Today, not only residents of suburban homes, but also property owners in large cities continue to use an autonomous gas heating system. This is due to the positive features of modern devices, ease of operation and ease of installation.
Among the huge assortment of such products, Navien brand boilers are in demand, but even such devices may have difficulties in working with which error codes will help you. About them and will be discussed below. Despite the fact that the manufacturer gives a rather long guarantee, breakdowns are still possible, they sometimes happen in the system. But, as practice shows, with the right approach, they are easy to eliminate.
Frequent boiler malfunctions
If an error “03” was issued during the operation of the equipment, the “Navien” boiler must be tried to return to normal operation. Any equipment (this may include what is described in the article) sooner or later becomes faulty. This may be due to improper installation or non-compliance with the operating rules. Sometimes damage to the devices leads to poor quality coolant.
In order for the user to determine the reason and make the right decision, the manufacturer has provided for a display on which error codes are displayed. Below are the most common problems that may occur during operation. Many users claim that the most common error is "03". The Navien boiler, however, may issue other codes. For example, the designation "01E" indicates equipment overheating. The number changes to "02" if the coolant level is too low. The same code may indicate that the flow sensor circuit is broken. If, nevertheless, the display shows the error "03", the boiler "Navien" does not receive a signal about the flame. The number "04" indicates that a false flame message has occurred. An open circuit may occur in the temperature sensor, an error "05" indicates this.
In the hot water supply system, certain difficulties may also arise, for example, the sensor circuit may be broken, an error "07" indicates this. Sometimes the fan also experiences problems in operation, the error "09" indicates this, but if the smoke exhaust system is out of order, then you will see the number "10" on the display. The passage sensor sometimes encounters a short circuit problem, in this case the error is indicated by the number "13", but a short circuit or open circuit of the sensor, which indicates incorrect air pressure, will be indicated by the number "27". Control board malfunctions or a malfunction of the entire system can be indicated by the number "15".
More on the error "03"
If you have a problem, which is expressed in the fact that the equipment gives an error "03", the boiler "Navien" should be returned to normal operation. If you notice that the display shows “03”, you can be sure that the device has not received a flame signal. The causes of this malfunction include the lack of gas supply, as well as the breakdown of the ionization sensor. Sometimes there is simply no ignition, or the tap has been closed. In some cases, the grounding of the device is faulty.
To solve this problem, it is necessary to clean the blockage on the flame sensor. If you notice a gray coating on the electrode, then you need to get rid of it. To do this, use fine sandpaper, with which you need to clean the surface.
Recommendations for resolving some problems with basic error codes
If you purchased a gas boiler "Navien", the error "03" is not the only code that can be issued by the display. When this or that code appears, it is necessary to contact specialists for help. They can troubleshoot or advise the consumer. However, some owners try to independently identify the malfunction and bring the equipment into working condition.
For example, if an error "01" occurs, then a decrease in flow or clogging in the heating system can be considered as a reason. Sometimes this is also indicated by the failure of the circulation pump. To independently resolve the situation, it is necessary to check the filter of the heating system for air. The easiest solution is to bleed the plugs. The next step is to check the operability of the pump and coil for resistance. Sometimes the impeller of the circulation pump is damaged.
Solving the problem with the error "02"
In quite a lot of houses today you can find the Navien boiler. Error "03" (how to eliminate it, was mentioned above), occurs as often as error "02". In this case, warm water can flow from a hot tap, which after a few seconds changes to cold. On the remote control at this time, the temperature may rise to a maximum, and then drop sharply. At the same time, users note that everything is normal with the heating system.
The reasons may be:
- lack of water;
- failure of the passage sensor;
- airing system;
- the inability to gain nominal speed with a circulation pump.
Sometimes the heating distribution valve is simply closed. To solve this problem, you should adjust the pressure, look at the resistance of the coil and bleed air from the system. In this problem, as in the above, the cause may be a failed impeller. Before starting the operation of the heating equipment, it is necessary to study the malfunctions of the Navien boiler, the error "03" is not the only problem that occurs during the operation of the device.
If you notice the designation "02" on the display, you can open the distribution valve of the unit, and then disassemble the sensor housing. This will clear the check box. Experts say that in this case, the problem may arise due to air congestion, which is most likely. The water in the circuit is heated, but after air enters, the temperature rises to critical, which gives an error "02".
Solving the problem with the error "10"
Sometimes the Navien boiler gives an error of "03", but in some cases you may notice that the code "10" is displayed. This may occur due to malfunction of the fan. Handsets may be damaged or improperly connected. They should go from the fan coil to the pressure sensor. Sometimes the clogging of the chimney leads to the error "10". However, in some cases, strong gusts of wind can cause the boiler to produce the aforementioned error. Malfunctions can be fixed by replacing or repairing the fan. The chimney should be cleaned, but first check it. The tubes from the sensor must be connected correctly, it is important to avoid kinks, if any.
Extraneous noise without errors
If you also decided to purchase a Navien boiler, the error "03", the reason for which was mentioned above, may occur with you. But sometimes the operation of the equipment is accompanied by extraneous noise, which is not normal, but the display does not produce errors.
When you turn on the hot water, you may hear a buzz. This situation, admittedly, arises quite often. It is due to the fact that the heat exchanger is clogged, this is a consequence of the use of low-quality coolant. If you are faced with such a situation, then the heat exchanger must be replaced, but to begin with, at least just clean it.
Error "05"
One of the most popular on the modern market is the gas boiler "Navien", malfunctions (error "03" may indicate this) can be eliminated independently. For example, if “05” appears on the display, this may indicate a break in the temperature sensor circuit. This indicates that there is poor contact between the controller and the sensor. A short circuit may occur in the same section.
To eliminate the problem, the consumer needs to check whether there is resistance on the circuit from the sensor to the controller. If you find a malfunction, you can replace the sensor. As an alternative solution, a method is used in which you should disconnect and then reconnect the sensor and controller connectors. Sometimes this approach helps.
Problem with lack of hot water
You may find that the boiler does not supply hot water. He heats it for heating as it should, but it doesn’t supply it for hot water supply. The problem in this case is expressed in a three-way valve. There is no need to repair or clean it; the part should simply be changed. This problem is not uncommon, because the normal life of the valve is only 4 years.
Conclusion
When the equipment is in operation, you may also encounter the "03" error on the Navien boiler. What to do in this case, you should now know, as you have familiarized yourself with the information described above. But it is worth recognizing that these devices are economical and reliable. If properly exploited, then difficulties are quite rare. But you can solve them if necessary even without the involvement of service specialists.