Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Tekmar 371 showing error "Supply sensor short circuit"...no heat to radiant flooring.

Is there a laypersons fix for this error? Thanks much for any help. Only change since last winter is a lot of dust settled on the system over the summer when we had chickens temporarily in the garage.


  • Empire_2
    Empire_2 Member Posts: 2,343
    Na, Chances are that the sensor failed, but Ohm reading to mfg specifications on that sensor can rule that out. I wish I could tell you Yup,....It's the dang Thing o couple......lol. But then I digress... Sensor is more than likely open, but other things need to be checked. Call You local PROFESSIONAL and they can help.