CECVT Home Appliances Service Training Institute

Call Directions Website Contact the school

CECVT Home Appliances Service Training Institute CECVT | Home Appliances Service
Training Institute

24/09/2026

AC Gas Slowly Reducing After Service? Check the Service Port Cap!

Today’s Topic: Service Port Cap & Refrigerant Leakage Diagnosis

A common customer complaint is, “The AC cools properly after gas charging, but after a few weeks the cooling becomes weak again.” Even after checking the flare joints and valve core, technicians should inspect the service port cap and sealing surface.

At CECVT – Chennai Excellent Center For Vocational Training, students learn practical AC troubleshooting using real units and actual field problems.

🔍 Why Can the Service Port Leak?

The service port cap provides an additional seal after pressure checking or refrigerant charging. A damaged seal, loose cap, dirty thread or improper tightening can allow refrigerant to escape slowly.

⚠️ Common Symptoms

❌ Cooling reduces gradually
❌ Refrigerant pressure becomes low
❌ Oil mark near service port
❌ Gas needs repeated charging
❌ Leak appears after servicing

🎯 What You Will Learn

✅ Service port inspection
✅ Leak detection method
✅ Soap solution testing
✅ Valve core checking
✅ Cap seal inspection
✅ Correct tightening procedure

🛠️ 100% Hands-On Practical Training

Students practice manifold gauge usage, leak testing, refrigerant diagnosis and real AC service procedures using professional tools.

📚 Courses Available

✔ AC Service & Repair Course
✔ Refrigerator Service Course
✔ Washing Machine Service Course
✔ Inverter AC PCB Repair Course
✔ AC PCB Repair Course

📞 Call / WhatsApp: +91 9940205213

📺 YouTube:
https://www.youtube.com/

📸 Instagram:
https://www.instagram.com/mechanicsankarchennai/

🌐 Website:
https://cecvtappliancesrepairingcourse.com/

23/09/2026

AC Cooling Is Good but Room Temperature Rises Quickly? Check for Air Leakage!

Today’s Topic: Room Air Leakage & Cooling Loss Diagnosis

A common customer complaint is, “The AC cools the room, but the temperature rises quickly and the compressor keeps running for long periods.” If the AC readings are normal, technicians should also inspect the room for outside-air leakage.

At CECVT – Chennai Excellent Center For Vocational Training, students learn practical AC troubleshooting using real units and actual field conditions.

🔍 How Does Air Leakage Affect Cooling?

Gaps around doors, windows, exhaust openings or unsealed wall holes can continuously allow hot outside air into the room.

This increases the cooling load and makes the AC work longer even when the refrigeration system is operating correctly.

⚠️ Common Symptoms

❌ Room takes longer to cool
❌ Temperature rises quickly
❌ Compressor runs continuously
❌ Cooling is better at night
❌ AC readings appear normal

🎯 What You Will Learn

✅ Room leakage inspection
✅ Door & window gap checking
✅ Temperature measurement
✅ Cooling load diagnosis
✅ AC performance testing
✅ System fault vs room fault identification

🛠️ 100% Hands-On Practical Training

Students practice temperature checking, cooling performance testing and real field diagnosis using professional AC service methods.

📚 Courses Available

✔ AC Service & Repair Course
✔ Refrigerator Service Course
✔ Washing Machine Service Course
✔ Inverter AC PCB Repair Course
✔ AC PCB Repair Course

📞 Call / WhatsApp: +91 9940205213

📺 YouTube:
https://www.youtube.com/

📸 Instagram:
https://www.instagram.com/mechanicsankarchennai/

🌐 Website:
https://cecvtappliancesrepairingcourse.com/

23/09/2026

Water Entering Around the AC During Rain? Check the Wall Opening Seal!

Today’s Topic: AC Wall Hole Sealing & Rainwater Entry Diagnosis

A common customer complaint is, “The AC is working normally, but during heavy rain, water enters the room near the indoor unit.” This may not be an AC drain problem. The copper pipe wall opening and outdoor sealing should be inspected.

At CECVT – Chennai Excellent Center For Vocational Training, students learn practical AC installation and troubleshooting using real units and actual field problems.

🔍 Why Does Rainwater Enter?

The wall opening carries copper pipes, drain hose and electrical cable. If the opening is not sealed correctly or the piping angle allows water to travel toward the room, rainwater can enter around the pipe bundle.

⚠️ Common Symptoms

❌ Leakage happens only during rain
❌ Wall becomes wet near indoor unit
❌ Water enters around copper pipes
❌ Damp marks appear on the wall
❌ Drain line works normally

🎯 What You Will Learn

✅ Wall opening inspection
✅ Correct pipe bundle routing
✅ Outdoor sealing method
✅ Drain pipe position checking
✅ Rainwater entry diagnosis
✅ Proper installation finishing

🛠️ 100% Hands-On Practical Training

Students practice AC installation, copper piping, drain routing, wall sealing and real field troubleshooting using professional tools.

📚 Courses Available

✔ AC Service & Repair Course
✔ Refrigerator Service Course
✔ Washing Machine Service Course
✔ Inverter AC PCB Repair Course
✔ AC PCB Repair Course

📞 Call / WhatsApp: +91 9940205213

📺 YouTube:
https://www.youtube.com/

📸 Instagram:
https://www.instagram.com/mechanicsankarchennai/

🌐 Website:
https://cecvtappliancesrepairingcourse.com/

22/09/2026

AC Is Working Properly but Room Still Takes Too Long to Cool? Check the Room Heat Load!

Today’s Topic: Room Heat Load & AC Capacity Diagnosis

A common customer complaint is, “The AC is running continuously and all readings look normal, but the room takes a long time to become cool.” Sometimes the problem is not a gas or compressor fault. The room heat load may be higher than the AC capacity.

At CECVT – Chennai Excellent Center For Vocational Training, students learn practical AC troubleshooting using real units and actual field conditions.

🔍 What Increases Room Heat Load?

Large windows, direct sunlight, poor roof insulation, frequently opened doors, more people, computers and other heat-producing equipment can increase the cooling requirement.

Technicians should consider room conditions along with AC performance readings.

⚠️ Common Symptoms

❌ AC runs continuously
❌ Room cools very slowly
❌ Outlet air temperature is normal
❌ Cooling improves at night
❌ AC capacity is insufficient for the room

🎯 What You Will Learn

✅ Room size calculation
✅ Heat load basics
✅ AC tonnage selection
✅ Supply air temperature checking
✅ Room condition inspection
✅ Cooling performance diagnosis

🛠️ 100% Hands-On Practical Training

Students practice temperature measurement, AC capacity checking and real field cooling diagnosis using professional service methods.

📚 Courses Available

✔ AC Service & Repair Course
✔ Refrigerator Service Course
✔ Washing Machine Service Course
✔ Inverter AC PCB Repair Course
✔ AC PCB Repair Course

📞 Call / WhatsApp: +91 9940205213

📺 YouTube:
https://www.youtube.com/

📸 Instagram:
https://www.instagram.com/mechanicsankarchennai/

🌐 Website:
https://cecvtappliancesrepairingcourse.com/

22/09/2026

AC Water Leaking After New Installation? Check the Indoor Unit Level!

Today’s Topic: Indoor Unit Level & Drainage Installation Diagnosis

A common customer complaint is, “The AC is newly installed and cooling properly, but water starts leaking from one side of the indoor unit.” Before opening the complete unit, technicians should check whether the indoor unit is mounted at the correct level.

At CECVT – Chennai Excellent Center For Vocational Training, students learn practical AC installation and troubleshooting using real units and actual field problems.

🔍 Why Does Indoor Unit Level Matter?

Condensate water must flow correctly from the drain tray into the drain hose. If the indoor unit is tilted in the wrong direction, water can collect on one side and overflow into the room.

⚠️ Common Symptoms

❌ Water leaking from one side
❌ Drain tray overflowing
❌ Water remains inside the unit
❌ Leakage starts after some time
❌ Newly installed AC has water leakage

🎯 What You Will Learn

✅ Indoor unit level checking
✅ Wall bracket installation
✅ Drain tray inspection
✅ Drain outlet checking
✅ Spirit level usage
✅ Water flow testing

🛠️ 100% Hands-On Practical Training

Students practice indoor unit mounting, drain installation, water flow testing and real AC installation fault diagnosis using professional tools.

📚 Courses Available

✔ AC Service & Repair Course
✔ Refrigerator Service Course
✔ Washing Machine Service Course
✔ Inverter AC PCB Repair Course
✔ AC PCB Repair Course

📞 Call / WhatsApp: +91 9940205213

📺 YouTube:
https://www.youtube.com/

📸 Instagram:
https://www.instagram.com/mechanicsankarchennai/

🌐 Website:
https://cecvtappliancesrepairingcourse.com/

21/09/2026

AC Is Running but You’re Not Sure Whether Cooling Is Correct? Check the Temperature Split!

Today’s Topic: Return Air & Supply Air Temperature Difference Diagnosis

A common field question is, “The AC is running continuously, but how can we confirm whether the indoor unit is actually producing proper cooling?” One useful check is the temperature difference between return air and supply air.

At CECVT – Chennai Excellent Center For Vocational Training, students learn practical AC troubleshooting using real units and professional service tools.

🔍 Why Check Temperature Difference?

Technicians can measure the air temperature entering the indoor unit and compare it with the air coming out.

The reading must be interpreted together with airflow, room conditions, coil condition and the AC manufacturer’s specifications—not as a single fixed number for every system.

⚠️ Common Problems to Investigate

❌ Outlet air not cold enough
❌ Room takes too long to cool
❌ AC runs continuously
❌ Temperature difference is abnormal
❌ Cooling performance is inconsistent

🎯 What You Will Learn

✅ Return air temperature testing
✅ Supply air temperature testing
✅ Temperature split calculation
✅ Airflow checking
✅ Evaporator performance diagnosis
✅ Complete cooling analysis

🛠️ 100% Hands-On Practical Training

Students practice digital thermometer testing, airflow inspection and real AC cooling diagnosis using professional service tools.

📚 Courses Available

✔ AC Service & Repair Course
✔ Refrigerator Service Course
✔ Washing Machine Service Course
✔ Inverter AC PCB Repair Course
✔ AC PCB Repair Course

📞 Call / WhatsApp: +91 9940205213

📺 YouTube:
https://www.youtube.com/

📸 Instagram:
https://www.instagram.com/mechanicsankarchennai/

🌐 Website:
https://cecvtappliancesrepairingcourse.com/

21/09/2026

AC Installed with a Long Copper Pipe? Check the Refrigerant Charge Correctly!

Today’s Topic: Copper Pipe Length & Refrigerant Charge Adjustment

A common field complaint is, “The AC was cooling properly before shifting, but after installing it with a longer copper pipe, cooling became weak.” Pipe length and refrigerant requirement should be checked according to the AC specification.

At CECVT – Chennai Excellent Center For Vocational Training, students learn practical AC installation and troubleshooting using real units.

🔍 Why Does Copper Pipe Length Matter?

Every AC model has an approved piping length and refrigerant charge. When the installation exceeds the manufacturer’s standard pre-charge length, some models may require additional refrigerant.

Technicians should never add gas only by guesswork.

⚠️ Common Symptoms

❌ Weak cooling after installation
❌ Abnormal pressure readings
❌ Compressor runs for long periods
❌ Pipe temperature is abnormal
❌ Cooling performance becomes poor

🎯 What You Will Learn

✅ Copper pipe length measurement
✅ Manufacturer specification checking
✅ Correct vacuuming procedure
✅ Refrigerant charging method
✅ Pressure & temperature checking
✅ Compressor current measurement

🛠️ 100% Hands-On Practical Training

Students practice copper piping, vacuuming, refrigerant charging, manifold gauge testing and complete AC installation using professional tools.

📚 Courses Available

✔ AC Service & Repair Course
✔ Refrigerator Service Course
✔ Washing Machine Service Course
✔ Inverter AC PCB Repair Course
✔ AC PCB Repair Course

📞 Call / WhatsApp: +91 9940205213

📺 YouTube:
https://www.youtube.com/

📸 Instagram:
https://www.instagram.com/mechanicsankarchennai/

🌐 Website:
https://cecvtappliancesrepairingcourse.com/

20/09/2026

AC Gas Pressure Looks Abnormal After Installation? Check for a Kinked Copper Pipe!

Today’s Topic: Copper Pipe Kink & Refrigerant Flow Restriction

A common field complaint is, “The AC was cooling properly before installation, but after shifting or reinstalling it, cooling became weak.” One possible reason is a copper pipe that has been bent too sharply or kinked.

At CECVT – Chennai Excellent Center For Vocational Training, students learn practical AC troubleshooting using real units and actual field problems.

🔍 Why Does a Kinked Pipe Affect Cooling?

A damaged or flattened copper pipe can restrict refrigerant flow between the indoor and outdoor units.

Instead of immediately adding refrigerant, technicians should inspect the complete piping route and take pressure, temperature and current readings.

⚠️ Common Symptoms

❌ Weak cooling after installation
❌ Abnormal refrigerant pressure
❌ Uneven pipe temperature
❌ Compressor running continuously
❌ Visible bend or flattened copper pipe

🎯 What You Will Learn

✅ Copper pipe inspection
✅ Correct pipe bending method
✅ Refrigerant pressure testing
✅ Pipe temperature checking
✅ Restriction fault diagnosis
✅ Installation troubleshooting

🛠️ 100% Hands-On Practical Training

Students practice copper piping, installation, pressure checking and real AC fault diagnosis using professional service tools.

📚 Courses Available

✔ AC Service & Repair Course
✔ Refrigerator Service Course
✔ Washing Machine Service Course
✔ Inverter AC PCB Repair Course
✔ AC PCB Repair Course

📞 Call / WhatsApp: +91 9940205213

📺 YouTube:
https://www.youtube.com/

📸 Instagram:
https://www.instagram.com/mechanicsankarchennai/

🌐 Website:
https://cecvtappliancesrepairingcourse.com/

19/09/2026

AC Set at 19°C but Cooling Is Still Weak? Check the Actual Cooling Performance!

Today’s Topic: 19°C Setting & AC Cooling Performance Diagnosis

A common customer complaint is, “The remote is set to 19°C, but the room is not becoming cold.” Lowering the set temperature alone cannot correct an AC system fault.

At CECVT – Chennai Excellent Center For Vocational Training, students learn practical AC troubleshooting using real units and actual customer complaints.

🔍 What Should a Technician Check?

First measure the return-air and supply-air temperatures. Then check indoor airflow, evaporator and condenser condition, refrigerant pressure and compressor current.

These readings help identify whether the problem is airflow, refrigerant circulation, heat transfer or compressor performance.

⚠️ Common Symptoms

❌ Room stays warm at 19°C setting
❌ AC runs for a long time
❌ Outlet air is not cold enough
❌ Cooling is slow
❌ Compressor runs continuously

🎯 What You Will Learn

✅ Supply & return air testing
✅ Temperature difference checking
✅ Refrigerant pressure diagnosis
✅ Compressor current testing
✅ Indoor/outdoor coil inspection
✅ Complete cooling fault diagnosis

🛠️ 100% Hands-On Practical Training

Students practice temperature measurement, manifold gauge testing, clamp meter checking and real AC troubleshooting using professional service tools.

📚 Courses Available

✔ AC Service & Repair Course
✔ Refrigerator Service Course
✔ Washing Machine Service Course
✔ Inverter AC PCB Repair Course
✔ AC PCB Repair Course

📞 Call / WhatsApp: +91 9940205213

📺 YouTube:
https://www.youtube.com/

📸 Instagram:
https://www.instagram.com/mechanicsankarchennai/

🌐 Website:
https://cecvtappliancesrepairingcourse.com/

18/09/2026

AC Water Leaking Only After Running for Some Time? Check the Drain Hose Slope!

Today’s Topic: Drain Hose Improper Slope & Air Lock Diagnosis

A common customer complaint is, “The AC works normally at first, but after some time water starts leaking from the indoor unit.” Even when the drain pipe is not blocked, incorrect drain hose installation can cause this problem.

At CECVT – Chennai Excellent Center For Vocational Training, students learn practical AC troubleshooting using real units and actual customer complaints.

🔍 What Should a Technician Check?

The drain hose should have a proper downward slope so condensate water can flow freely.

A raised section, bend, sagging hose or air lock can slow the water flow. Water may collect inside the drain tray and eventually overflow from the indoor unit.

⚠️ Common Symptoms

❌ Water leaking after long operation
❌ Drain water flowing slowly
❌ Water collecting in drain tray
❌ Intermittent indoor leakage
❌ Gurgling sound from drain line

🎯 What You Will Learn

✅ Drain hose slope checking
✅ Air lock diagnosis
✅ Drain flow testing
✅ Indoor unit level inspection
✅ Drain hose installation
✅ Water leakage troubleshooting

🛠️ 100% Hands-On Practical Training

Students practice AC installation, drain line checking, servicing and real field fault diagnosis using professional tools.

📚 Courses Available

✔ AC Service & Repair Course
✔ Refrigerator Service Course
✔ Washing Machine Service Course
✔ Inverter AC PCB Repair Course
✔ AC PCB Repair Course

📞 Call / WhatsApp: +91 9940205213

📺 YouTube:
https://www.youtube.com/

📸 Instagram:
https://www.instagram.com/mechanicsankarchennai/

🌐 Website:
https://cecvtappliancesrepairingcourse.com/

Address

No; 4, Rajiv Gandhi Street, Gandhi Nagar, Selaiyur
Chennai
600073

Telephone

+918122878042

Website

Alerts

Be the first to know and let us send you an email when CECVT Home Appliances Service Training Institute posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The School

Send a message to CECVT Home Appliances Service Training Institute:

Shortcuts

Share

Category