Heatermeter v 4.2 food probes quit working


 

Dale Ward

TVWBB Fan
HM has been working great for about a year, last night all food probes suddenly quit working, Any ideas on where to start looking for problem they were working unplugged and cleaned them, I did not get wiring wet plugged back in and none of them work. got out my new backup probes and none of them work, on any of the tree jacks. Power cycled and performed reboot still no response. Thermocouple probe working good.

Thanks
Dale
 
I'd start by ensuring you have 3.3v where it shows on the right side of this pic.

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Did you check to make sure they were turned off in the settings.

The only thing the probes have in common is the ground connection. Other then that, theyou basically connect to the Atmega chip and they have a 100k and 10k resistor connected to each probe
 
Im use custom made water resistant case so using the probe pin header. I could have broke the ground wire. I will test next week time permitting.
Smoke was still successful switched to another HM, like having a backup HM.
 
Checked with meter, found broken ground connection, on pin header cable going to temp probe jacks.
Thanks for the help.
 

 

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