The pump that ran dry
A borehole pump in a Gwarinpa estate failed in March because the tank level switch had been faulty for months. The replacement pump, cable and call out came to ₦2.6 million, plus three days without water for 340 homes. A quarterly check of the level switch costs about ₦35,000 a year.
The chiller that overheated
Dirty condenser coils make an air conditioning plant work harder and fail sooner. On one office building, quarterly coil washes cut electricity use on the chiller by 14 percent and added years to the compressor. The washes cost less than one month of the savings.
The generator that would not start
Most generator failures we see on new sites are batteries, fuel filters and dirty diesel. All three are found on a weekly start test and a 250 hour service. A failed start during a grid outage, in a hospital or a data room, has a cost nobody wants to calculate.
How to start
Begin with an asset register: list every piece of plant, its age and condition. Then pick the five assets whose failure would hurt most, and put those on a weekly or monthly check. Expand from there. Our service level calculator shows what a full plan costs for your building.
What to measure
Track one number: planned tasks completed on time, as a percentage. When it rises above 90, reactive faults fall, almost always. That figure is the first line in every Keystone monthly report.