So, its now 2 years later (the unit is about 5 years old) and I now have mulitple failures on the piece of crap.

According to our pool company:

1) Pilot module is out and needs to be replaced.
2) Wiring is shot, probably due to flame-ups
3) The bottom spreader pan is rusted almost completely and needs to be replaced.

Total tab to fix this $2700 heater -- $1300 bucks.

NEVER EVER buy a RayPak.

- A very upset owner...