Here are some common AC problems and a few easy things you can try first before booking a service.
1) Water dripping from indoor unit
Likely: Condensate drain is clogged or coil is wet from icing/high humidity.
Try this first (safe):
Turn OFF cooling. Run Fan or Dry mode for 30–60 min to dry the coil.
Keep doors/windows closed while cooling.
If your model has a user‑removable mesh filter, rinse and dry it (no screws, no chemicals). If unsure, skip.
If dripping continues → stop using and select “Request Cleaning/Drain Service”.
2) Weak or no cooling
Likely: Wrong settings or airflow restriction.
Try this first:
Mode = Cool, temp 24 °C or lower, fan Medium/High.
Close doors/windows and heat sources (ovens, direct sun if you can shade).
Clean user‑removable filter (if designed for user cleaning).
After turning on, wait 3–5 minutes (compressor delay) before judging.
3) Unit won’t turn on
Likely: Remote batteries, timer, or power/breaker.
Try this first:
Replace remote batteries; cancel any Timer setting.
Check the dedicated AC breaker/isolator. If tripped, reset once only. If it trips again, stop and request service.
Confirm there’s power in the area (other appliances/lights ok).
4) Unusual noise (rattle/whistle)
Likely: Something touching the unit or restricted airflow.
Try this first:
Move curtains, blinds, or objects away from the unit/outdoor section.
Set louver to blow horizontally and ensure vents/grilles are fully open.
If noise persists, stop using and request inspection. (Do not tighten/open panels.)
5) Musty or bad odor
Likely: Moisture on coil/filter; stagnant air.
Try this first:
Run Fan mode 20–30 min after cooling to dry interior.
Clean user‑removable filter with water only; dry fully before reinstalling.
Briefly ventilate the room (open a window 5–10 min), then resume cooling.
6) Outdoor unit seems off / indoor fan only
Likely: Normal compressor delay, restricted airflow outdoors, or power/breaker.
Try this first:
After starting, wait 3–5 minutes (normal delay).
Ensure the outdoor unit has clear space (no plants/coverings within ~0.5–1 m).
Check the AC breaker/isolator once. If it trips again, stop and request service.
7) Ice/frost on indoor unit or lines
Likely: Low airflow from a dirty filter or very low set temperature.
Try this first:
Turn OFF cooling and run Fan mode until ice melts.
Clean user‑removable filter (if applicable).
Resume cooling at 24–26 °C. If icing returns, request service.
8) Remote not responding
Likely: Batteries, blocked sensor, or incorrect mode.
Try this first:
Replace batteries and ensure they’re inserted correctly.
Point remote at the receiver; clear any obstruction; wipe the remote/receiver window.
Confirm Mode and Temp settings.
Red‑flag — Stop and book service immediately
Burning smell, smoke, or sparking.
Breaker trips repeatedly after one reset.
Water near electrical outlets.
Error code on display (take a photo and attach in the form).