What's left of Our Progressive EMS Unit
This is whats our EMS unit looks like after our last excursion. The box got fried. Bought it in 2009 and it has worked flawlessly up until a couple of weeks ago. No I don't know what or how, but it s...
Forum Discussion
myredracer wrote:MEXICOWANDERER wrote:
There is no way in hell I would ever enclose a POWER control circuit inside a plastic case, and then jeopardize the air inside a habitable air space or risk ignition of adjoining structural material.
I have noticed that our EMS does run warm. Warmer than I'd like and almost smells overheated if I get my nose near it (it's under one of the dinette seats but that does get good air flow). Not the best of designs having heat producing components inside a sealed plastic enclosure. Would probably benefit from some added ventilation but would undoubtedly void the warranty. Maybe the cover could be cracked open with some longer screws. Have a couple of small vents for electronic equip. that'd be perfect. Might try my IR gun on it.
A quick internet search shows a 30 amp contactor has a coil burden of about 7 watts which is a fair bit in a small sealed enclosure, plus maybe also some heat generated by the other components. PI doesn't publish the losses of their EMS units but could be tested with a clamp-on ammeter.
And probably only a couple of million sold and in use without one mention anywhere of a fire. Only in an internet RV forum could fear mongering take off rampant over a great and proven product. But hey, spin away.
