Which model of wfco do I have?
I’d fix the solar system first. Ours is a kit from AMSolar that I installed myself. Highly recommended.
I’m running 150 watts of solar (one big panel on the roof) with an MPPT controller in the high desert of California. Usually unplugged in storage.
I run one FantasticFan on low to ventilate the Airstream all day. Batteries stay charged and use little water all year round.
Plan to upgrade the OEM stock converter eventually, because on our last trip with shore power available most nights, battery water consumption went up significantly on the old battery boiler fixed output converter. Solar controller also checks temperature at the batteries, and is what I depend on for proper charging nowadays.
Just check battery water levels at least once a month if you have flooded lead acid (conventional) batteries installed.
Rich, KE4GNK/AE, Overkill Engineering Dept.
'The Silver HamShack' ('07 International 22FB CCD 75th Anniversary)
Multiple Yaesu Ham Radios inside and many antennae sprouting from roof, ProPride hitch, Prodigy P2 controller.
2012 shortbed CrewMax 4x4 Toyota Tacoma TV with more antennae on it.