Insights
Articles from HERO Control Systems on industrial and telecom repair, electronics design, maintenance and technical training in Zambia.
Repair, PCB design, firmware and IoT: 15 questions answered
These are the questions I am asked most often by maintenance managers, engineers, procurement teams and students. I have answered them the way I would across the bench in our Lusaka workshop: what to check, what to…
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Repair is the circular economy that pays for itself
Most organisations already practise the circular economy without calling it that. Every time a failed drive, rectifier or control board is repaired instead of replaced, a machine goes back to work, the money stays in the…
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Grow Zambia runs on machines. We keep them running.
At his inauguration on 1 September 2026, President Hakainde Hichilema set out the Grow Zambia Agenda: a five-year programme summed up in eight numbers, "10-10-5-3-3-1-1-1". As publicly reported, they stand for 10 million…
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The work that used to leave Zambia
A rectifier module fails at a tower site. For years that meant one of two things: pack it up, ship it abroad for repair and wait, or throw it away and buy a new one in dollars. The same was true of the radio units on the…
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In an EV battery, the electronics usually fail before the cells
An electric vehicle's battery pack is usually its most expensive part, often a quarter to a third of the vehicle's value. For Zambian owners a replacement is also an import, with freight, duty and a 4 to 12 week wait. So…
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Discontinued worldwide: how we rebuilt a control card for Lusaka Water
Lusaka Water Supply and Sanitation Company starts pump motors through soft starters. Inside each soft starter, a small control card switches the contactor that carries the motor current. At Lusaka Water's pump stations…
Read article →Equipment failing? OEM can't help?
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