide.
May 1, 2024
Hey Ken,
This is Collin. I took your October class last year (2023) with a couple of coworkers. I just wanted to text you and let you know that since then we have all passed and that I would say in large part is due to your class. Just wanted to say thank you again and have recommended you out to a couple of other guys getting ready to take your course.
May 14, 2024
Good afternoon Ken.
Today I passed my test with 85%. I would like to thank you for your help, without your help I wouldn't be able to make it.
Talal
June 13, 2024
“Ken, Thank you for providing us with the tools and confidence to get through the state exams. Your course is a must for all applicants. Today I passed and feel optimistic about my future in the trade” (Passed Category 2 HVAC, Category 5 Limited Heating Service and Category 7 Limited Cooling Service)
Jordan
June 15, 2024
Hello,
I just wanted to say thank you. The study guide was perfect, and made taking the test a lot easier. Passed the test with an 82% Thank you again.
John
Hi Ken,
I passed my exam yesterday (Category 2 HVAC) on the first time through. They had a lot of questions off every small chart from both IFGC AND MMC. It threw me off because I was looking in the body of the code. There were only 3 or 4 from the law portion. Thank you for your book and help. I'm going back to do heat and cool service.
Ray
July 4, 2024
Hey Ken,
Wed did it! I just wanted to say thanks for all of your help, I could not have done it without you, Buddy. Money well spent! Keep up the good work!
Gene
November 16, 2024
Good afternoon, Ken.
I passed all three boiler tests. Thank you for everything. Have a wonderful day.
Danny
December 28, 2024
Ken,
I really appreciate your help since taking the class (December 7, 2024), I knocked out categories 1,2,5,6,7,8. Your class was instrumental. I have at least 1 other colleague that plans to take your upcoming class in January.
Thanks,
Heath
January 18, 2025
Ken,
Thanks for all the help over the last year. Just wanted to let you know I passed the equipment test. The updated study guide helped out a lot!
Shane
January 27, 2025
Hello Ken,
Just wanted to reach out and thank you for your class and study manual. I passed my category 2 test on second approach. On my first try I missed the mark by 13 questions but on second I did well, took more time to re-read all code books and study the math.
Paul
April 3, 2025
Ken,
I just wanted to say thank you so much for your exam prep book! I was able to pass HVAC Equipment, the Unlimited Heating Service, and Unlimited AC Service with your help!
Nate
April 22, 2025
Good afternoon I just wanted to send you a quick email and thank you for your prep course, it was a huge help in me passing my exam today. I was also able to get extra time just by requesting it.
Tom
May 5, 2025
Good Afternoon Ken,
First off, I wanted to say thank you, took my mechanical test and passed 1,2,4,5,7 all on my first go around. Your study guides were great!
Caleb
May 14, 2025
Hey Ken, I just wanted to reach out and say thanks for the pre test study Info. I passed the darn thing and your material was very helpful!
Cole
Good evening,
I took your class back in October and I just passed the HVAC equipment exam on first try! I will say there was quite a bit of solar energy, LP , manual d and ventilation rate questions on the exam. There wasn’t any gas pipe sizing questions and not very many venting table questions.
The study guide really helped and I’m looking forward to taking my service tests as well.
Best,
Mitchell
July 15, 2025
I passed my HVAC Equipment test today. Thank you for your help in the class on Saturday (July 12, 2025), my score increased about 25 questions! I really wish I knew about this earlier.
Luke
September 12, 2021
Ken, thank you for the class. Between that, the hard drive, and the green workbook I took my test today and passed the first time. The extra time was awesome to go over the marked questions . Thank you a ton.