Monthly Archives: November 2011

Triple Threat Failure

As you can see, this small VFD has failed. Quite spectacularly too!  This small unit had not been properly maintained. It had a blocked and failed cooling fan plus a loose power lead. This caused the unit and terminal to … Continue reading

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Buss Capacitors are a heat related casuality.

These capacitors were removed from a failed VFD. The cooling fans had failed and the unit was running very hot. These capacitors failed violently, as you can see from the photos.  This repair was compounded by the fact that the … Continue reading

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Please enjoy these pages from our November Calendar

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