Air conditioner manufacturers write their service intervals for temperate climates. Jamaica is not one. Between year-round heat, high humidity, dust in the dry season and salt air along the coast, a unit here does considerably more work under considerably worse conditions.
Which is why we tell customers something simple: most of the air conditioners we are called out to "repair" have not failed. They have just never been cleaned.
What Neglect Actually Does
Dirt on the evaporator coil is not a cosmetic issue. It is an insulating blanket sitting between the refrigerant and the air you want cooled. Heat transfer drops, the unit runs longer to reach the same temperature, and your JPS bill climbs while the room feels less comfortable than it used to.
On the outdoor side, a condenser coil clogged with dust, leaf litter and — near the coast — salt deposits, cannot reject heat properly. Head pressure rises, the compressor runs hot, and the unit's life shortens measurably.
- Higher electricity bills for the same comfort
- Rooms that take much longer to cool down
- Musty smell when the unit first starts up
- Water dripping from the indoor unit
- Ice forming on the pipework or coil
- Compressor failure years before it should
How Often, Really
For a typical home unit running at night, every six months. For anything running most of the day — an office, shop, restaurant, or a bedroom used by someone working from home — every three to four months is more realistic.
Two conditions push you to the shorter interval regardless of run time. Living within a couple of miles of the sea, because salt air attacks the condenser fins aggressively. And having anyone in the household with asthma or allergies, because a dirty blower wheel is redistributing everything it has collected into the air you breathe.
Filters are the one thing you can and should do yourself, between services. Slide the front cover open, take the mesh filters out, wash them in warm soapy water, let them dry completely, and put them back. Once a month during heavy use. It takes fifteen minutes and it is the highest-value maintenance in the whole system.
What A Real Service Includes
There is a wide gap between a genuine service and someone spraying the outdoor unit with a hose and charging you for it. A proper service covers:
- Filters washed and dried
- Evaporator coil cleaned
- Blower wheel cleaned — the part most often skipped
- Condenser coil washed down
- Drain line flushed and tested
- Operating pressures and temperatures checked
- Electrical connections, contactor and capacitor inspected
- Refrigerant charge verified against spec
The blower wheel is the tell. It is fiddly to reach and takes real time, so it is the first thing a cheap service skips — and it is where most of the musty smell and lost airflow actually lives.
The Refrigerant Conversation
If a technician tells you your unit "needs gas," ask why. A sealed refrigerant system does not consume refrigerant. If the charge is low, it leaked out, and it will leak out again.
Topping up without finding the leak is selling you the same repair twice. We locate the leak, repair it, then recharge to the manufacturer's specified weight. It costs more on the day and less over the year.
Need Air Conditioning Done Properly?
NASTIC covers air conditioning for homes and businesses across all 14 parishes, with written quotes before we start and our workmanship guarantee behind every job.