Aircond Gas Top-Up Myths Malaysia — What's True, What's Not

Myth 1 — "Gas needs to be topped up every year"

False. A properly installed aircond with no leaks does not lose gas. If your unit needs top-up every year, there is a leak that must be found and repaired first.

Myth 2 — "Any amount of gas is fine"

False. Both too little AND too much refrigerant damage the compressor. Professional technicians use a manifold gauge for exact pressure measurement.

Myth 3 — "R22 can be replaced with R410A"

False. R22 and R410A are incompatible. Never mix refrigerant types. Continue using R22 until the unit needs replacement.

Myth 4 — "More gas = colder air"

False. If gas is already at correct pressure, adding more harms the compressor. Always measure first.

Myth 5 — "R32 costs much more"

R32 top-up is slightly higher in cost but uses less volume, so the total difference is smaller than it appears.

What a Proper Gas Top-Up Includes

• Leak check before adding gas
• Current pressure measurement
• Correct amount added
• Final pressure verification
• Cooling performance test

R22 from RM 120, R410A from RM 150, R32 from RM 180. Leak check included. WhatsApp +60 18-298 3573. See: R32/R410A Gas Service | Fix: Aircond Low Gas

How to Know If Your Unit Actually Has Low Gas

The clearest sign is consistently weak cooling across all modes and settings, combined with the outdoor unit compressor running continuously without cycling off. Ice forming on the evaporator coil or copper pipes is a strong indicator of significantly low gas. Warm air blowing from the vents while the fan runs at full speed also suggests the compressor is not achieving adequate pressure differential. These symptoms together almost always indicate low gas or a refrigerant leak — but the only way to confirm is with a manifold gauge measurement. Never top up based on symptoms alone without pressure verification.

R22 from RM 120, R410A from RM 150, R32 from RM 180. Leak check always included. WhatsApp +60 18-298 3573.

What a Legitimate Gas Top-Up Looks Like

A professional gas top-up takes 45–60 minutes. The technician arrives with a manifold gauge set and refrigerant cylinder, connects the gauges to the service valves, reads current suction and discharge pressure, compares to manufacturer specifications for the ambient temperature, and only then adds refrigerant if the pressure is confirmed below specification. The gauge readings before and after are shown to you. If any technician proposes to top up gas in 10 minutes without connecting gauges, this is not a professional service. Always ask to see the gauge readings before and after any gas work.