Hands-on training

Become a car AC technician in 27 days — trained inside a working Chennai workshop

The Complete Car AC Servicing Course by GM Car A/C Service runs 27 days, on live vehicles, at our Ambattur workshop, for ₹52,999 all-inclusive. Batches hold 15–20 students. You finish able to diagnose, gas, repair and service a car AC system — and quote the work honestly.

Founded by G.M. Manigandan, Managing Director and lead technician, working on car A/C with his own hands since 2018. No job guarantee and no government certificate — real hands-on skill and a completion certificate signed by the technician who trained you. Read our reviews on Google.

Ask about the next batch Call +91 84280 00085

GM Car A/C Service Auto A/C Training · Chennai Call 84280 00085 WhatsApp us 27 days · in person 15–20 seats per batch Live customer vehicles Students from TN & AP

Car AC technician course · GM Auto A/C Training

₹1,75,000 value ₹52,999 Free ₹9,999 servicing guide included Reserve my seat on WhatsApp See the value breakdown

Free: the Complete Car AC Servicing Guide (₹9,999 value)

Compiled from our 14-book technical library — fundamentals, gauge reading, leak detection, compressor work and EV thermal safety. Free on WhatsApp for anyone who asks. No purchase needed. Enrolled students get it in the course kit.

Send me the free guide

Why a weekend is not enough

A weekend makes you curious. 27 days makes you a technician.

Most people learn car AC the slow way — years of watching over someone's shoulder, guessing, never trusted with the real job. This course compresses that into 27 structured days: classroom logic, live demos, and rotational hands-on on real vehicles.

The slow, informal way

✕ Years of unpaid helper work before anyone trusts you with a system
✕ YouTube theory with no live vehicle under your hands
✕ The electrical side and brand-by-brand differences never learned properly
✕ Cannot confidently quote a customer or stand behind a repair

The 27-day GM way

✓ Live demos on real customer cars — faults the way they actually show up
✓ Full system: gas, compressor, condenser, evaporator, auto-electrical, EV thermal
✓ Rotational hands-on in small groups — repeated tool-in-hand time, not once
✓ Finish with a certificate, 10+ manuals and a business & pricing playbook

What you will master

The 27-day curriculum

Four progressive phases across 27 working days. Every topic is taught on live vehicles in the workshop — the exact jobs paying customers bring in — reinforced by classroom theory and daily fault-finding drills.

Phase 1 · Foundations

AC fundamentals & gas
- How a car AC system works — components & refrigerant flow
- R134a & R1234yf: safe handling, recovery, evacuation
- Manifold gauge reading — pressures and what they mean
- Gas filling (single & double module) + leak-check discipline
Phase 2 · Diagnosis & leaks
Faults, leaks & cooling loss
- Not-cooling / weak-cooling / hot-air — structured diagnosis
- Leak detection: UV dye, electronic sniffer, soap test
- Cabin filter, blower & airflow faults; AC smell fixes
- When to refill vs. when to repair — quoting honestly
Phase 3 · Major components
Compressor, condenser, evaporator + electrical
- Compressor: clutch, relay, diagnosis, replacement
- Condenser & cooling-coil replacement
- Evaporator pull-down, dashboard-level work
- Auto-electrical: battery, alternator, wiring, blower, relays, sensors
Phase 4 · Brands & the business
All brands + running the work
- Brand-by-brand quirks: Maruti, Hyundai, Toyota, Tata, VW & more
- Commercial & bus AC basics; EV thermal systems
- Business & pricing playbook — quote, upsell, run a bay
- Final live-job assessment + completion certificate
What you actually get

₹1,84,999 of value — itemised, nothing invented

Every line below is a real deliverable you can hold, use, or attend. Your price this intake is ₹52,999.

27-day Complete Car AC Servicing Training live cohort, rotational hands-on ₹75,000 EV-AC & R1234yf Thermal Module EV cabin HVAC, heat-pump, electric compressor, HV safety ₹25,000 Auto-Electrical Diagnostics Module wiring, alternator, blower, relays, sensors ₹15,000 GM Car AC Master Library — 10+ manuals brand books + master manual ₹21,500 FREE Tool & equipment familiarisation gauges, recovery machine, vacuum pump, multimeter ₹15,000 Business & Pricing Playbook how a profitable AC bay quotes and upsells ₹10,000 90-day WhatsApp mentorship + alumni community ₹15,000 GM Master Technician Certificate signed by G.M. Manigandan ₹5,000 Priority hire / GM AC Partner pathway top performers ₹8,000 Business-setup starter kit GST/licence templates, first-customer scripts ₹6,500 The Complete Car AC Servicing Guide from the 14-book library — also free for enquirers ₹9,999 FREE Total real value ₹1,84,999

This intake

₹52,999 Everything above included

Hold your seat with a deposit. Balance before Day 1, or split across the 27 days by arrangement. UPI / cash / card. No EMI or finance scheme — payment is direct to GM.

Reserve my seat Ask on WhatsApp

Who trains you

A working specialist — not a lecturer

Manigandan G, founder of GM Car A/C Service, has been working on car air conditioning since 2018 and runs a multi-brand AC workshop in Ambattur. The shortcuts and warning signs he teaches took years to learn the hard way — you learn on the real jobs the workshop does every day. Read our reviews on Google.

27 Days, in person 15–20 Seats per batch 2018 Working on car A/C since 14 Books in the technical library

The GM 2-Day Fit Check

Attend Day 1 and Day 2 in full. If by the end of Day 2 you feel this is not for you, tell us before Day 3 begins — full refund, no questions asked.

Plus — miss-a-module repeat: miss a session for a genuine reason? Sit that same module free in the next batch. You do not lose what you paid for.

What is guaranteed is the training, manuals, mentorship and your seat to repeat a module — not a job or income. Anyone promising those is selling you a story.

Joining from outside Chennai

Students travel to us from across North Tamil Nadu and South Andhra Pradesh

The workshop sits near Avadi and Ambattur railway stations — an easy run from Vellore, Katpadi, Tiruttani, Arakkonam, Kanchipuram, Tirupati, Chittoor and the surrounding districts. WhatsApp us for PG and hostel options near the workshop before you commit.

Ambattur Avadi Tiruvallur Arakkonam Kanchipuram Sriperumbudur Chengalpattu Vellore Katpadi Ranipet Tirupati Renigunta Chittoor Palamaner Naidupeta Sullurpeta Outstation? Ask about stay options

Straight answers

Questions before you enrol

How long is the course and what does it cost? 27 days, in person, ₹52,999 all-inclusive — training, manuals, the free ₹9,999 guide, mentorship and certificate. A deposit holds your seat; the balance is payable before Day 1 or split across the 27 days by arrangement. There is no EMI or third-party finance option. Will this get me a job? We do not promise that — be suspicious of anyone who does. You get real skill, a certificate documenting what you covered, and honest guidance on where AC-trained hands are needed. What you do with it is yours — but you start from a real base, not zero. Isn't 15–20 people too crowded to learn hands-on? That is exactly why we cap it there and run it as classroom + live demo + rotational small-group practice with assistant trainers. Every student gets repeated tool-in-hand time across the 27 days. It is a genuine cohort model, not an oversell. I have zero experience. Is it too advanced? Zero experience is who this is built for. Day 1 starts from fundamentals — no prior automotive background assumed. Working technicians and garage owners join the same batches to add AC specialisation. What is the free ₹9,999 guide? The Complete Car AC Servicing Guide, compiled from our 14-book technical library — fundamentals, gauge reading, leak detection, compressor work and EV thermal safety. It is free for anyone who asks on WhatsApp, and included with the course. Is the certificate recognised? It is a GM Car A/C Service completion certificate signed by founder and Managing Director G.M. Manigandan, documenting skills and hours. It is not a government or ITI certificate — we tell you that upfront. Your real proof is the live repairs you will have done. I'm from Tirupati / Vellore / Chittoor. Can I manage 27 days? Yes — students join from across North Tamil Nadu and South Andhra Pradesh. The workshop is near Avadi and Ambattur stations. WhatsApp us for PG and hostel options nearby, with prices, before you commit. What if I miss days, or it's not for me? Miss a session for a genuine reason → repeat that module free in the next batch. Decide it is not for you after Day 1–2 → full refund before Day 3. The schedule is confirmed at enrolment.

Reserve your seat

Enrol in the Complete Car AC Servicing Course

Share your details — we will WhatsApp or call you with the next batch date, timings, and how to hold your seat with a deposit. Mon–Sat, 10:00–20:00.

— or enrol directly —

Enrol on WhatsApp — 84280 00085

27 days from now, you could be servicing car ACs for a living.

Reserve my seat on WhatsApp Call 84280 00085

PS1: Batches are capped at 15–20 so rotational hands-on stays real — once full, the next intake could be weeks away.

PS2: The ₹9,999 Complete Car AC Servicing Guide is free even if you never enrol — ask on WhatsApp.

PS3: No job guarantee, no income guarantee — real training, real vehicles, and a trainer who does this work every day standing next to you.

Before you enrol

Frequently asked questions

How long is the car AC technician course at GM Car A/C Service?

The Complete Car AC Servicing Course runs 27 days, in person, at the GM Car A/C Service workshop in Ambattur, Chennai. Batches hold 15–20 students and the fee is ₹52,999 all-inclusive.

How much does the car AC course cost in Chennai?

₹52,999 for the 27-day course, including the training, manuals, the Complete Car AC Servicing Guide (₹9,999 value), 90-day WhatsApp mentorship and the GM Master Technician Certificate. A deposit holds your seat and the balance can be split across the 27 days by arrangement.

Can I join the car AC course with zero experience?

Yes. Most trainees start from zero. Day 1 begins from fundamentals with no prior automotive background assumed; the course is also taken by working technicians adding AC specialisation and by garage owners training staff.

Is the certificate a government certificate?

No. It is a GM Master Technician Certificate — a completion certificate signed by founder and Managing Director G.M. Manigandan documenting what you covered. It is not a government or ITI certificate, and the course never claims otherwise.

Does the course guarantee a job or income?

No, and any institute that promises one should be treated with suspicion. What is guaranteed: 27 days of hands-on training on live vehicles, manuals, mentorship, and the right to repeat a missed module in a later batch.

I am from Tirupati, Vellore or Chittoor — can I attend from outstation?

Yes. Students join from across North Tamil Nadu and South Andhra Pradesh — Tirupati, Chittoor, Vellore, Ranipet, Kanchipuram and Tiruvallur districts. The workshop is near Avadi and Ambattur railway stations; WhatsApp us for PG and hostel options near the workshop.

What is the free Complete Car AC Servicing Guide?

A ₹9,999-value guide compiled from GM's 14-book technical library, covering car AC servicing end to end. It is free for anyone who enquires on WhatsApp — no purchase needed — and included with the course.

What if the course is not right for me after it starts?

Attend Day 1 and Day 2 in full. If you decide it is not for you, tell us before Day 3 begins for a full refund. Miss a module for a genuine reason and you can repeat it free in the next batch.

Enrol

Ask about the next batch

Seats are limited per batch. Tell GM where you are starting from and when you can travel, and the workshop will confirm what is open.