[smagown]

My switch was made by Todd Engineering, a PS 275, Todd is extinct and succeeded by Iota. Their ITS 50R which replaces the PS 275 is all over the net for failures and a recall. They use 10gauge wire in the box which isn't spe'd for 50 amps.Iota blames the installers for not tightening the lugs enough. All the parts in my box are on the net, Cutler Hammer contactors, relay on ebay and Amazon. I ordered the circuit board from Newell but it isn't the right one or at least is twice the size of mine. My problem started when I went out to the coach one day and it was running on the inverter but was plugged in. The breaker was thrown in the shop and two of the four lugs were melted in the shore plug plugged into the shop outlet. I replaced the end and flipped the breaker and noticed the coil didn't pull in so I started looking in the transfer switch box. I can manually lock it in by jamming the contact down but havent' figured out what is wrong. I replaced the contactor for shore power and the relay. I haven't gone any further. Dreaming that Russ White will come to LA and save me Newell is using the Surge Guard now and it runs $600 to $800.