I’ve had my SV06 for a couple of days and it has been working fine. Today I tried the auto bed level and that worked fine too. About 3 minutes after the bed level was completed I got an error message bed temp run away, reset. (or something to that effect) After that the bed will not heat.
So, I got out my multimeter and discovered that there is no continuity in the red + wire going from the controller to the bed. I see no evidence of melting or a fusible link in that line. There is 24 volts coming from the controller to the bed so the problem seems to be limited to that one wire.