E 3 error message?
thestumbler opened this issue · comments
Chris Lott commented
I'm testing one of these as you mentioned, by directly injecting 6.3V DC without mains connected. It seems to be working, except I'm getting a flashing "E 3" on the LCD intermittently. After a brief scan through the code, I can't see right off what generates E3.
-Chris
Andy Brown commented
The relevant source is here. It means an "OC fault" (open circuit) from the temperature sensor. See the table on page 10 of the datasheet.
Chris Lott commented
Thanks, Andy. That did the trick. All's working fine now.
-Chris