AHU maintenance in Obaid

AHU servicing focuses on the mechanical and thermal parts inside the unit itself: filters, coil, drain pan, bearings and dampers. Duct cleaning removes dust from the distribution network. The two jobs use different tools and address different problems, and we offer each as a separate service.

In many cases yes, depending on the system layout and the number of units. If the building can run a standby unit while we work on another, servicing continues without cutting cooling to any zone. The technician confirms this at the first survey.

High humidity loads the dehumidification coil harder and speeds up algae growth in the drain pan, blocking the drain much faster than in dry climates. For that reason we give the pan clean and the drain fall check particular attention when servicing AHUs in Jeddah.

If a bearing shows audible grinding, measurable heat on the housing or radial play when checked by hand, greasing will not fix it. We measure and inspect on site and decide the right action there, because bearing type and size vary from one unit to another.

Continuous vibration with a steady hum usually points to an unbalanced fan wheel or dirt build-up on the blades, while an irregular grating sound comes from the bearing itself. The technician measures vibration on the frame and on the shaft; if it is higher on the frame he balances the wheel, and if it is higher on the shaft he inspects the bearing and decides whether to replace it or lubricate it depending on the degree of wear.

Yes, the AHU is the heart of the central system. When filters clog or dirt builds on the coils, airflow drops and does not distribute evenly across all floors and zones.

We liaise with building management or in-house maintenance on a schedule that avoids disrupting operations, especially in hotels and hospitals where timing is critical.

Humidity and salt in the air accelerate wear on bearings and belts, while dust clogs filters and coils faster. This requires regular inspection and filter changes at shorter intervals.

The chiller produces chilled water, while the AHU distributes that cold air through the ducts. If the chiller runs but cold air does not reach all floors equally, the fault is in the AHU, not the chiller.