AC Repair in JLT — Water Leaks and Drainage Faults Solved

Because the condensate drain is not clearing. Your fan coil unit pulls moisture out of the air and it collects in a shallow pan under the coil. That pan drains through a small pipe, and in JLT that pipe often runs a long horizontal distance before it reaches a riser. Long, warm, wet runs grow biofilm, the pipe narrows, the pan fills and the overflow soaks into the gypsum. Clearing the immediate blockage is not enough on its own, which is why we flush the whole line and check that it still has continuous fall.

It is a small U-shaped dip in the condensate pipe that holds a little water and stops air being pulled back up the drain. Most fan coil unit drainage failures we see in JLT come down to a trap that was never fitted, was fitted too small, or has simply dried out. Without a working trap the unit can pull air through the pipe instead of pushing water down it, so the pan floods even though the pipe itself is clear. It is a five-minute check that a surprising number of visits skip.

In a chilled-water tower like JLT the usual answer is the control valve, not the gas. A small motorised actuator opens and closes a valve to let chilled water through the coil. When that actuator sticks shut, the fan keeps running and moving air but no cold water reaches the coil, so the air stays at room temperature. We test whether the actuator is receiving its signal and whether it is physically moving before anything is replaced.

All of them, Clusters A through Z, including the Lake Terrace and Almas Tower buildings and the towers facing JLT Park. Please give us the cluster letter as well as the tower name when you book. Several JLT buildings share very similar names, each cluster is managed separately, and the podium and basement entrances differ, so the cluster letter genuinely prevents a wasted trip.

For work inside your own apartment, your booking is normally enough. What most JLT towers do require is contractor registration and a booked service-lift slot before tools can come up, and each cluster sets its own rules through its own Owners Association. Some towers also restrict contractor working hours. We coordinate that with your building management and will tell you honestly if their process adds a day.

It is closely related. Mould on a supply grille means moisture is sitting where it should not be, which usually points back to a wet drain pan or a coil that is not draining properly. Cleaning the grille alone treats the symptom. The durable fix is to clean and sanitise the pan, flush the line so the water actually leaves, and get the airflow back to normal so the coil is not running permanently damp.