H400 SF, then L0, then A0

May 5, 2015
10
Texas
Everything has been perfect.
Out of the blue, I get a SF code

I stupidly start taking out sensors and cleaning them all off

Still get SF

I replace the thermistor and start getting LO (or is it L0) and then RO (or is it R0)?

Anyway.. the SF is gone I still have most of the removable panels off the heater.
I doubt that multiple things failed at the same time but I will own this one dumb butt move I made.

Pretty sure I have gotten the limit resistors confused and also the plugs..

I should have taken a photo, labeled them, etc.... Is there a way to know which goes on top and which goes to the plug w/ the blue wiure versus the plug with the red wire?

Is there any combination of screwing these 2 sensors up that would give either of these 2 errors I am seeing.
Is it possible the heater knows all of the panels are off and it has some sort of failsafe preventing it from starting?

I really should pay more attention to these things.
 
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.