Tag Archives: fan failure

VFD Preventive Maintenance!

Several Variable Frequency Drives (VFDs) were sent into Deltas’ shop for repair. The clients’ complaint for them was that they were failing with an “Overtemp” fault. This is a very common fault/failure on all brands of VFDs. With only a … Continue reading

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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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