Error 02 - Boiler Navien
This error code signals the absence or insufficient circulation in the heating circuit. This may be due to insufficient coolant in the system. Air entering the system. An open in the electrical circuit of the connection to the flow sensor or failure of the sensor itself.
Error 03 - Boiler Navien
Error 03 is associated with a malfunction in the boiler ignition system. Insufficient gas pressure in the main gas pipeline. Complete lack of gas supply (closed valve). Electrode contamination. Failure of the flame control sensor.
Error 04 - Cauldron Navien
A similar code appears in the event of a malfunction in the electronic control board. A signal passes about the presence of a flame at the moment when it is absent (false signal).
Error 09 - Cauldron Navien
This error often occurs due to a malfunction of the fan. In rare cases, due to a decrease in voltage in the power supply network, a decrease in fan speed occurs.
Error 10 - Cauldron Navien
This code allows you to determine that there is a problem with the removal of combustion products or insufficient air supply to maintain combustion. It may also indicate a possible failure of the air pressure sensor.
Error 11 - Cauldron Navien
Error 11, like error 02, is associated with a pressure drop in the heating system. Only in this case does it refer to a possible depressurization. A leak in the heat exchanger also leads to this error.
Error 16 - Cauldron Navien
This error code appears in cases of overheating of the gas boiler. The reasons for this may be clogging of the heat exchanger channels due to deposits on the inner surface when using hard water. Interruptions in the operation of the pump or its breakdown also lead to a sharp increase in the temperature inside the boiler. The temperature sensor may be defective.
These and other Navien gas boiler error codes are described in detail in the operating instructions. This makes it easier for specialists in a preliminary analysis of the possible causes of problems that arise and helps in deciding what to do in a particular case. Most of the instructions also describe the procedure for troubleshooting. How to fix problems, the user decides for himself. Of course, some causes are quite possible to eliminate on their own. However, it is better to turn to the services of craftsmen with sufficient qualifications and experience in servicing complex gas equipment. If a small problem arises, then it is not a fact that this is not a consequence of failures in the optimal mode of operation of the corresponding nodes.
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