Forum Discussion

rvnutts's avatar
rvnutts
Explorer II
Jun 19, 2021

Generator and an EMS

Hi all, we are new to dry camping. We have a Progressive Industries EMS. When i plugged the EMS into the generator, it would not power the rig. However, it did power the rig without the EMS. Note: the EMS threw up a PE code, open ground. I guess my question is, no EMS with a generator? Thanks!

13 Replies

  • Sounds like the neutral and ground are not bonded. There needs to be a direct connection between neutral and ground.
    Get a male 15/20 cord body. Install a jumper between the ground and neutral pins. Plug it into a receptacle.
  • Its a portable onan 3700. Maybe the EMS is not needed on the portable generator??? We always use it when plugging into shore power.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,260 PostsLatest Activity: Jun 07, 2025