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Dboland9 · 08-09-2019, 12:14 PM

Thanks for your thoughts. I have learned and done more since my last question. I talked to tech support at Dometic and asked what the lowest voltage that the AC should see and still be safe. They suggested anything under 109 could be problematic. I talked to an electrician who said as long as the voltage in any RV outlet did not fall more than 5% when I turned the AC on, I would be Okay. Before the AC was turned on, and with nothing else using power in the RV, I measured the voltage in an outlet in the house and compared it to an outlet in the RV and got the same value of 115V. When I turned on the AC, the outlet voltage in the RV fell to 109. That is about a 5% drop and it landed at the lower limit of what Dometic recommended.
I do not feel secure running the AC with the drop down to 109, as I fear damaging the compressor.
Any additional thoughts would be appreciated. Thanks

08-09-2019, 12:14 PM	#5
Dboland9 Junior Member Join Date: Jan 2014 Location: Florida Posts: 17	Thanks for your thoughts. I have learned and done more since my last question. I talked to tech support at Dometic and asked what the lowest voltage that the AC should see and still be safe. They suggested anything under 109 could be problematic. I talked to an electrician who said as long as the voltage in any RV outlet did not fall more than 5% when I turned the AC on, I would be Okay. Before the AC was turned on, and with nothing else using power in the RV, I measured the voltage in an outlet in the house and compared it to an outlet in the RV and got the same value of 115V. When I turned on the AC, the outlet voltage in the RV fell to 109. That is about a 5% drop and it landed at the lower limit of what Dometic recommended. I do not feel secure running the AC with the drop down to 109, as I fear damaging the compressor. Any additional thoughts would be appreciated. Thanks