Paul Kierstead
New member
I'm using a heater meter with a thermocouple (from thermoworks). I've done a bunch of cooks with it happily.
Yesterday, during a 12 hour cook, the thermocouple started drifting up high; 30-50 degrees high. It doesn't jump up, it drifts up (looking like the pit is getting hot). After a while (some number of minutes, seems to vary), it will drift down again. At one point it drifted high enough long enough it almost put out the fire; when it drifted down again, it actually triggered the lid open heuristic.
A second thermistor in roughly the same spot showed steady temps, and sneaking a thermapen in there showed the significant temperature difference (and agreed with the thermistor more or less).
I have enabled the ac filtering option.
The day was very wet and rained on and off; there seemed to be no correlation with the readings, and the heater meter (and PS) was protected against the rain.
Any ideas where to troubleshoot? I want to smoke a brisket next weekend but have lost confidence (maybe I can reassign one of the other inputs as being the pit?)
Yesterday, during a 12 hour cook, the thermocouple started drifting up high; 30-50 degrees high. It doesn't jump up, it drifts up (looking like the pit is getting hot). After a while (some number of minutes, seems to vary), it will drift down again. At one point it drifted high enough long enough it almost put out the fire; when it drifted down again, it actually triggered the lid open heuristic.
A second thermistor in roughly the same spot showed steady temps, and sneaking a thermapen in there showed the significant temperature difference (and agreed with the thermistor more or less).
I have enabled the ac filtering option.
The day was very wet and rained on and off; there seemed to be no correlation with the readings, and the heater meter (and PS) was protected against the rain.
Any ideas where to troubleshoot? I want to smoke a brisket next weekend but have lost confidence (maybe I can reassign one of the other inputs as being the pit?)