“My AC Runs But Won’t Cool” — What’s Actually Wrong
It is the most common call we answer, and in Accra heat it is not something to sit on. The frustrating part is that a unit blowing warm air is rarely a single obvious fault — and “just add gas” is almost never the honest answer. This guide walks through the real causes in Accra conditions, what you can safely check yourself, and when to stop and call.
One thing to fix first: if your unit is leaking water inside, tripping the breaker, or smelling of burning, switch it off at the wall before anything else and call. Those are not “wait and see” symptoms.
The Real Causes, in Order
Dirty Filter or Condenser Coil — The Accra Classic
Accra dust and dry-season harmattan clog filters and outdoor condenser coils faster than almost anywhere. A choked coil cannot shed heat, so the unit runs and runs but barely cools — and burns extra power doing it. This is the single most common cause we find, and cleaning often restores cooling outright.
What you can check: pop the indoor cover and look at the filter. If it is grey with dust, that alone can be your problem. Clean filters are the one thing a homeowner can safely do.
Low Refrigerant from a Leak
If the unit has slowly lost cooling over weeks, it is often refrigerant escaping through a small leak. Here is the key point: topping up gas without finding the leak just buys a few months. The refrigerant that leaked out will leak out again. An honest fix finds and repairs the leak, then recharges the correct refrigerant — R-410A or R-32 (R-22 is phased out).
Failed Capacitor, Fan or Compressor
An electrical or mechanical fault: a dead start capacitor, a stalled fan motor, or a failing compressor. The unit may hum, click, or run without the outdoor fan spinning. This needs a technician with a meter — not a guess.
Frozen Evaporator Coil
Ice on the indoor coil — caused by low airflow (dirty filter) or low refrigerant — actually blocks cooling. The unit ends up blowing warm because the iced coil cannot do its job. Switch it off and let it thaw, but it will refreeze until the underlying cause is fixed.
Blocked Condensate Drain
Water dripping inside usually is not a refrigerant problem — it is a blocked condensate drain backing up. Quick to clear, but worth catching before it stains a ceiling or wall.
What You Can Check vs What Needs a Technician
| You can safely check | Needs a technician |
|---|---|
| Is the filter clogged with dust? | Refrigerant level and leak detection |
| Is the thermostat set correctly? | Capacitor, fan motor, compressor faults |
| Has the breaker tripped? | Recharging refrigerant (R-410A / R-32) |
| Is the outdoor unit blocked by leaves/dust? | Anything involving the sealed system |
Refrigerant work is not a DIY job — it needs the right gas, the right gauges, and a technician who finds the leak rather than just topping up.
Why “Just Add Gas” Is a Red Flag
A unit that is genuinely low on refrigerant is low because it leaked — sealed systems do not “use up” gas. So anyone who quotes a flat “gas refill” down the phone without finding the leak is selling you a few months, not a fix. We diagnose the actual cause first, then quote the repair from an on-site inspection — from ₵X on inspection, never a blind phone price. See AC Servicing.
Prevent the Next One
In Accra dust and humidity, a service once or twice a year keeps coils clean, cooling efficient, and the bill down — and catches a small leak before it becomes a burnt-out compressor. A serviced unit cools better, uses less power, and lasts longer. Ask about a planned service interval so it never reaches the not-cooling stage.
Frequently Asked Questions
My AC runs but is not cooling — what is wrong? Most often a dirty filter or condenser coil choking airflow, low refrigerant from a leak, a failed capacitor or fan, a frozen coil, or a compressor fault. We diagnose the actual cause same-day rather than guess.
Can I fix it myself? You can clean a dusty filter, check the thermostat, and make sure the outdoor unit is not blocked. Refrigerant, electrical, and compressor faults need a technician with the right tools.
How much is a gas refill? Quoted from an on-site inspection, never blind down the phone — it depends on the refrigerant, how much leaked, and any failed part. If it leaked once it will leak again, so we find the leak rather than just top up.
How often should I service my AC? Once or twice a year in Accra’s dust and humidity — it cools better, uses less power, and lasts longer. We offer a planned service interval.
Not cooling in this heat? Call +233 27 000 0866 — same-day across Accra, we diagnose the real cause and confirm the price before we start. See AC Servicing and AC Installation.