Hi, I have a few of the a419 dig thermostats from NB, and the most recently bought one is behaving poorly. Any suggestions on where to go for this.
I noticed that it defaults to BIN setting, which should require me to wire the top of 3 screws and unwire one of the others, which of course I have never done and isn’t currently wired anyway. It stays in BIN no matter what I do with the jumpers.
That said, assuming I set the offset for this mode to 1, I should still have considerable control over temperature ranges (using with a lizard heater pad and carboy insulation). however, on every fermentation I have used this one on, it lets the temperature slide well below its set range and offset (it is properly set to heat/cut in 1 degree below range set). I have tested this back to back with another a419 between 2 separate fermenters, and it is definitely the thermostat as the other one, when put in place of it, acts just fine. The other one isn’t erroneously defaulted to BIN, but once again, with the offset set properly as per the manual, it should still be possible. Every setting besides the Temperature itself is set to 1.
The oddity is that when it is letting the temperature slide without limit, it still shows green light on (e.g. power on to connected device).
The first time I used this thermostat was last week and it has not worked properly for any sustained period (e.g. more than a day).
Am I missing something or does this sound like a defective thermostat?
