Navien E012 Error Code
Flameloss Cleantheintakeairfilter.SeetheOperationmanual. ·Ensure that the electr
Source: npn-199e__navi-npn-199e-english-iom.pdf
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Other Navien Error Codes
Ignitionfailure Ensure that the main gas supply valve is open. E004 Falseflamede
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Abnormal operation:limit control ContactTechnicalSupportat1-800-519-8794. E047 A
Abnormaloperation:dualventuri Contact Technical Support at 1-800-519-8794. E109
Abnormal air pressure ·Ensurethattheexhaustpipeisfreeofobstructions. ·Clean the
Hotwateroutlet:thermostat Contact Technical Support at 1-800-519-8794. openorsho
Cold waterinlet1:thermostat Contact Technical Support at 1-800-519-8794. openors
Cold water inlet2:thermostat Contact Technical Support at 1-800-519-8794. openor
Abnormal operation:water ContactTechnicalSupportat1-800-519-8794. adjustment val
Abnormal operation: circulation External: Ensure that all watersupply and return
Abnormaloperation:flowsensor ContactTechnicalSupportat1-800-519-8794. Error Code