Weak or Warm Cooling
The indoor unit is running and blowing air, but the room does not cool as it normally does.
Refrigerant Check & Service
Aircon Gas Top Up Singapore
Is your aircon running but not cooling properly? Low refrigerant can be one possible cause, but it is not the only one. RM Acelect checks the system condition and refrigerant requirement before recommending a gas top up.
We provide refrigerant-related service for R22, R410A and R32 systems for residential and commercial customers across Singapore.
✓ 22+ Years Industry Experience
✓ R22 / R410A / R32
✓ Residential & Commercial
✓ Singapore Service
Not sure if you need gas?
Tell us your aircon brand, model if available, number of units and what you are experiencing. If the problem is not caused by low refrigerant, we can advise on a more suitable service such as troubleshooting or cleaning.
What Does an Aircon Gas Top Up Actually Mean?
“Aircon gas” is the common term used by customers for the refrigerant circulating through the air-conditioning system. The refrigerant transfers heat from the indoor space to the outdoor unit so the system can produce cool air.
A properly operating air-conditioning system uses a closed refrigerant circuit. Refrigerant should not normally disappear simply because the system is used. When the refrigerant charge is low, the cause may be a leak, an earlier service or installation condition, or another system issue. This is why a professional assessment is more useful than automatically adding gas every time the aircon becomes less cold.
Important: A gas top up is not a substitute for
diagnosing a recurring refrigerant problem. If the same unit keeps
becoming low on refrigerant, ask for the underlying condition to
be investigated.
Signs Your Aircon May Have a Refrigerant Problem
These symptoms can be associated with low refrigerant, but they can also have other causes. A proper check helps identify the right service.
Ice or Frost
Ice or unusual frost on the indoor coil or refrigerant pipe can indicate an operating-condition or refrigerant issue.
Runs for Too Long
The system runs continuously or for unusually long periods without achieving the expected cooling.
Unusual Refrigerant-Related Noise
Hissing or unusual sounds around pipework may require inspection, especially when cooling performance has changed.
Repeated Gas Top Ups
If the same unit repeatedly needs refrigerant, investigate the cause instead of treating top-up as routine maintenance.
After Pipework or Repair Work
Recent installation, relocation or refrigerant-related work can be relevant when assessing a later cooling complaint.
Not Every “Aircon Not Cold” Problem Needs Gas
This is one of the most important things to understand before booking a refrigerant top up.
| What you notice | Possible cause | What may be more appropriate |
|---|---|---|
| Air is weak or warm and refrigerant is confirmed low | Low refrigerant charge | Refrigerant check and top up, with further investigation where required |
| Cooling is weak with heavy dirt and poor airflow | Dirty filters, coil or blower | General servicing, chemical wash or deeper cleaning depending on condition |
| Unit does not cool and there are other abnormal symptoms | Electrical, fan, control or equipment fault | Aircon troubleshooting and repair |
| Refrigerant repeatedly becomes low | Possible leak or underlying refrigerant issue | Leak diagnosis and corrective work before repeated top ups |
| Cooling problem after recent installation or pipework work | Installation or refrigerant-related condition | System assessment and appropriate corrective action |
Aircon Gas Top Up Price Guide in Singapore
Our current guide is based on refrigerant type and the amount required. The actual service requirement is confirmed according to the system condition.
R22
S$18
Per 10 PSITypical split-system average: around S$90
R410A
S$28
Per 1 BARTypical split-system average: around S$120
R32
S$28
Per 1 BARTypical split-system average: around S$120
These are service guide rates, not a guaranteed final quotation. The required refrigerant, amount, system condition, site conditions and any additional diagnosis or repair can affect the final charge. We will explain additional work before proceeding.
R22, R410A or R32 — Which Gas Does Your Aircon Use?
The correct refrigerant depends on the air-conditioning system. Do not choose a refrigerant only from the age or brand of the unit.
R22
R22 is found in many older air-conditioning systems. Check the outdoor unit nameplate or system documentation to confirm the refrigerant.
R410A
R410A is used in many air-conditioning systems. The refrigerant type should be confirmed from the equipment nameplate before service.
R32
R32 is widely used in newer air-conditioning systems. Always verify the manufacturer's specified refrigerant for the particular model.
Never substitute refrigerants. R22, R410A and
R32 are different refrigerants and should not be treated as
interchangeable. The equipment nameplate and manufacturer
requirements should determine the correct refrigerant.
How RM Acelect Approaches a Gas Top Up
The goal is not simply to add refrigerant. The goal is to understand why the system is not performing correctly and recommend the appropriate next step.
1
Understand the Symptom
We review the cooling complaint, system type and service history where available.
2
Check the System
Operating condition, airflow and relevant equipment condition are assessed.
3
Confirm Refrigerant
The refrigerant type is checked from the system information and service requirements.
4
Top Up if Required
Where low refrigerant is confirmed and top-up is appropriate, the required service is carried out.
5
Test & Advise
The system is checked after service and further action is recommended if an underlying problem remains.
When a Gas Top Up May Not Be the Right Service
A professional service provider should tell you when another solution makes more sense.
If the aircon has heavy dirt buildup, restricted airflow, blocked drainage, an electrical fault, a fan problem or another equipment issue, adding refrigerant may not solve the complaint. In those situations, a general aircon service, chemical cleaning or troubleshooting visit may be more appropriate.
If the system repeatedly loses refrigerant, the more important question is why the refrigerant level is dropping. Repeated top ups without investigating the underlying problem can lead to repeated service costs without addressing the actual fault.
Aircon Gas Top Up FAQ
Straightforward answers to common questions from Singapore homeowners, tenants, offices and commercial customers.
Weak or warm cooling, unusually long operating time, unusual ice formation, or a history of repeated gas top ups can indicate a refrigerant-related problem. These symptoms can also have other causes, so the system should be checked before adding refrigerant.
Refrigerant circulates in a closed system and should not normally be consumed like fuel. If a system repeatedly has low refrigerant, the cause should be investigated, including possible leakage, previous service or installation conditions.
Common refrigerants include R22, R410A and R32. The correct refrigerant should be confirmed from the equipment nameplate or manufacturer information. R22, R410A and R32 are not interchangeable.
RM Acelect's current guide is R22 at S$18 per 10 PSI, R410A at S$28 per 1 BAR and R32 at S$28 per 1 BAR. A typical split-system average is around S$90 for R22 and S$120 for R410A or R32. Actual charges depend on the system condition, refrigerant required and work performed.
It can restore cooling when low refrigerant is confirmed, but not every cooling problem is caused by low gas. Dirty coils, restricted airflow, electrical faults, fan problems and other equipment conditions can also cause poor cooling.
Repeated refrigerant top ups should prompt further investigation. A possible leak or another underlying issue may need to be identified and repaired instead of repeatedly adding refrigerant.
RM Acelect provides refrigerant-related service for systems using R22, R410A and R32, subject to the equipment type, refrigerant requirements, system condition and site assessment.
Yes. RM Acelect provides air-conditioning services for HDB flats, condominiums, landed properties, offices, shops, commercial premises and other suitable sites across Singapore.
Related Aircon Help
If you are not sure whether refrigerant is the problem, these services may be a better starting point.
Not Sure What Your Aircon Needs?
Tell RM Acelect what is happening — for example, “aircon is running but not cold”, “ice on the pipe”, or “gas was topped up before but the problem returned”. We can help identify the appropriate next step instead of assuming that a gas top up is always the answer.