Forum Discussion

mustanglover32's avatar
mustanglover32
Explorer
Feb 14, 2017

Running A/C with extension cord into 20 amp outlet.

Trying to figure out if what I'm trying to run below is moving too close to the limits of a 20 amp 120V outlet and limits of a 12 gauge extension cord that is 25 feet. Trying to run a 135K BTU A/C ...
time2roll's avatar
time2roll
Nomad
Feb 14, 2017
Verify running voltage is 108+ inside the RV and check for excessive heat at the connections.
Otherwise you are good to go.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,344 PostsLatest Activity: Dec 26, 2025