No 110AC without 12VDC connected
2005 Forrest River 26BH TT
Well my original question why my Dometic Fridge and Suburban Furnace did not work when I was hooked to shore power and had batteries removed for replacement ? Owners install manuals state the controls are 12v. So I check my Parallax 7355 and it's Kaput !
My neighbor said his Dad may be able to replace the capacitors (both bulging and leaking some) or I can upgrade the unit to three stage charging, not fry my batteries and leave it plugged indefintly for $$$.
You see I was bad. I had good luck checking the battery water every 6 months until the last 6. I'm not sure the Parallax boiled them dry. I think the Parallax failed and the CO2 detector drained. I don't know.
How long should converter last ? In storage plugged in ? Is there any other inline options to the three stage charging system ?
Thanks and God Bless