My Mighty Jet has no issues while running but once I place it on feeding mode, it will not turn back on and give an E5 error code. I looked into this and E5 means seized propeller. If I unplug the pump and plug it back in, it will then turn back on as normal. I just recently cleaned the impeller. I have seen that people put some type of petroleum jelly on the magnetic part of the impeller. What are your thoughts on that or other solutions?