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Canonman · 07-31-2020, 04:01 PM

When you first start the A/C, the fan will run for a minute or so before the compressor kicks in. You should be able to hear when this happens. It's pretty noticeable. If that is when the circuit breaker trips and A/C stops, then there is an overload on the circuit. The compressor start up requires more power (13 to 18 amps) than the A/C does to just run. A 20a house circuit should be adequate to start the A/C as long as there is little else running on that circuit at the same time.
Don't know how hot it is there but we're having a heat wave here 100+. If it's hot out and your running a smaller gauge or long (over 25') ext cord this could contribute to and increase the total amp draw. Also if the fridge is on electric (or auto) plus the converter is charging the batteries, these will also draw amperage.
Hope these ideas help with your troubleshooting.
BTW Welcome to the forum!

07-31-2020, 04:01 PM	#5
Canonman Senior Member Join Date: May 2016 Location: South Jordan, Utah Posts: 2,223	When you first start the A/C, the fan will run for a minute or so before the compressor kicks in. You should be able to hear when this happens. It's pretty noticeable. If that is when the circuit breaker trips and A/C stops, then there is an overload on the circuit. The compressor start up requires more power (13 to 18 amps) than the A/C does to just run. A 20a house circuit should be adequate to start the A/C as long as there is little else running on that circuit at the same time. Don't know how hot it is there but we're having a heat wave here 100+. If it's hot out and your running a smaller gauge or long (over 25') ext cord this could contribute to and increase the total amp draw. Also if the fridge is on electric (or auto) plus the converter is charging the batteries, these will also draw amperage. Hope these ideas help with your troubleshooting. BTW Welcome to the forum! Attached Thumbnails __________________ 2017 Cougar 279RKSWE 2007.5 Dodge Ram 2500 6.7 Cummins Retirement Training Completed I think the little voices in my head have started a chat group.