Take the hose off the back of machine point the end into the sink & turn tap on slowly. If their is a strong flow then tap is ok. Check inside the valve that the hose screws onto and see if the plastic filter is not blocked. If ok then put hose back on the valve & try machine to see if it fills. If no fill and it sounds like it is high pitched and struggling to let water in, then you need to change out the inlet valve and put a new one in.
Lincoln Appliance NZ
March 2020