The blower motor, an ignition module/sensor, cracked heat exchanger. 

Zero issues and the 9v battery has lasted almost a year at this point.

The course forces you spend the required amount of time per module.

The homes are old, but if my prediction is correct, a larger percentage of them will be rehabbed over the next decade.2) Imperial Beach is the cheapest Beach front in the US for at least 400 miles.3) Salton Sea area (probably Imperial County and not San Diego county) due to the minerals that are being extracted for batteries. 

We’re in FL and when it’s super hot outside- but cold inside with the AC, condensation builds up in the battery pack and shorts it out.

I replace ignition systems (module, plugs, and wires) every 100k miles.

@Jean Bolger  when I had my HML shop I had an Accurant account and they had a mortgage fraud detection module.. you can't believe those folks that made loan requests form me and I ran them through that and they were not what they represented... the module had a speedometer green was good yellow needed more verification and RED was bad .. public records indicated all sorts of issues.

Very clear, simple, and convenient.The program consists of 6 modules, which are highlighted through short mini video lessons.

This camera has a solar panel to keep the battery charged.

There are new developments, like the new Jeep plant going in where all of the batteries for the electric Jeep will be made.