Jayco SLX Dometic A/C Fan Speed

[TommyBoyATL]

I have a 2019 Jayco SLX 8
It has the Dometic B59516.7xxx A/C unit and a digital Dometic Thermostat.

The issue I’m having is the fan speed has three setting HIGH, LOW and AUTO.
I cannot tell the difference between HIGH and LOW, Am I missing something?
Is this a wiring issue or setting issue?

Anyone else experiencing this issue?

Thanks

TomB

[Route 66 Traveler]

Mine is a Coleman A/C with a digital thermostat with the same settings. I just leave mine on Auto, which on mine runs the fan at the same speed as if the switch was on Hi. When I switch it to Low it only makes a slight decrease in fan speed. When it’s hot outside I don’t see any reason to run it on Low anyway.

[RichCarter]

I asked my dealer the same question. As I recall, his response was that the air conditioner always run with the fan in high speed. There was a problem found with running low speed, something about the unit icing up. To avoid that, they disabled the low speed setting. I think it sets low speed for fan only mode but I can't remember. I just leave mine on auto all the time.