Ice maker is not working I have a reverse osmosis water filter

Yes, it absolutely can cause the issue. In fact Whirlpool will not warranty any ice maker with a reverse osmosis water filter in line. It causes low water pressure to the water inlet valve. The water inlet ( Solenoid ) valve needs the correct water pressure to seat the valve properly. With low water pressure the valve will not open or close properly and with low water pressure it will freeze the inlet tube to the ice maker. The pressure of the water is going in so slow it freezes the tube before the water gets to the ice maker. Matt Ace technician