Most of the thermocouples for thiese units are expensive and come from Italy. 99% of the time they are NOT the problem. Dust gets into the heater over the summer and weakens the pilot safety. Flush the pilot with rust buster. Let it dry and vacuum out the ceramic blocks. I recently tuned a vent free heater up. Took some photos: Vent free heater tune-up Try a $2 bottle of rust buster before investing in a $45 thermocouple. Let me know>
If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61
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Most of the thermocouples for thiese units are expensive and come from Italy. 99% of the time they are NOT the problem. Dust gets into the heater over the summer and weakens the pilot safety. Flush the pilot with rust buster. Let it dry and vacuum out the ceramic blocks. I recently tuned a vent free heater up. Took some photos: Vent free heater tune-up
Try a $2 bottle of rust buster before investing in a $45 thermocouple.
Let me know>
If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61