An "Essential Circuits Transfer Switch" failed to transfer back to Utility Power. The owner said they saw smoke coming out of the bottom right hand corner of the transfer switch.
When I asked I found out that there had been a prolonged brown out of Utility Power.
When I removed the cover I found that C1, which switches the RTS back to Utility Power had a catastrophic failure in the brown out. Not only destroying C1 but preventing any transfer back to Utility Power - including manual transfer. Filling the RTS with smoke and overheating the wires and components of the transfer side of the panel.
I turned OFF the Utility Power Feed from the Main Panel. Turned OFF and Locked Out the Generator itself. Removed the Transfer Switch Feed to the Breaker Assembly and taped up the copper ends. Then moved the Utility Power Feed from the top of the transfer switch to the top of the breakers.
Turning ON the Utility Power Feed from the Main Panel would provide power to the Essential Circuits once Utility Power was restored.
This gave me time to order the parts I needed and test everything before putting the transfer side of the panel back in operation.
I will follow up with a video "Replacing C1 after a catastrophic failure" once the part arrives.
Негізгі бет GENERAC TRANSFER SWITCH FAILURE TO TRANSFER
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