Electrical Service Technician (EST) (Level 3)
Electrical
A course by
Toi Ohomai Institute of Technology
An evening course for those already working in the electrical industry to gain the Electrical Service Technician (EST) qualification. Covers practical and theoretical knowledge in appliance servicing, installation, and safe working practices.
NZ$1,408
inc GST
Enquire about international pricing
Core skills this course teaches
Service and install large electrical appliances
Gain the skills to install and service major commercial and domestic electrical appliances, including refrigeration units and air conditioners.
Work safely with electrical systems
Understand and apply safety procedures, safe working practices, and appropriate measurement techniques when working with electrical appliances.
About This Course
The Electrical Service Technician (EST) (Level 3) is designed for people currently working in the electrical industry. The course addresses New Zealand's skills shortage and prepares students to repair, maintain, disconnect, and reconnect single and three-phase electrical appliances, including commercial refrigeration and air conditioning equipment. Emphasis is placed on safety, measurement techniques, and safe work practices. Both theory and practical training are included, alongside preparation for the EWRB assessment.
Course Content
- Installation and servicing of large appliances (e.g., commercial refrigeration, air conditioning)
- Maintenance, disconnection, and reconnection of single and three-phase electrical appliances up to 460 volts
- Safety procedures and safe working practices
- Measurement techniques
- Theory examination preparation (EWRB ASPEQ)
- Practical assessment for EWRB registration
Entry Requirements
Must already be working in the electrical industry
Completion of a First Aid and CPR course
Build towards these roles
Electrical Service TechnicianElectrical Appliance InstallerElectrical Maintenance Technician
Build skills in these industries
ConstructionEnergyElectrical
Known for hands-on, industry-aligned education, Toi Ohomai focuses on giving learners real skills that lead to real outcomes. With strong employer connections, supportive teaching, and clear pathways across certificates, diplomas, and degrees, it’s a place where learning stays relevant and confidence grows over time. Courses span trades, construction, business, health, creative industries, technology, and primary industries, helping learners build experience and momentum for whatever comes next.
