Running norcild 1200 off the alternator
I have just replaced my second alternator in seven years (50k miles). I have occasionally run the fridge on invertor while driving at high altitudes. The 425 watt heaters should draw about 45amps at ...
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The refer elements do NOT draw 12 volt DC power. 1200 models have 2 AC elements and they pull 1.7 amps AC EACH for a draw of 3.4 amps AC. That is 408 WATTS AC . Your Inverter has MORE than enough power to run the AC elements and it will not cause failures of Alternators. If you have premature failure of Alternators, something else is causing it. 7 years and 50k sounds like a good run for an Alternator on a Diesel motorhome. Doug
