Key takeaways

• Plans include two or three comprehensive preventive service visits a year.
• Visits cover cleaning, cooling, storage health, updates, security, networks, printers and CCTV.
• Dust and heat are major risks in Sri Lanka's climate.
• Prevention costs far less than emergency repairs.
• Each visit ends with findings and recommendations.

Introduction

Most IT failures do not happen without warning. A fan slowly clogs with dust until the processor overheats. A hard drive develops errors for weeks before it fails. Updates are postponed until a security hole is exploited. A loose network cable works intermittently until it stops altogether. Preventive maintenance catches these problems early, before they stop your business.

Every Raiden (Pvt) Ltd Annual Maintenance Contract includes comprehensive service visits: two a year on Essential Care, and three a year on ProSecure Plan and Enterprise Shield. As Raiden’s AMC booklet explains, an AMC offers regular preventive maintenance, software updates, virus protection and expert support, helping businesses avoid unexpected breakdowns and repair expenses, reduce downtime, improve performance and extend the lifespan of hardware.

This article explains what preventive maintenance is, why it matters especially in Sri Lanka’s climate, what Raiden engineers check during a service visit, and how businesses can keep their IT healthy between visits.

What is preventive maintenance?

Preventive maintenance is planned work carried out before problems occur. Instead of waiting for equipment to fail, engineers inspect, clean, update and test it regularly. The aim is to:

• Prevent failures by fixing small issues early.
• Maintain performance, so computers stay fast and stable.
• Improve security by keeping software up to date.
• Extend hardware life, protecting your investment.
• Plan replacements, by spotting equipment nearing the end of its life.

The alternative, reactive maintenance, means fixing things only when they break. It is usually more expensive, more disruptive and more stressful.

Why prevention matters in Sri Lanka

Sri Lanka’s tropical climate is hard on computers:

• Heat makes components work harder and shortens their life.
• Humidity can cause corrosion on contacts and connectors.
• Dust, especially in offices near roads, factories and warehouses, clogs fans and heat sinks.
• Power cuts and fluctuations stress power supplies and can corrupt data.
• Insects sometimes nest inside equipment, causing short circuits.

Regular cleaning, cooling checks and power protection are therefore especially important for Sri Lankan businesses.

What happens during a comprehensive service visit

Each visit is tailored to your equipment, but typically covers the following areas.

1. Physical inspection and cleaning

• Opening desktops (where appropriate) and removing dust from fans, heat sinks, power supplies and vents with compressed air and anti-static tools.
• Cleaning laptop vents and fans, keyboards and screens.
• Checking for loose cables, damaged connectors and worn power cords.
• Inspecting for swollen laptop batteries, which can be a safety risk.

2. Cooling and temperature checks

The Raiden booklet lists overheating due to dust or fan failure among the most common on-site issues. Engineers check:

• That all fans spin correctly and quietly.
• Processor and graphics temperatures under normal load.
• Thermal paste condition on older machines, where overheating persists.
• That equipment is placed with enough airflow, away from walls, windows and direct sunlight.

3. Storage health

• Checking hard drive and SSD health with diagnostic tools, and looking for warning signs of failure.
• Checking free space, because full drives slow computers down and can cause updates to fail.
• Recommending replacement of drives showing errors, before they fail and lose data.

4. Memory and system stability

• Reviewing system logs for crashes and errors.
• Testing memory where crashes suggest faulty RAM.
• Checking that start-up programs are not slowing the computer.

5. Power protection

• Testing UPS units and batteries.
• Checking that critical equipment, such as servers, network devices and key PCs, is connected to a UPS.
• Looking for signs of a failing power supply, such as random restarts.

6. Software updates

• Installing operating system updates and security patches.
• Updating drivers and firmware where needed.
• Updating key applications.
• Checking that genuine licences are in place and active.

7. Virus and security checks

The booklet highlights virus protection as part of AMC maintenance. Engineers:

• Confirm antivirus software is installed, licensed, updated and running.
• Run scans where needed.
• Check firewall settings.
• Review user accounts and remove accounts that are no longer needed.
• Advise on password practices and security risks.

8. Network checks

• Inspecting routers, switches, patch panels and cabling.
• Checking Wi-Fi coverage and performance.
• Updating router and firewall firmware.
• Identifying ageing or overloaded network equipment.

9. Printers and peripherals

• Cleaning printers and checking rollers and paper paths.
• Updating printer drivers.
• Checking scanners, monitors, keyboards, mice and docking stations.

10. Servers and backups

• Checking server health, storage and logs.
• Confirming that backups are running and can be restored.
• Reviewing user permissions on shared folders.

11. CCTV

• Checking that recorders are recording and storing footage for the required period.
• Checking camera connections and images.
• Confirming storage health on recorders.

12. Report and recommendations

At the end of the visit, the engineer summarises what was checked, what was fixed and what is recommended, such as replacing an ageing drive, upgrading memory or adding a UPS.

A preventive maintenance checklist

How often should maintenance happen?

Raiden’s plans match these needs: two comprehensive services a year on Essential Care, and three on ProSecure Plan and Enterprise Shield.

The cost of prevention versus repair

Preventive maintenance turns expensive emergencies into small, planned jobs.

What engineers look for in the workplace

Preventive maintenance also looks at the environment around the equipment. Engineers often notice and advise on:

• Overloaded power strips and daisy-chained extension cables, which are a fire risk.
• Cables across walkways, which cause trips and damaged connectors.
• Equipment on the floor, where it collects dust and is at risk from water and cleaning.
• Computers in direct sunlight or next to windows, which overheat.
• Blocked vents on desks crowded with papers.
• Unsecured equipment in public areas, which may be stolen or tampered with.

Small changes, such as a cable tidy, a shelf for a PC or moving a printer away from a window, often make a big difference to reliability and safety.

Keeping IT healthy between visits

Staff can help keep equipment healthy:

1. Shut down or restart regularly, so updates install.
2. Keep vents clear: do not block laptop vents with soft surfaces or papers.
3. Avoid food and drinks near keyboards.
4. Use the UPS for desktops, servers and network devices.
5. Save files to the right place, such as shared drives or cloud storage that are backed up.
6. Report unusual noises, heat or slowness to the helpdesk.
7. Be careful with email: do not open suspicious attachments or links.
8. Do not install unapproved software.

Signs that equipment needs attention

• Fans that are loud or constantly running at full speed.
• Computers that shut down or restart unexpectedly.
• Slow start-up and frequent freezing.
• Clicking or grinding noises from hard drives.
• Laptop batteries that swell or drain quickly.
• Flickering monitors or display lines.
• Printers that jam frequently.
• Intermittent network connections.

If you notice any of these, contact the Raiden helpdesk. You do not need to wait for the next scheduled visit.

Laptop care for travelling and hybrid staff

Laptops face more risks than desktops: they are carried, dropped, used on beds and sofas, and charged with different adapters. Simple habits extend their life:

• Carry laptops in a padded bag, and never with the lid open.
• Use them on hard, flat surfaces so the vents can breathe.
• Use the original or an approved charger.
• Avoid leaving them in hot cars or direct sunlight.
• Shut down fully at least once a week so updates complete.
• Report swollen batteries, cracked hinges or loose charging ports promptly.

During service visits, engineers check laptop batteries, hinges, ports and chargers, and recommend repairs before small problems become failures.

Planning service visits

To make the most of each visit:

• Schedule visits at quiet times, such as early mornings or at month-end after deadlines.
• Tell staff in advance, so they save their work and allow access.
• Prepare a list of known issues or questions.
• Allow time for updates and restarts.
• Review the report and approve recommended actions.

Maintenance records and asset management

Every service visit should leave a record. Over time, these records build a valuable history of your IT equipment: when each device was bought, what has been repaired or replaced, how its health has changed and when it is likely to need replacement. Your dedicated engineer can use this history to:

• Forecast replacements and spread costs across budget years.
• Identify unreliable models that cause repeated problems.
• Prove compliance with internal policies or customer requirements for IT security.
• Support warranty claims, by showing when faults first appeared.

Good records also make audits, insurance claims and office moves much simpler.

Maintenance for specific equipment

Seasonal maintenance in Sri Lanka

Sri Lanka’s seasons bring different risks for IT equipment:

Planning service visits around these seasons, for example before the monsoon arrives, helps prevent avoidable failures.

Looking after a server room or network cabinet

Servers and network equipment need extra care, because a single failure can affect everyone:

• Keep it cool: a dedicated air-conditioner, with the room kept below the temperature recommended by the equipment manufacturer.
• Keep it clean: no storage boxes, paper or cleaning materials in the room.
• Control access: only authorised staff and engineers should enter.
• Protect the power: use a UPS sized for the load, and test it regularly.
• Label everything: clearly labelled cables and ports speed up troubleshooting.
• Monitor it: check temperatures, storage alerts and backup status regularly.

Software and licence hygiene

Preventive maintenance is not only physical. Unused programs, expired trial software and unlicensed applications slow computers down and create security risks. During service visits, engineers can identify software that should be removed or updated, check that licences are genuine and active, and recommend replacements where needed. Genuine licences bought from Raiden.lk also qualify for a one-year software warranty extension under every AMC plan (see Extended Warranties, Genuine Software Licences and Supply Discounts with a Raiden AMC).

Preventive maintenance and hardware life

With regular care, business computers often stay productive for several years. Preventive maintenance, combined with timely upgrades such as adding memory or replacing a hard drive with an SSD, can extend useful life further and delay the cost of replacement. When replacement does become necessary, Raiden AMC clients benefit from special discounts on new supply orders, and the dedicated engineer can recommend the right new hardware (see the Hardware articles, starting with Computer Processors (CPUs) in 2026: AI PCs, NPUs, Hybrid Cores and How to Choose the Right CPU).

An example in practice

The following example is illustrative and does not describe a real client.

A garment factory office near an industrial estate suffered frequent PC shutdowns during the hot months. Staff assumed the computers were simply old.

During the first Raiden service visit under a ProSecure Plan, the engineer found heavy dust in fans and heat sinks, two failing hard drives and a UPS with a dead battery. The PCs were cleaned, the drives replaced and the UPS battery renewed. The engineer also recommended moving the server away from a sunny window. Shutdowns stopped, and the factory now relies on three scheduled service visits a year to keep its equipment clean and healthy.

Frequently asked questions

How many preventive service visits are included?

Two comprehensive services a year on Essential Care, and three a year on ProSecure Plan and Enterprise Shield.

What does a service visit include?

Cleaning, cooling checks, storage health checks, updates, virus protection checks, network, printer, backup and CCTV checks, plus a report with recommendations.

Will maintenance disrupt our work?

Visits are scheduled at convenient times, and engineers work device by device to minimise disruption.

Is preventive maintenance worth it for new computers?

Yes. New computers still collect dust, need updates and benefit from security checks. Starting maintenance early keeps them performing well for longer, and the records created from the first visit help with future warranty claims and replacement planning.

Why is dust such a problem?

Dust blocks fans and heat sinks, causing overheating, crashes and shorter hardware life, especially in Sri Lanka’s warm climate.

Can I request extra cleaning for a dusty site?

Yes. Raiden AMCs are customised, and extra maintenance can be agreed for dusty or demanding environments.

Do you also maintain printers, CCTV and network equipment?

Yes. Raiden AMCs cover PCs, laptops, servers, switches, routers, printers and CCTV devices, among other IT peripherals, and service visits can include all of them.

Will the engineer tell us when equipment should be replaced?

Yes. Each visit ends with a summary of findings and recommendations, including devices that are ageing, unreliable or no longer worth repairing, so you can plan replacements in advance.

What if a problem appears between visits?

Contact the helpdesk at any time during your plan’s support hours. You do not need to wait for the next visit.

Conclusion

Preventive maintenance is the foundation of reliable IT. By cleaning, checking, updating and testing equipment regularly, Raiden engineers find and fix small problems before they become expensive failures, especially in Sri Lanka’s hot, humid and dusty conditions.

With two or three comprehensive service visits a year, depending on the plan, every Raiden AMC client benefits from fewer breakdowns, better performance, stronger security and longer-lasting hardware.

Want your IT checked, cleaned and updated before problems start? Contact Raiden (Pvt) Ltd on +94 70 724 9800 or [email protected].

Schedule preventive maintenance

Related reading

• What Is an IT Annual Maintenance Contract (AMC)? A Complete Guide for Businesses
• Essential Care, ProSecure or Enterprise Shield? Choosing the Right Raiden AMC Plan
• IT Support Response Times Explained: 24/7 Helpdesk, 4-Hour On-Site and Next-Day Support
• Your Dedicated IT Engineer: Unlimited Helpdesk, Remote and On-Site Support with a Raiden AMC
• Temporary Equipment, Off-Site Repair and Pickup: Keeping Your Business Running During IT Repairs
• Data Backup and Recovery for Businesses: Protecting Your Data Under a Raiden AMC
• Extended Warranties, Genuine Software Licences and Supply Discounts with a Raiden AMC
• How Much Will Managed IT Support Cost? 12 Questions to Ask Before You Sign an IT AMC
• Computer Processors (CPUs) in 2026: AI PCs, NPUs, Hybrid Cores and How to Choose the Right CPU

Sources

• Raiden (Pvt) Ltd, "Annual Maintenance Contract" booklet (value of an AMC, service visits and on-site issues): https://raiden.lk/amc
• Raiden (Pvt) Ltd company profile: https://www.raiden.lk