Review of Performance Tool Tools for Wiring - Digital Multimeter - PT89ZR Video

When your Lippert Ground Control 3.0 #LC358590 has a reading that says "Comm Error" it is referring to the communication between the controller and touch pad. You will need to check your harness to ensure it is connected properly and there…

The 'Comm Errror' message means that communication between the touch pad and the controller has been lost. You'll want to check either end of the connection, making sure the connections are secure and not corroded. You'll also want to…

Often an issue like you stated has to do with the battery not being fully charged. If the battery is even slightly low, sometimes this system is a little finicky. I recommend first charging your battery fully and testing it to ensure it is fully…

I reached out to my contact at Lippert and he said there are a couple of things you will want to look at to try and troubleshoot the blank display on your Level Up touch pad. He said to first remove the pad itself from where it's mounted (keeping…

The Lippert Ground Control 3.0 Electric 5th Wheel RV Leveling System w Touchpad and Remote - 6-Point Set #LC675817 does require adequate power to work properly. I recommend checking your ground connection from your battery to the trailer frame and…

It does sound like the Control Module #LC304136 for the Lippert Ground Control 3.0 Electric 5th Wheel RV Leveling System #LC675817 is the issue on your Salem Hemisphere. Since you have confirmed all the fuses and voltages are correct on the system…

In the picture you sent it appears that the white connector is the one that is actually broken. It looks like the black connector just ripped completely off the board and should be able to be disconnected from the wiring harness and the wiring…

I reached out to my contact at Lippert and they said that it sounds like you just aren't holding the 4 buttons for the reset long enough. It requires 5 seconds, but many people will count to 5 a little too fast and the system won't reset. He…

There are a couple different things to consider. With the Lippert 3.0 Ground Control system on your 2018 Grand Design 311BHS, I confirmed with my tech at Lippert that the voltage test should only be on the battery itself. The healthy battery voltage…

According to Lippert, the #LC421484 isn't compatible with your Level Up Hydraulic Leveling System. The #LC421484 is compatible with the #LC358590 or #LC675817 Ground Control 3.0 or the Ground Control TT automatic travel trailer leveling system,…

If your Lippert Ground Control panel is lit up but not showing anything on the screen I'd first try unplugging it and plugging it back in to see if that clears out any internal errors. If that does not fix the issue the panel would need to be…

The reason you're getting a "COMM ERROR" on your Lippert Ground Control 3.0 Electric 5th Wheel RV Leveling System w Touchpad and Remote #LC358590 indicates that the communication between the controller and the touchpad has been lost.…