Pecular Heater Controls in Cold Weather
[QUOTE
Roadster 1.5 buttons randomly turning off[/QUOTE]
YES ! I have the same problem. At first it seemed random and baffling. Now I see what's happening, just not why.
NOTE: It only happens in cold weather when the FROST icon , below the speedo, is on, glowing orange !
WHAT HAPPENS IS THIS: When it's cool, I usually have the A/C on as well as the heater. That avoids interior condensation, just like 'Climate Control' in most cars. When the temp gets down to about 35 degrees F and the Frost icon turns on (or if it's already on when I start driving), two things happen:
1) the Heater button turns off, leaving the A/C still on.
2) the Recirculate button TOGGLES (reverses whichever state it was in).
I can reset things, and a minute or two later it happens again.
Again... note that this does NOT happen if the A/C button is not on, and it does NOT happen unless the Frost icon is on.
Wierd. I try to imagin the PEM trying to be doing something to protect itself, but it still doesn't compute.