In January 2026, the business at First Centre, an office unit in Serangoon North, asked us to install a manual air-conditioning timer. She wanted to set the AC to run on a schedule for convenience and to save energy, but she had run into compatibility trouble trying to wire the timer up herself.
The Challenge
the business had bought a manual timer to automate the AC, only to find it would not work properly with the existing unit. When she tested it, the timer simply did not control the AC the way it should: it would not switch on or off to the schedule. That left the AC running when it was not needed, or off when it was, which was both inconvenient and a waste of energy.
Fixing it meant a proper technical look and coordinating with the AC vendor.
Solution
Our team went on site and worked out exactly where the connection was failing. We then worked closely with the AC vendor to sort through the wiring and control signals, building up a step-by-step plan to get the timer talking to the unit.
What we did:
- Wired the manual timer to the AC system correctly.
- Confirmed the power connections were right.
- Set the timer to match the business's preferred schedule.
- Tested it repeatedly to make sure it ran reliably.
Key Results and Outcomes
We got the timer installed across two visits, and the AC now runs on schedule without a hitch.
Key results:
- The timer is in and fully working, so the AC runs on an automatic schedule.
- Scheduled operation means better energy efficiency.
- Minimal disruption to the office, sorted in two efficient visits.
- A clean fix, achieved by coordinating with the AC vendor.
Conclusion
This job shows how we work through tricky compatibility problems with proper technical know-how and a bit of teamwork. By coordinating with the vendor and wiring it carefully, we gave the business a reliable setup that is both more convenient and more efficient. We keep delivering this kind of professional electrical work for commercial premises right across Singapore.