Pit Probe Shows Temp Without Probe Connected


 
K

KGeier

New member
This is my first Heatermeter build and I'm pretty happy with how things turned out. I have it up and working with the WiFi and can connect to it remotely. The only problem I'm having is that the Probe 0 or Pit Probe is off. First it shows a temp of 88 degrees when the probe is not connected. When I connect the probe it goes up to 90 degrees in room temp. Probe 1 and 2 work like a charm. I've switched the probes around to ensure I do not have a bad thermistor. I'm using thermistors for Probe 0, 1, and 2.

I've tried reading through this forum, but have struck out.

Any ideas?

Thanks.

Kevin
 
I assume its not a thermocouple. But, make sure you have the correct probes, make sure you have the correct resisters , 10k , 100k. Post some close up pictures of the board
 
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