So, you have the Hougton AC as well. I would like to talk to you about how you like your AC and maybe you can answer some questions for me. Back to the subject what I did; is wired my EC30 to start when shore power is lost and stop when shore power is restored. Not sure why yours isn't setup that way. I have seen some of the factory installs and it appeared to me that they installed a small AC to DC plug in converter right below the EC30 using the outlet to sense AC power available, What I did instead of this is used a small transformer that drops 120V AC to 12VAC (like a doorbell transformer) and wired the 12V AC to the terminals 13 & 14 of the EC30. The transformer is installed in the transfer switch box which, had plenty of space for it, plus allowed me to pick up shore power right at the transfer switch relay. The Houghton AC will re-start if it was running previously when power is restored.
My question to you about the Houghton AC, does your AC want to short cycle when the temperature setting gets to the set point? Here in Florida summer is very hot, during the day the AC runs continuously but at night it gets to set temp shuts down for a couple minutes if that and then restarts. The restart process is what gets me also, it first kicks the fan on, then cycles off, then kicks the fan on and starts the compressor, runs to shut off temperature. The logic used in the temperature control is different not a big fan. I have seen where they say the unit will short cycle if the discharge air is recirculated back into the inlet. They say you should adjust the vents, so the air doesn't bounce off bulkheads or cabinets. I have tried every possible configuration but can't get it to stop, drives me nuts, I wish the unit used a standard thermostat instead of the internal one. The issue would be non-existent if they did it. I like how quite it is but the short-cycling wakes me up. I think I may go to the Dometic AC, try a soft start kit and hook the thermostat back up. Have you had the short cycle issue, also does yours kick the fan on then off and on again with the compressor? This AC was installed by Advanced RV, the previous owner had it installed. Have you seen this with your AC?