Bolt plug in charger problems

First a hello to all. I am new to the forum. We bought a 2017 Bolt new on Aug 3, 2017. Best car I have driven. Since we use it mostly for short trips I have only used the supplied 120V charger. I have on occasion, if the battery is low or we are going on a long trip, used the charger boost feature on the driver info screen to increase the charge rate from 8Amps to 12 Amps. The last two times I have used this boost the charger has faulted on me. I disconnect the charger and reduce the charge to the 8 amp level and then it works fine. I have noticed that when the charger faults that the prongs and cord of the charger (the end that connects to the wall) are warm. The prongs are actually too hot to touch. Anyone else have this problem?? I suspect the charger is failing and probably will not be covered under warranty. If this is the case I will buy a faster charger. If this happens any suggestions to the best route to go. I am an electrician and can wire in a 240V circuit for a faster charger. Thank you for your help and suggestions. This is a 2017 premier model with the DC charge ports.