Interested in learning how airconditioning units are installed, maintained, and checked for problems? You can start exploring the subject through the TESDA Online Program (e-TESDA), which offers free online courses.
Under Refrigeration and Airconditioning Servicing (DOMRAC), the platform offers Packaged Air Conditioner Unit Servicing. This course provides a starting point for learners who want to understand the work involved in servicing packaged airconditioning equipment.
About the Course
Packaged Air Conditioner Unit Servicing covers the installation, troubleshooting, and maintenance of indoor and outdoor packaged airconditioning units.
The course is part of RAC Servicing (DOMRAC) NC II. Its scope focuses on this type of equipment and represents part of the full qualification.
What You’ll Learn
The course is divided into two units. The first covers PACU installation, while the second focuses on troubleshooting and maintenance.
Unit 1: Packaged Air Conditioner Unit (PACU) Installation
This unit introduces the installation stages, from positioning the units to testing the equipment.
- Lesson 1: Outdoor Unit Installation
- Lesson 2: Indoor Unit Installation
- Lesson 3: Piping Installation
- Lesson 4: Electrical Installation
- Lesson 5: Evacuation Process
- Lesson 6: Charging Refrigerants
- Lesson 7: Leak Test
- Lesson 8: PACU Testing
Unit 2: Packaged Air Conditioner Unit (PACU) Maintenance
This unit covers identifying equipment problems and maintaining the unit.
- Lesson 1: PACU Troubleshooting
- Lesson 2: PACU Maintenance
Why Consider This Online Course?
Starting a new skill can feel overwhelming, especially when you are unsure where to begin. Online learning gives you a chance to become familiar with technical concepts before pursuing practical training.
Through e-TESDA, you can:
- Access free online learning materials.
- Study at your own pace.
- Use an internet-connected smartphone, laptop, or computer.
- Earn a Certificate of Completion after fulfilling the course requirements.
Set aside regular study time and take notes as you go. For equipment servicing, supervised hands-on practice is also a sensible next step toward developing practical skills.
How to Enroll
- Visit e-tesda.gov.ph.
- Create an account using an active email address.
- Confirm your registration through the link sent to your email. Check your spam folder if the message is missing.
- Log in and update your profile.
- Open the Refrigeration and Airconditioning Servicing (DOMRAC) category and select Packaged Air Conditioner Unit Servicing.
Follow the enrollment instructions displayed, then complete the lessons and required activities.
Will You Receive an NC II Certificate?
Completing an e-TESDA course allows you to earn a Certificate of Completion after meeting its requirements. To earn a National Certificate, you must pass a separate competency assessment at a TESDA-accredited assessment center.
Since this online course covers only part of the DOMRAC qualification, contact TESDA or an accredited assessment center about the preparation and requirements for the full qualification.
Ready to begin? Visit the official course page, create your account, and make time for your first lesson.
Disclaimer: This article is for educational purposes. We are not affiliated with TESDA or any government agency and do not process enrollment or assessment applications. Refer to the official e-TESDA website for current course information.






