The easiest way is to just put some water in the ice mold and see if it kicks a batch out. If it does but don't kick anymore out then water valve issues. If it don't then you need to maybe replace the ice mold thermostat which is easy as pie.
That heater melts the ice and it will blister yer finger. The fancy brain in that IM should measure the capacitance change in the ice mold and shut the heater down though after the ice has been released.
If the compressor is getting hot hot then the relay may be shot and the RCO410 would be the perfect fix. Best way to tell is remove the relay on the compressor and check it.Give it a shake and see if tiny relay particles fall out. It oughta make a thunk noise (sliding start switch) no noise at...
I can tell you just what to do. The pilot safety feature has an ODS (oxygen depletion sensor) that detects low oxygen in the room. The problem is dust and cobwebs get into the ODS chamber and causes the problem you are describing. I have fixed many of these over the years using shop air or a...