[Deper10]

If you leave the merge switch in the center off position, the relay will not get hot BUT if you are not running the coach engine or the generator routinely, your chassis batteries will be depleted from parasitic drain. The solenoid is easy to replace and should be easy to find. Just checked and Amazon has them https://www.amazon.com/Cole-Hersee-24106...B001FQL43U

Thanks  everyone for all the good advice. This morning I changed the merge solenoid but now have another issue. When I turned the 120 power back on, the inverter began to make an off and on buzzing sound and 12 volt lights would flash off and on. It will not stay on. The 120 compressor comes on yet I cannot get the air door to open, it makes no sound at all not even a clicking sound and I cannot get into the coach. Any thoughts?

Dario