When you turn it on it looks normal 50% of the time. The rest of the time the yellow lights immediately go up to 4.
If you set a temperature the light stays there and it just idles like it is about to heat up but never does.
For some reason setting it to 7 makes all 7 lights stay stuck on.
Woah! Half the time it's just fine, the other half wonkers? Important detail, why? What's the missing factor?
What you're describing is almost certainly (anything is possible?) not anything to do with heater, sensor and most probably the battery (subject to what you say about the common cause of the fault conditions). An honest to God hardware fault even?
How do you 'fix it' (that is get going again)? How many times in a row does it work/fail?
One sneaky one to keep an eye out for if it really is a hardware fault. Intermittent faults in Silicone usually start life as leakage current or gain issues getting marginal. Both respond to temperature. Often putting such dogs in the freezer is a help here, most such problems are better frozen than hot. Sometimes gain ones run the the other way. Noise immunity often tracks temperature as well. You can them, also, put your soldering iron on the bodies of the parts for several seconds (you get a feel for how long), directly over the die, to ID the culprit.......for all the good that will do.
Given the premium guys put on the m107 ceramic bowl you might consider shifting it over to a newer chassis? My guess is it's still just fine.
Too bad it's not battery related (or is it?).
My first Solo went faulty... due to my current living situation i just recycled it having had a happy while with it and i went ahead and bought a new one.
Bummer. Your call, of course, I'm sure you made a sound one.
It is, in the end, only a tool. Tools wear out. Yeah, we get attached to them sometimes, but sometimes that just gets in the way of reality and common sense. You 'got your money's worth'? Time to move on.
I hope you enjoy the next one. More, if possible?
Regards,
OF