I rectly purchased a penny fortune scale and it is having some issues. Sometimes It displays the correct weight but it doesn't tell me my fortune or vise versa. Only sometimes does both the fortune and the weight work. Is this a common problem? Could it possibly need to be oiled? I opened the front of the machine and nothing looked like it was out of place, but I wasn't able to open the back compartment (not sure if I have the key) which would probably give me a closer look at the fortune compartment.
Thanks for your help!