Why does the air conditioner use so much electricity in Da Nang apartments and how to reduce consumption?

From messages by 3 participants in 1 source · Last activity: 54 days ago

TL;DR

At 24°C AC can consume around 2 kWh, at 26°C around 1.2 kWh — this is normal behavior. Check if filters and outdoor unit radiator are dirty (cleaning reduces consumption), and find out if your AC is inverter type.

What the community said

If your AC is non-inverter (most units in Vietnam are), it has only two modes: fan only — around 50W, and compressor running — from 700W to 1.2kW depending on unit power. Inverter models adjust power automatically and start smoothly, non-inverter units kick in abruptly.

700W-1.2kW (compressor)

Check if the indoor unit filters and outdoor unit radiator grille are dirty. If so, gently clean the radiator with a soft brush and remove/wash the filters. This should reduce power consumption, especially if buildup was significant.

The difference in consumption between 24°C (around 2 kWh) and 26°C (around 1.2 kWh) is considered normal — the less cooling needed, the less energy the compressor uses.

24°C ≈ 2 kWh, 26°C ≈ 1.2 kWh