12 vdc panel

[PC Conner]

Prepping for a weekend trip (leaving Sunday) 27' FBQ FC, put an on/off switch for my TPMS, check and fill batteries. I disconnected the battery to do this and reconnected it.
I have solar to keep the batteries charged, all DC lights worked when I went in the trailer.
Then, go to bedroom to remove and clean the overhead filters.
While there, I heard a faint clicking coming from the passenger side front corner. Lifted the bed, gets much louder.
Then check at the front storage, the 12VDC PANEL is making the clicking sound.
I switched battery from Use to Store. It stopped. Then, a bit later, it started again. Seems to click with battery in Use or Store position.
Removed the panel in the storage area to get better look at the 12VDC Panel.
Unplugged the wire from the panel to the outlet. Clicking continued.
Clicking sounds a bit like morse code: click...click.click...click...click.click, etc.
Does anyone have a similar experience, looking for some insight.
THX in advance

[jeffmc306]

You’re almost there - pull the cover off the 12V box and see what’s clicking. Our 2019 27’ Globetrotter is probably similar to yours. I replaced the factory Atkinson solar controller which is located in the box. I thought it was solid state and shouldn’t click but you never know.

See what’s inside the box that might be the source of the clicking. NOTE: There is a circuit breaker in the top left of the photo below. On the back of the cover you’ll find a wiring diagram that should help identify what the breaker is protecting.

[GMFL]

The clicking sound is most likely the relay in the PWM solar charger. It’s basically an on off switch.

[PC Conner]

UPDATE: When I went out to the AS this afternoon, no clicking. Not sure if it got resolved or completely broke. Good news, everything seemed to work.
Thanks for your help.
pc