Originally Posted by
spudboy
The 12V shop took a look at the chalkiness and thought it was because the panels had got too hot.
They are installed flat on the camper roof on 'rails' that leave about 5mm air gap between the panel and the roof. They suggest this is not sufficient to keep airflow in hot 45 degree Adelaide days, and they've overheated, damaging the surface.
On my replacement panels, I am going to drill 12mm holes all around the sides to promote air-flow, and maybe even mount them on a slight angle to get some convection airflow happening.
How hot is too hot?
The panels have a maximum operating temperature of 85*C secs of the panel (Assuming they are Rich-Solar which is what the home of 12v sell on their website) in this link RS-M100
2014, MY14 Discovery TDV6, Fuji White (2018-Now)
2003, Discovery 2a, Td5 Manual, Zambezi Silver (2012-2018)
2007, Adventure Offroad Campers, Grand Tourer (2015-Now)
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