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Aircond Service Brands
Yes — KL Renovator services all National aircond models across KL & Selangor. KL Renovator services all legacy National air conditioner models across KL and Selangor. Our experienced technicians provide careful chemical wash, gas top-up (R22), wiring repairs and spare part sourcing for older wall-mounted and window units.
Model: National CS/CU Series, National Eolia Series, National Window Units.
National is a legacy brand (now part of Panasonic globally), and most National units in service in Malaysia today are over 10 years old. There are no current National aircond models being sold in Malaysia — any National unit you have is a legacy unit. The main service consideration for National units is that National-branded parts are discontinued, but Panasonic-compatible parts work in most cases. KL Renovator maintains stock of common Panasonic-compatible parts (capacitors, fan motors, sensors) and uses universal replacements where appropriate. For National units approaching end-of-life (15+ years), we always discuss repair-vs-replace options honestly with the customer.
On a National wall split that runs but does not cool, the most common cause in 15+ year old units is a refrigerant leak. R22 leaks typically occur at the flare connections (where copper pipes join) due to age-related metal fatigue. We test for leaks with electronic leak detector, repair the flare connection (re-flare + new flare nut, RM 50–80 per joint), vacuum, and recharge with R22. This typically restores cooling for several more years.
A loud rattling on a National window unit is almost always a loose fan blade hitting the housing, or a worn compressor mount. The fan blade fix is simple: open the unit, tighten the fan blade set screw, and balance the blade if bent. The compressor mount fix is more involved: replace the rubber mount springs (RM 30–50 in parts). For National window units over 20 years old with compressor problems, replacement is usually more cost-effective than major repair.
A National unit that trips the house MCB at start-up is usually a dead short in the compressor or a stuck fan motor. Test the compressor windings with a multimeter — a reading below 0.5 ohms between any two terminals indicates a short. For National units over 15 years old with a shorted compressor, replacement (RM 700–1,000) is often more cost-effective than repair, especially if the unit uses R22 (which is now expensive). We will always quote both options.
KL Renovator is an independent HVAC service company, not an official agent or authorised service centre of National. We service, repair and install National units using genuine or OEM-equivalent parts (capacitors, PCB boards, gas, drain pumps) from trusted Malaysian suppliers — never counterfeit or unverified parts. If yourNational unit is still under manufacturer warranty, we will tell you first whether the repair may affect that warranty, so you can choose to go to the official National service centre yourself if needed. Our job is honest, transparent service — not selling a unit you do not need.
Real Work · Not Stock Photos
Real KL Renovator work on National and other units — every photo is our own team on site, not a stock image. Chemical wash, gas top-up, repairs and installation across KL & Selangor.



Published pricing · comparison table
Use this table as a starting point before booking in National. These are KL Renovator's published prices; the technician confirms the final scope on-site before work starts.
Aircond service for National means a technician checks cooling performance, airflow, drainage, electrical safety and visible wear before recommending basic cleaning, chemical wash, troubleshooting or replacement. The goal is to solve the actual fault without selling unnecessary work.
| Service option | Published price | Best for |
|---|---|---|
| New wall-mounted installation | RM 199 | For National: replacing an old unit or fitting a new room |
| Basic service / cleaning | RM 99 | For National: routine maintenance when cooling is still acceptable |
| Pressure chemical wash | RM 120 | For National: weak airflow, odour, dusty blower wheel or indoor coil grime |
| Chemical overhaul | RM 420 | For National: severe blockage or water leaking after normal servicing |
| Diagnostic / troubleshooting | RM 88 | For National: unknown fault, tripping, blinking light or noisy outdoor unit |
Gas top-up is charged by refrigerant: R22 RM 2.50 / PSI, R410A RM 3.00 / PSI, R32 RM 3.00 / PSI. Extra copper pipe, wiring or access work follows the published material list.
Expert review
Last reviewed: 7 September 2026
This National page was checked by KL Renovator's licensed and certified aircond technicians against the current service scope, warranty wording and published price list. The review focuses on realistic dispatch, safe electrical practice, transparent quotations and when a repair is more sensible than replacement.
About the KL Renovator technician team →Relevant public references used when we discuss efficiency labels, electricity use, product compliance or work-at-height safety:
National basic servicing starts from RM 99, chemical wash from RM 120, chemical overhaul from RM 420, R22 gas top-up from RM 2.50/PSI.
While National branded parts are discontinued, many universal components (capacitors, fan motors, sensors) and Panasonic compatible parts work perfectly. KL Renovator assesses your unit first.
National is the original brand name of what became Panasonic. The company was renamed to Panasonic globally in 2008, but the National brand name is still used in some Asian markets and on older units in Malaysia. Many National units from 1990–2008 are mechanically and electrically identical to equivalent Panasonic models of the same era. This means that Panasonic-compatible parts (capacitors, fan motors, sensors, even some PCBs) work in National units, which is fortunate because National-branded parts are now discontinued.
For National units over 15 years old, the decision between repair and replace depends on the specific fault: (1) Capacitor, contactor, drain pipe, drain pan, or sensor faults — definitely worth repairing (RM 50–300 total). (2) Fan motor bearing or full motor failure — worth repairing (RM 200–450 total). (3) Compressor failure — depends on the unit's size: 1HP/1.5HP units can be replaced for RM 700–1,000 which is borderline; 2HP+ units are usually better to replace. (4) PCB failure — depends on availability of Panasonic-compatible PCB; we assess this on a case-by-case basis. We will always give you both options and let you decide.
All National wall split units sold in Malaysia before 2010 use R22 refrigerant. R22 has been phased out globally due to ozone-depletion concerns and is increasingly expensive (currently RM 2.50 per PSI). For older National units, we can still top up R22 but we always discuss the long-term cost — if your National unit needs R22 top-up more than once every 2 years, the underlying leak should be located and repaired, or the unit replaced. We carry R22 in our service van for older unit servicing.
Yes — we regularly replace old National units with new R32 inverter models from Daikin, Panasonic, Mitsubishi, or any other brand. The standard replacement installation (from RM 199) includes removal of the old National unit adjustment for the new unit (if needed), copper pipe replacement, vacuum, gas pressure check and commissioning. We dispose of the old National unit properly. Many customers choose to upgrade to a new R32 inverter unit because the electricity savings typically pay back the replacement cost in 3–4 years.
A standard National wall-mounted chemical wash takes 45-60 minutes. Ceiling cassette units or heavily neglected systems may require up to 90 minutes for a thorough deep clean.
Yes. We use genuine or high-quality OEM-equivalent components (capacitors, sensors, PCB boards) for all National units to ensure compatibility and system longevity.
KL Renovator's local National team is highly rated for transparency and speed. We provide SSM-registered service with a 1-month workmanship warranty for every visit.
We operate from 9 AM to 6 PM daily in National. Most emergency calls for leaking or breakdown are assigned a technician within 30-60 minutes.
Brand service areas
Choose the closest National service area below. Each card opens the local National service page for that area, with coverage, common service needs and booking details.
Older-unit repair route
Older-unit repair route for National units in Sentul, Kuala Lumpur. Best for older systems needing R22/R410A checks, capacitor diagnosis, drain clearing and honest repair-or-replace advice.
Older-unit repair route
Older-unit repair route for National units in Kepong, Kuala Lumpur. Best for older systems needing R22/R410A checks, capacitor diagnosis, drain clearing and honest repair-or-replace advice.
Older-unit repair route
Older-unit repair route for National units in Cheras, Kuala Lumpur / Selangor. Best for older systems needing R22/R410A checks, capacitor diagnosis, drain clearing and honest repair-or-replace advice.
Older-unit repair route
Older-unit repair route for National units in Ampang, Selangor / KL. Best for older systems needing R22/R410A checks, capacitor diagnosis, drain clearing and honest repair-or-replace advice.
Older-unit repair route
Older-unit repair route for National units in Kuala Lumpur, Kuala Lumpur. Best for older systems needing R22/R410A checks, capacitor diagnosis, drain clearing and honest repair-or-replace advice.
Older-unit repair route
Older-unit repair route for National units in Petaling Jaya, Selangor. Best for older systems needing R22/R410A checks, capacitor diagnosis, drain clearing and honest repair-or-replace advice.
New unit
Servicing an existing National is on this page. Hanging a new one — vacuum pump to 500 microns, Type-L copper, 1-month workmanship warranty — is on the National new-unit labour. Wall-mounted labour starts from RM 199; ceiling cassette from RM 290. We install units you already bought and units we supply.
Technical Specifications
Key technical details and service requirements for National in Malaysia.
Error Code Guide
Blinking lights on your National unit? These are common error codes and what they mean. WhatsApp KL Renovator the code + model for a fast remote diagnosis.
Code not listed? WhatsApp +60182983573 with yourNational model number — we will diagnose it.
Problems
Services