Hi, I just wondered if the inverter transfer relay was somehow momentarily being operated even though the inverter was shut off (and also had no DC either). There is not much else that can be causing this problem, so it has to be the inverter or its transfer relay causing a short spike fail open of AC that causes the TVs to turn off; but short enough that the microwave is not affected. Very strange. Usually inverters just have their own DC fuse wired off the coach batteries by the way. Just restore your battery connection and turn use store back on and make sure you are all working again. Since you have a new coach you might have to ask your Dealer to resolve this one. They can substitute a new inverter and see if that makes a difference. The regular 30 second failure is the real head scratcher. Sorry for your hassle.
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