Quote:
Originally Posted by Tomcat3rd
Hi shorthauler,
I've had a similar problem where the power from the post looked good on my portable surge protector and would look ok for a bit in the trailer and then one leg of the AC power would fail. Long story short, it turned out to be the onboard EMS surge protector was failing. When it finally failed I couldn't get any AC power into the coach, which was a major problem. I found a great RV center in Billings, MT, Pierce RV, and they quickly found the problem and replaced the part and I was on my way. You might want to have yours checked too. It's located behind the bulkhead near my water heater in my 2019 Montana 3931FB. Once changed all systems were normal. Hope this helps.
Tom & Sondra Chambers
2017 F-250,
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While surge protectors are less expensive, I think the consensus about surge protectors is they fall short of monitoring all the electric parameters that an EMS does, as well as protecting the a/c compressor from premature start up after a momentary interruption.