Air conditioner and Voltage drop

X2 for the voltage boosters. I have a Hughes Autoformer and love it. At 109v the Hughes will boost the voltage to about 120v.

And it's probably lower at the AC.

What is the AC voltage prior to starting A/C Unit?

How long running A/C Unit before you see the drop in voltage to 109V AC?

bob@29154 wrote:
I have "save a watt" gismo I use in my rv. When starting up air voltage drop is minimal but after running voltage drop as low as 109 volts. Plugged into 30 amp service

It's Summertime and the voltage is a'sagging.

My guess is that your park's voltage is dipping because of all the ACs being used by everyone in the park.

Get one of these autoformers/voltage regulators to "boost" the voltage from the power pedestal:
- PowerMaster
- Hughes
- Surge Guard Voltage Regulator

You could also switch water heater and fridge to gas to take some load off. Works for us.

Start checking the connections at cord and breaker for heat. Excess heat means a bad connection.

May be a sign of a bad electrical connection somewhere. Heating up and causing further voltage drop.

It's lower than I would like to see but 109 is still within 10%, although for compressor longevity you don't want to see AC voltages much lower than that.

Hi,

It would be best to continue to monitor the voltage. If it drops below 108 when other devices are on it may be best to not use them.

109 is not a problem.