Whirlpool adp 2966 f4 problem

my dishwasher has been flashing f4 for a while and not really cleaning my dishes. i found out that f4 meant that there was a blockage, so i pulled out the machine and the outlet pipe was kinked up , so i straightened it and i put the machine on, it sort of worked- it heated up the water ( which i think it hadn't been doing) and it went through most of the cycle before it flashed f4 again. i think everything had been washed not rinsed. now it just flashes f4 all the time.
foolishly, i decided to put a straightened out coathanger down the outlet tube to see if there was a blockage there. unfortunately the coathanger is now stuck . is it possible to take the waste outlet tube out of the machine to get the coathanger out?

i would really appreciate any help you could give me. thank you very much