3-Day EV A/C System Repair Intensive Course in Guangzhou

What Is the 3-Day EV A/C System Repair Training Course?

A specialised 3-day hands-on programme focused exclusively on EV thermal management and climate control systems. Participants learn EV A/C system architecture, electric compressor diagnostics, heat pump system operation and service, PTC heater testing, refrigerant recovery and charging, cooling/heating circuit fault diagnosis, and climate control system repair — using real A/C system components from BYD, GAC, and other mainstream manufacturers.

3 Days Intensive Max 10 Participants Real EV A/C Systems Joint Certificate

Who Should Attend?

This course is designed for automotive technicians with prior repair experience who want to specialise in EV thermal management and A/C system repair. It is ideal for workshops that already service Chinese EVs and need in-house climate control repair capability, as well as technicians who have completed the 7-day complete training and want deeper A/C-focused practice.

Not suitable for: Complete beginners with no automotive repair background. If you have never used a multimeter, never worked on vehicle electrical systems, or have no experience with conventional A/C systems, start with the 7-day complete course instead.

Why EV Thermal Management & A/C Repair Training Matters

A/C system faults are among the most common and frustrating issues overseas workshops face with Chinese EVs

A/C faults = dealership visits

Most overseas workshops cannot diagnose or repair EV thermal management systems internally. Every A/C-related fault means sending the vehicle to a dealer — costing time, money, and customer trust.

Outsourcing is not sustainable

As Chinese EV volumes grow in CIS, Southeast Asia, and the Middle East, workshops that cannot handle A/C system repairs in-house will lose customers to competitors who can. Remote diagnostic support helps in the short term, but building in-house capability is the long-term answer.

3 days = immediate capability

You don't need 7 days to start repairing EV A/C systems. This focused programme teaches the specific skills you need — compressor diagnostics, heat pump service, refrigerant handling — in 3 intensive days using real systems.

A/C Diagnostics & Thermal Management Skills You Will Master

Practical, job-ready skills — not theory exams

Diagnose electric compressor faults — winding resistance, insulation, inverter communication, and NVH analysis

Service heat pump systems — refrigerant circuit switching, reversing valve operation, and defrost cycle diagnosis

Test and replace PTC heaters — resistance measurement, relay diagnostics, and safe replacement procedures

Perform refrigerant recovery, vacuum, and charging using professional R134a/R1234yf equipment

Diagnose cooling/heating circuit faults — water pump, expansion valve, three-way valve, and coolant flow issues

Read and interpret thermal management DTCs using OEM and universal diagnostic software

Leak detection using electronic detectors, UV dye, and nitrogen pressure testing methods

Follow the standard A/C fault diagnosis workflow: Complaint Verification → System Scan → Data Analysis → Component Test → Repair & Verification

Want to see what EV faults look like in real workshops? Read our technical case studies from overseas repair scenarios. Planning to open an EV repair shop? See our 2026 EV workshop equipment budget guide with three tiers from ¥24,500 to ¥79,800.

3-Day EV A/C System & Thermal Management Course Schedule

12 modules · 70% hands-on practice · Real EV A/C systems and thermal management components

Day 1: EV Thermal Management Fundamentals & A/C System Architecture

Time	Module	Core Content	Format
09:00–09:30	Course Kick-off & Introduction	Course objectives overview, participant needs assessment, safety briefing & liability waiver signing	Lecture
09:30–10:30	Module 1: EV Thermal Management Overview & Safety	EV thermal management system architecture overview · Comparison: conventional A/C vs EV thermal systems (compressor, PTC, heat pump) · Safety: HV isolation, refrigerant handling, PPE · GT/T 37983 EV thermal safety specs	Theory + Practical
10:45–12:00	Module 2: Electric Compressor System Diagnostics	Electric compressor types (scroll, swash plate) and specifications · Compressor control circuit and communication protocols · Winding resistance, insulation, and inverter diagnostics · Common compressor faults: NVH, leakage, communication failure	Theory + Visual ID
14:00–15:30	Module 3: Refrigerant Circuit & Heat Pump System	Refrigerant circuit layout: condenser, evaporator, expansion valve, reversing valve · Heat pump system operation and switching logic · Refrigerant types: R134a vs R1234yf properties and handling · System pressure testing and performance evaluation	Theory + Practical
15:45–17:00	Module 4: PTC Heater & Cooling/Heating Circuit	PTC heater structure and working principle · Resistance measurement and relay diagnostics · Cooling/heating circuit: water pump, expansion valve, three-way valve · Coolant flow testing and temperature differential analysis	Theory + Practical

Day 2: A/C System Service & Refrigerant Handling

Time	Module	Core Content	Format
09:00–10:00	Module 5: Refrigerant Recovery, Vacuum & Charging	Refrigerant recovery machine operation · Vacuum pump procedure and duration standards · Charging by weight: correct refrigerant quantity lookup · System performance verification after charging · Environmental and safety regulations	Hands-on (Demo + Practice)
10:15–12:00	Module 6: Leak Detection & System Sealing	Electronic leak detector usage and limitations · UV dye injection and detection method · Nitrogen pressure testing for hard-to-find leaks · O-ring and seal replacement procedures · Joint and fitting inspection standards	Theory + Practical
14:00–15:30	Module 7: Compressor Replacement & Component Service	Compressor removal: refrigerant recovery, HV power-down, disconnect lines · New compressor installation: oil quantity, O-ring lubrication, torque sequence · System evacuation and charging after replacement · Performance verification and noise check	Hands-on (Demo + Practice)
15:45–17:00	Module 8: Heat Pump System Diagnosis & Service	Heat pump mode switching test (cooling → heating → defrost) · Reversing valve function verification · Defrost cycle performance and sensor check · Heat pump efficiency evaluation and common fault patterns	Theory + Practical

Day 3: Advanced Diagnostics & Comprehensive Practice

Time	Module	Core Content	Format
09:00–10:15	Module 9: Thermal Management DTCs & Data Analysis	Reading and interpreting thermal management DTCs · Data stream analysis: compressor RPM, discharge temp, evaporator temp, coolant flow · CAN bus thermal system message capture · Distinguish sensor faults from actuator faults	Theory + Practical
10:30–12:00	Module 10: Climate Control System & Air Distribution	Climate control ECU function and logic · Air distribution: mode door, blend door, recirculation door · Blower motor and resistor diagnostics · Cabin air quality sensor and automatic mode calibration	Theory + Practical
14:00–15:30	Module 11: Comprehensive Fault Simulation	Team competition covering: compressor communication failure · insufficient cooling · no heat in heating mode · refrigerant leak · PTC heater fault · defrost cycle malfunction — Standard workflow: Complaint Verification → System Scan → Data Analysis → Component Test → Repair & Verification	Team Competition
15:45–16:30	Module 12: Course Wrap-Up	Systematic review of 3-day core knowledge · Q&A and experience sharing	Lecture
16:30–17:00	Graduation Ceremony	Certificate presentation & group photo	—

Meet Your Instructors

Certified NEV specialists from Guangzhou's public transport repair division

11 Certified NEV Specialists · 1 National Skill Master Workshop · 3 National Traffic Technology Experts · 4 Guangdong May 1 Labor Medalists

Chen Weilin

National Skill Master Workshop Lead

Senior NEV Technician · National May 1 Labor Medal · Expert in HV system safety and thermal management systems

Zhang Yongyou

A/C System Specialist

Guangdong May 1 Labor Medal · Certified in electric compressor diagnostics and refrigerant handling procedures

Lin Zhongxin

A/C System Specialist

Guangdong May 1 Labor Medal · Specialised in thermal management diagnostics and heat pump system service

Zeng Yuanqiang

NEV Repair Standards Author

Co-author of "Guangzhou NEV Repair Service Guidelines" · National Traffic Technology Expert

Our full training team includes 11 certified specialists from Guangzhou's public transport NEV repair division — all holding national or provincial technician credentials.

Technicians Worldwide Are Interested

Since launching this 3-day intensive, we have received enquiries from technicians worldwide

🇳🇵

Nepal

Workshop owner enquiring about EV heat pump system repair

🇰🇭

Cambodia

Technician seeking specialised EV A/C compressor diagnostics training

🇨🇭

Switzerland

EV service centre interested in Chinese EV thermal management training

The low price point (¥8,000 without accommodation) combined with A/C-focused specialisation has attracted interest from diverse markets — from Southeast Asia to Europe. For a real-world example of how Chinese EV systems behave in overseas workshops, see our BYD Sealion 07 Ukraine localization case study.

Fees & What's Included

3-Day A/C System Intensive

¥8,000

CNY per person (maximum 10 participants per session)

A focused, fast-track programme for technicians who need EV A/C repair skills now.

Enrol Now

What's Included

Senior EV A/C system instructor On-site English interpretation Joint certificate — Nevfix.net + partner facility Digital training materials Hands-on with real EV A/C systems (BYD, GAC) Refrigerant recovery equipment & diagnostic tools Post-training alumni support group

Not Included

Accommodation (we can recommend nearby hotels) Meals (lunch provided on training days) Visa & travel expenses

A/C Course vs. 7-Day Complete Course

Unsure which course fits your needs? The 3-day intensive focuses exclusively on EV A/C system diagnostics, compressor service, heat pump systems, and refrigerant handling. The 7-day course covers the full vehicle — HV safety, drive motors, charging systems, CAN networks, and commercial vehicle EV systems.

Criteria	3-Day A/C Intensive	7-Day Complete Course
Price	¥8,000 / person	¥23,800 / person
Duration	3 days	7 days
Focus	A/C system + thermal management only	Full vehicle (HV, motor, charging, CAN, battery, commercial)
Accommodation	Not included	Twin-share included
Best For	Techs with auto repair experience wanting A/C specialisation	Beginners and career switchers wanting full EV repair capability
Why this price?	Shorter duration, no accommodation — you only pay for A/C-focused training	Full immersion: 7 days, twin-share accommodation, all major EV systems covered
Certificate	Joint certificate	Joint certificate

Frequently Asked Questions

Do I need prior experience to attend the A/C system repair course?

This 3-day intensive course is designed for technicians with prior auto repair experience, ideally with some background in conventional A/C systems. Basic knowledge of electrical systems is helpful but not mandatory — Day 1 covers EV thermal management fundamentals before any hands-on work begins.

Can I independently repair EV A/C systems after completing this course?

The course equips you with the skills to diagnose electric compressor faults, service heat pump and PTC heater systems, perform refrigerant recovery and charging, troubleshoot cooling/heating circuits, and repair climate control systems. With proper tools and equipment, most graduates can handle common EV A/C faults independently.

Which EV brands are covered in the A/C training?

The training uses real A/C system components from mainstream Chinese EV brands including BYD and GAC. Diagnostic procedures are applicable across brands that use similar thermal management architectures.

What is the difference between the 3-day A/C course and the 7-day complete course?

The 3-day A/C intensive focuses exclusively on thermal management — electric compressor diagnostics, heat pump systems, PTC heaters, refrigerant handling, and climate control. The 7-day complete course covers the full vehicle: HV safety, drive motors, charging systems, commercial vehicle systems, CAN networks, and battery systems. The 3-day course is ideal for technicians who want to specialise in A/C repair quickly.

Does the 3-day course fee include accommodation?

No. The 3-day intensive course fee is CNY 8,000 per person and covers tuition, hands-on materials, English interpretation, digital materials, and the joint certificate. Accommodation and meals are not included, but we can recommend nearby hotels at preferential rates.

When are the upcoming 3-day A/C course dates?

A/C system repair intensive courses are scheduled monthly. Contact us via WhatsApp or email for the next available session date. Sessions are limited to 10 participants to ensure sufficient hands-on time with real A/C systems.

How do I enrol? What is the payment process?

Enrolment is simple: (1) Contact us via WhatsApp or email to confirm your preferred session date. (2) We will send you a course outline and payment details. (3) A deposit secures your seat, with the balance due before the course starts. We accept WeChat Pay, Alipay, USDT, and Visa.

Who should NOT attend this course?

This course is not suitable for complete beginners with no automotive repair background. If you have never used a multimeter, never worked on a vehicle's electrical system, or have no experience with conventional A/C systems, we recommend starting with the 7-day complete training course which builds foundational knowledge from Day 1.

What tools and equipment do I need after the course to repair EV A/C systems?

To perform EV A/C repairs independently, you will need: a refrigerant recovery/recycling machine, manifold gauge set, leak detector (electronic or UV), vacuum pump, digital thermometer, multimeter, insulated hand tools, and diagnostic software for EV thermal management systems. The course includes guidance on sourcing these tools — many are available through NEV Fix's parts network. For a complete breakdown of workshop setup costs and equipment tiers, see our 2026 EV workshop equipment budget guide (three tiers from ¥24,500 to ¥79,800). You can also search OE part numbers for specific replacement components.

A/C system faults are among the most common reasons overseas workshops send EVs to dealerships. This 3-day course gives your team the skills to diagnose and repair thermal management systems in-house — saving time and reducing outsourcing costs.

Ready to Master EV A/C System Repair?

Monthly intake · Max 10 per class · ¥8,000 per person

📋 3-Step Enrolment:

1. WhatsApp us to confirm your preferred month
2. Receive course outline & payment details
3. Deposit secures your seat — balance due before course starts

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✅ Monthly intake ✅ Real A/C systems ✅ Joint certificate ✅ English interpretation

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