A local client got in touch about a portable suction pump with a power switch that had stopped working. It sounded like a simple fix on paper, but as always with electronics, you never really know until the unit is on the bench and opened up. As the pump itself wasn't cheap, we agreed a maximum repair budget upfront to make sure the job stayed worthwhile.
When we collected the pump, we got a bit more context: the switch had "sort of fallen apart", been put back together by the customer, but still wasn't working. Once in the workshop, we quickly established the switch itself couldn't be repaired and would need replacing entirely.
As with most repairs, the hardest and most time-consuming part is tracking down the correct replacement part. Even something as simple as a switch has several factors to match — diameter, depth, fixing mechanism, electrical rating, and the switch action itself. Getting any of these wrong means a part that doesn't fit or doesn't perform safely.
We opened up the suction pump to get proper access to the switch and confirmed the exact specification needed. Finding the part at a reasonable price was the next hurdle — while switches like this are often readily available, ordering small quantities tends to attract high delivery charges. The cheapest option on paper was RS, but once their delivery fee was added, it came to more than double what we ended up paying by sourcing from elsewhere.
With the new switch in hand, we fitted it, gave the whole unit a clean and once-over, and tested it thoroughly before returning it to the customer.
The portable suction pump was back in service for well under a third of the cost of a replacement unit, with a like-new switch and a clean once-over to boot — another happy customer back up and running quickly.
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