Aircon Not Cold in Yishun? Your Refrigerant May Be Low
When your air-conditioning unit runs all day but your room in Yishun stays stubbornly warm, low refrigerant gas is one of the most common culprits. In Singapore’s equatorial heat — with Yishun regularly seeing temperatures of 31°C to 32°C on humid afternoons — an aircon that has lost refrigerant simply cannot absorb enough heat from the room to cool it effectively. The result: a unit that runs continuously, drives up your electricity bill, and still leaves you sweating.
Billy Aircon Yishun provides fast, professional refrigerant gas top-up services for all residential and light commercial units across Yishun and the North Singapore region. Our licensed technicians handle R22, R410A, and R32 refrigerants, and every gas top-up service includes a complimentary leak detection check.
Signs Your Yishun Aircon Needs a Gas Top Up
Refrigerant loss is gradual, so the symptoms often develop slowly. Yishun homeowners typically notice one or more of the following before calling us:
- Poor cooling despite low temperature settings — the unit runs but the room stays warm even at 16°C or 18°C
- Ice on the indoor unit or piping — a paradox that occurs when low refrigerant causes the evaporator coil to drop below freezing
- Longer time to cool the room — what used to take 10 minutes now takes 30 minutes or more
- Hissing or bubbling sounds from the refrigerant piping, particularly near the indoor unit or flare connections
- Compressor running non-stop — the outdoor unit never cycles off because it cannot achieve the set temperature
- Higher electricity bills — a refrigerant-starved compressor draws more power as it struggles to reach target temperatures
If you are experiencing any of these symptoms in your Yishun home, contact Billy Aircon Yishun for a pressure check and gas top-up assessment.
Understanding Refrigerant Types for Yishun Units
The correct refrigerant for your aircon depends on the unit’s age and specification. Using the wrong gas can damage the compressor and void your warranty. Our technicians always verify the gas type before proceeding.
R22 (Freon) — Older Units
R22 was the standard refrigerant for residential aircons installed before approximately 2015. Many older resale HDB flats in Chong Pang, Nee Soon Central, and the mature Yishun estates still have units running on R22. While we carry R22 stock and can top up these units, it is worth noting that R22 supply is becoming increasingly constrained and expensive. If your R22 unit is repeatedly losing gas, a system replacement is worth considering.
R22 gas top-up: from $50
R410A — Mid-Generation Units
R410A became the dominant refrigerant from around 2010 to 2019 and is still found in the majority of units installed in Yishun condos and BTO flats built during this period. It offers better efficiency than R22 and is more readily available. R410A leaks are typically at flare joints and can often be repaired and re-charged in a single visit.
R410A gas top-up: from $60
R32 — Newer and More Eco-Friendly Units
R32 is increasingly used in new aircon units sold in Singapore from around 2019 onwards. It has a lower global warming potential than R410A and offers better energy efficiency. Many newer Yishun BTO flats in Khatib and the Vanda Breeze development have units that use R32. Handling R32 requires specific equipment and training, which our certified technicians possess.
R32 gas top-up: from $80
Leak Detection: Every Gas Top-Up Includes a Check
Refrigerant does not get used up — if your system is low on gas, it has leaked out somewhere. Simply topping up without identifying the leak is a short-term fix; the gas will escape again within months and you will be back to square one.
That is why every Billy Aircon Yishun gas top-up service includes a leak detection check as standard. We use electronic leak detectors and pressure testing to identify the source of the leak. Common leak points we find in Yishun homes include:
- Flare joint connections at the indoor unit — these can loosen over time due to vibration in high-rise HDB blocks
- Micro-cracks in copper piping — caused by years of thermal cycling and, in some cases, physical damage during renovation works
- Evaporator coil pin-holes — rare but possible, especially in units that have been running with low refrigerant for a long time (the resulting ice formation can physically stress the coil)
- Service valve packing — the Schrader valve on the outdoor unit can develop slow leaks over time
If we find the leak, we will advise on whether it can be repaired on-site (many flare joint issues can be addressed immediately) or whether a more complex repair is needed.
Gas Top Up Pricing for Yishun
| Refrigerant Type | Price |
|---|---|
| R22 gas top-up | From $50 |
| R410A gas top-up | From $60 |
| R32 gas top-up | From $80 |
| Leak detection only (credited if top-up done) | $30 |
Prices depend on the amount of gas required. Our technician will take a pressure reading and advise you on the quantity needed and the total cost before proceeding. We never add gas you do not need.
Serving All of Yishun and North Singapore
Our refrigerant technicians cover all of Yishun — from the high-rise HDB estates of Chong Pang and Nee Soon to the condos near Khoo Teck Puat Hospital (KTPH), the executive condominiums along Yishun Ring Road, and the landed homes of Springleaf and Lower Seletar. As a North Singapore-focused team, we offer faster response times than island-wide companies and can often arrange same-day or next-day appointments.
Call Billy Aircon Yishun for a Same-Day Gas Top Up
Do not suffer through another sweltering Yishun night with a poorly cooling aircon. Contact Billy Aircon Yishun today to arrange a gas pressure check and top-up appointment. We will diagnose the issue honestly, top up only what is needed, and check for any leaks — all for a transparent, upfront price.
