Tap symbol indicates a water problem.
Check that the water supply to the dishwasher has been turned on.
Check that the water supply hose hasn't bent or kinked.
Check the water supply first, see what you find.
Rinse Aid symbol light indicates low on rinse additive.
Hope this helps?
you could connect the power wire to the other side of the switch
that by ;passes the switch but you will have to turn it off at the wall socket
better to just get a new switch