Connection issue with transfer switch
On my last few trips I noticed the AC voltage in the camper was starting to drop compared to the pedestal voltage. After a little bit of searching sure enough some connnections on the transfer switch ...
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The reason they burnt was the reason they are loose. When you tighten the Clamp screws, it is IMPORTANT to tighten as tight as you can get them, then wait 5 or 10 minutes. Go back and retighten. You will be surprised at how much more you can turn the screws that 2nd time. This gives the copper strands time to settle. When they are done originally, they seem tight. But after a few years of running at MAX or OVER the rating(30 or 50) amp(usually 30 amp), the heat build up from this causes the slightly loose wires to expand and shrink and when they get slightly loose that current draw then heats up and causes the melting and burns/melts. It is important to check your Main breaker Panel and Transfer switch wiring at least once after you purchase your unit. Tighten them one time and you will be OK. Doug
