Air Conditioner Knowledge Hub

A musty or sour smell when you start the AC is usually linked to moisture, dust accumulation, or the drainage area inside the unit.

If your AC suddenly starts dripping, switch it off, place a towel below, and read on to understand whether it's a drainage, installation, or icing issue.

Told you need to top up the refrigerant? Wait — refrigerant doesn't just disappear on its own.

Poor cooling does not automatically mean you need a refrigerant top-up. Start from the simplest possibilities and work your way through.

Clicking, rumbling, or squealing — not every noise signals a major problem, but none of them should be left alone indefinitely.

A unit that stops cooling well does not necessarily need replacing — but before committing to a repair, understand the fault and the overall condition.

Ice forming at the air outlet or on the pipes usually signals an airflow or refrigerant system problem — continuing to run the unit can make it worse.

Pressing the remote with no response, or the unit not reacting, does not necessarily mean the air conditioner is faulty. Start troubleshooting from the remote itself.

A noticeable reduction in airflow can stem from the filter, fan speed settings or internal component issues. Start with the simplest checks first.

Regular cleaning at appropriate intervals helps maintain airflow and reduce dust build-up, while giving a technician the opportunity to spot drainage or component problems early.

There is no single answer that fits every household — it depends on daily usage hours, the environment, and who lives there.

The filter is something you can clean yourself — but the wrong technique can damage it or make it difficult to reinstall.

Out of sight doesn't mean out of mind — a blocked outdoor unit undermines cooling even when the indoor unit is spotless.

A proper clean is not just spraying water and walking away — it covers protection, disassembly, washing, reassembly and a final sign-off.

Cat and dog hair spreading through the air causes air conditioner filters to clog significantly faster. Maintenance arrangements need to be adjusted accordingly.

1 HP? 1.5 HP? What capacity do you actually need for your room?

Inverter is not always the right answer — your usage hours, budget and room conditions all matter more than the technology label.

Both types have strengths — the right choice depends on your installation options, budget and noise tolerance.

R22, R32, R410A and R290 each have different characteristics. Knowing which refrigerant your unit uses has a real impact on future repair costs and environmental responsibility.

Getting the indoor unit position, drainage routing and pipework right before installation can significantly reduce future dripping and maintenance problems.

Two rooms with the same floor area but different orientations or floors can need very different cooling capacities. Learn the key heat-load factors behind the calculation.

Running the AC for long stretches in summer? Adjusting a few settings and daily habits can cut unnecessary power consumption.

Selecting the wrong mode means airflow without cooling — knowing the icons removes the guesswork.

Saving electricity does not mean suffering the heat — the key is reducing unnecessary load on the unit.

To work out your monthly air conditioning bill, you need to understand the relationship between horsepower rating, daily use hours and Energy Label grade.

The snowflake and water-drop icons each serve a different purpose. Knowing the difference means you will always pick the right mode — in summer and during the rainy season.

Is 'switching off for a few minutes when you step out' really economical? It depends on how long you are away and the type of unit.

The actual lifespan of an air conditioner varies greatly with usage habits, maintenance frequency and installation environment. Understanding the influencing factors helps you make the right decision.

A few simple checks before switching the unit back on after a typhoon can identify problems early and prevent further damage.

Commercial premises run air conditioning far longer than residential homes, and maintenance frequency and planning need to be adapted accordingly.