Answers
Jan 31, 2022 - 04:54 AM
Yes some of our ES50M-65N transfer switches do hum. This is not a sign of defectiveness. Attached is our trouble shooting repair guide. You can perform the test referenced to see if you have a defective part in the switch. file:///C:/Users/mmaurer/Downloads/ES50M-65NTrblShootRepair102506.pdf
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