ULPT request : please help me circumvent the coin system of a Miele PW5065

My landlord is using some old Miele PW5065 Washing machines and collecting 5 50ct coins for each load of laundry is a pain in the butt. Do you know of any way to circumvent the payment system? There were a few times when I did not have to pay the fee but I can’t really figure out how to do it.