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No condensation produced from my Navien NCB-180E

hotsauce
hotsauce Member Posts: 20
My Navien NCB180E combi has stopped producing water flow from the condensation drain tube. it used to oroduce a half gallon a month. Is something plugged or is there a filter i should be checking?

Comments

  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 7,513
    1/2 gallon a month? that is not much. How do you know this? Does the drain spill into a bucket that you empty manually?

    If there is very little condensation, then maybe there is less due to the air intake. the change in season may provide different conditions resulting in less condensation.What is connected to your boiler? indirect water heater? baseboard radiators? cast iron radiators? Radiant floor tubing?
    Edward F Young. Retired HVAC ContractorSpecialized in Residential Oil Burner and Hydronics
  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 7,513
    Page 17 of this operating manual https://www.navieninc.com/downloads/ncb-e-manuals-user-information-manual-en has the maintenance procedures recommended by the manufacturer
    Edward F Young. Retired HVAC ContractorSpecialized in Residential Oil Burner and Hydronics