Recent content by 2muchwhine2littlewine

Thank you everyone for your help. I have solved the issue after many failed attempts! For anyone else that is using Unistrut mounted to a Promaster that runs into the issue the source of the whine is resolved by putting duct tape beneath the mounting brackets and the Unistrut where they are joined.

I duct taped and zip tied all the cables to the van roof. Still no luck:(

No, I have tried duct taping all the unused mounting holes in the bottom of the solar panels, but the noise is still present. Not sure if it is actual panels themselves vibrating but have not seen any information on other forums of that occurring.

the entire inverter was installed (without grounding to the car metal) without any noise. Can you elaborate on why I need it grounded to the car metal? I worry that that might lead to issues with the vehicles electrical system and lead to more noise linking the two systems. Also Will Prowse does...

I have thought of that and feel like wind, bumps, and rain on the panels would affect the sound volume and pitch and they dont seem to have any effect I can ascertain :(

my system is disconnected from the car alternator and my understanding alternator whine is that comes through in line with acceleration which this noise is not in line with. house inverter is off and turning it on has no effect on the sound.

No alternator charging for the house battery / 12v fuse box. I currently have no chassis grounding - the house system is floating and I have everything tied back to the battery terminals.

No they were not... if it is the panels any way to get it to stop?

I disconnected the PV entirely and the noise is still present... now I am really baffled.

I will try later today and update :)

The inverter is off - I have not tried driving with it on yet.

I have built out a Ram Promaster van and have a house battery setup using a 200AH LiFePO4 PowerUrus battery, 12v fuse box for lights, fridge, fan, USB chargers, 2*200W rich solar panels in series, and a MPP solar inverter (1000w 12v 110vac MPP Solar off grid Inverter 40A MPPT solar charger...