any ideas how to do a hopper dump on a hi lo poker machine. no dump switch at cashbox or anywere in machine.

ive about 30 in it but hopper problem keeps coming up

refill key in and onto mech refill put pounds into coin mech and they go into hopper and clears problem tho reverts back to it now and again. im guessing it thinks hoppers full

mech level reads 0100 auto refill 0000 level 0416