Low amps from solar panels

bcbob wrote:
I have 2 Renogy 100 watt solar panels flat mounted on my motor home.
19.9 volts from panels to charge controller with a 30 amp inline fuse between panels and CC. Charge controller is a 30 amp PWM. My question is.....the panels can produce up to 5.62 amps each, but are now only producing between 2-4 amps in mid day full sun. Any suggestions on what can be done short of getting on the roof? The volts coming from the panels seem OK, but the amps are way low. Up until a few days ago I was getting between 9-10 amps. Panels are in parallel.
When I remove the inline fuse my amp meter will read the same as the CC.

You might get 5.5 amps from panel if the panel was portable, and aimed directly at the sun. Laying it flat on the roof, where it can get dusty and dirty, will not produce anywhere near the rated amperage. Clean panel with windex and aim directly and the sun, and see if in the late morning you are getting rated amps, when battery charge is low.

100w is nowhere near enough for 4 batteries.