Probable Cause
- AC input voltage is incorrect.
- AC input voltage transients. Transients can be caused by lightning strikes or by other pieces of equipment sharing the unit’s AC power.
Corrective Action
- Verify AC feed into the building's circuit breaker is correct and connected to the proper transformer tap.
- Ensure the AC grounding for the unit's outlet is good and verify the unit is connected to an isolated and dedicated 20 amp circuit.
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