The short answer
Weak or no cooling usually points to airflow, dirty coils/filters, low gas, or a unit that is undersized for the room. Start with filter and outdoor clearance; leave gas and electrical diagnosis to a professional.
Common causes
- Dirty filters or indoor coils
- Low refrigerant after a leak
- Outdoor condenser fins clogged with dust
- Thermostat or sensor reading the room incorrectly
- Room heat load too high for the unit capacity
What you can safely check
These are low-risk checks only. Do not open live electrical panels, handle refrigerant, or dismantle fuel systems. If anything feels unsafe, stop and book a verified professional.
- Clean or rinse the indoor filter and refit only when dry
- Close windows and doors while testing; note whether cooling improves at night when outdoor temperature drops
- Feel the large copper pipe at the indoor unit after 10–15 minutes of cooling: it should feel cold if refrigerant is circulating (do not open any valves)
- Clear space around the outdoor unit so air can leave freely
When to call a professional
- Water dripping heavily indoors beyond normal drain behaviour
- Ice forming on pipes or the unit
- Electrical smell or frequent tripping
How Tușe and iRanti help
Open the Tuse app and describe what is happening in your own words — for example, “AC is not cooling”. iRanti reads the description, suggests the likely service category and a price band, and routes you toward a verified ac repair professional. It is a preliminary assessment, not a definitive remote diagnosis: the artisan still inspects on site before any repair.
Starting price for AC repair
AC repair on Tuse starts from ₦12,000. That is starting guidance, not a guaranteed final quote. Scope, parts, and complexity can change the total — you see the price in the app before you confirm, and any on-site change needs your approval first.
See the AC repair service page
FAQs
Why is my AC not cooling?
Dirty filters, low refrigerant, blocked outdoor units, and faulty components are common. Exact diagnosis needs an on-site check.
Should I top up AC gas myself?
No. Refrigerant handling needs proper tools and leak repair. Topping up without fixing a leak is a temporary fix that often fails again.
Related problems
Book a verified artisan
Identity-checked, location-matched, paid securely in-app.