Many homes are equipped with gas boilers, which guarantee a constant supply of hot water and warmth. They occasionally run into problems, though, just like any complicated system. Knowing what these problems are can help you avoid discomfort, expense, and wasted time. Error codes are one way boilers convey issues to one another. These codes may appear mysterious at first, but they are the boiler’s method of alerting you to a problem. We will decipher the error messages of the most popular gas boilers in this guide to assist you in troubleshooting efficiently and potentially preventing the need for an expensive repair.
On a chilly winter’s evening, let’s say your boiler decides to act up and shows you an error code that you have never seen before. It can be extremely upsetting as well as a little scary. But do not worry! Gaining an understanding of the meaning of these error codes can greatly improve situational management. If you can decipher these messages, you might be able to fix the problem on your own or give a technician more precise information if necessary.
Error codes are built into contemporary gas boilers to make troubleshooting easier. These codes might sound like a foreign language, but they are essential for accurately and swiftly diagnosing problems. The first step in restoring your heating and hot water to normal is to decipher these error messages. From straightforward solutions you can do on your own to more complicated issues needing expert assistance, this process can help.
Understanding the meaning of these error codes enables you to take the appropriate action to quickly fix the problem. You can use this guide to diagnose the issue and, in many cases, resolve it without the assistance of a technician, so don’t panic or feel helpless. You’ll be more equipped to handle any boiler problems that arise and make sure your house stays warm and cozy, especially during the winter, by becoming familiar with the most frequent error codes.
| Error Code | Meaning |
| E110 | Insufficient pressure in the system |
| E125 | Problem with the circulation pump |
| E133 | Issue with the gas supply |
| E168 | Ignition failure |
| E319 | Flame not detected |
Many homes rely on gas boilers for insulation and heating, but when error codes pop up, they can be quite bothersome. You can save time and money by being aware of these error codes. We interpret these codes in plain English in our article, "Error Codes of the Most Common Gas Boilers and Their Meaning," to make it simple for you to diagnose and, in certain situations, resolve the problem on your own. Understanding the meaning of each error code will help you troubleshoot more successfully and, if necessary, seek expert assistance quickly.
- What is a gas boiler error?
- Variants of error codes and measures for their elimination
- Vailant boiler: errors
- Proterm boiler errors
- Video on the topic
- Gas boiler does not work | How to correct errors in the use of the boiler yourself?
- Boiler Protherm Jaguar JTV 24 error F04
- How to fix error E 01 (no flame) on Immergas boilers?
What is a gas boiler error?
Boiler models and brands all have their benefits, but trouble-free operation is not guaranteed when operating. The manufacturer of the equipment tests every potential boiler failure and programs it into the diagnostic system based on the information on the codes that are shown on the working panel. Comprehensive steps can be taken to repair the boiler’s main or auxiliary equipment once the cause of the failure has been identified.
Boiler equipment errors are not standardized; instead, each manufacturer sets its own coding sequence, leading to chaos in this area. For coding, however, it is generally accepted to use digits from 0 to 100 and Latin letters beginning with "E" or "F."
The boiler’s technical documentation, which is typically provided in tabular form with an indication of the error, the reasons for failure, and recovery procedures, specifies how codes should be interpreted.
Variants of error codes and measures for their elimination
Certain boiler models come with an equipment operation diagnostics system even though they lack an LCD display. The unit panel’s LED lights change color or flash to indicate a malfunction. The technical documentation decodes their variants.
The most popular boiler equipment models and their corresponding codes are listed below; this list will be helpful to those who choose to troubleshoot the issue themselves.
Vailant boiler: errors
| Code cipher, reset | Source of failure Vailant boiler |
|---|---|
| F00 | Network T meter does not function on the supply side. Probable source of failure: no power supply, NTC plug not connected correctly, line breakage, faulty operating board of the CU. |
| F01 | Mains T sensor on the return is not functioning. Probable source of failure: no power supply to the meter, NTC plug is not properly connected, line breakage, faulty operating board of the CU. |
| F10 | Short-circuit in T sensor mains on supply line. Probable source of failure: NTC plug not working, supply line breakage. |
| F11 | Short-circuit fault in the network Meter of network T on the return side. Probable source of failure: NTC plug not working, power line breakage. |
| F22 | Boiler stopped in emergency by parameter "water pressure low". Probable source of failure: control sensor not working, leakage from heating system, pump for circulation in the network not working, faulty operating board of CU, broken power supply line. |
| F23 | Boiler stopped in emergency by parameter "high water temperature drop". Probable source of failure: Pump or T meter not pumping, circuit blowing out, NTC installation fault, supply or return reversed. |
| F24 | Boiler stopped in emergency by parameter "high T rise in the circuit". Probable source of failure: pump does not function, leakage in the network, incorrect operation of the non-return valve due to poor installation. |
| F25 | Boiler stopped in emergency by parameter "high flue gas temperature in the flue gas path". Probable source of failure: temperature sensor does not function, broken plug or power supply wire integrity (STB). |
| F26 | Gas shut-off valve not functioning. Possible causes: no power supply to the servomotor, the board does not work due to incorrect installation, broken wires or short circuits in the circuit, servomotor does not work, faulty operating board of the CU. |
| F27 | Emergency stop of the boiler by the parameter "no flame in the furnace" protection. Probable source of failure: malfunction of the control side due to moisture ingress, flame control sensor does not work, cutoff valve does not work. |
| F28 | Failure during boiler firing. Causes: Gas meter not working, pressure switch failure, gas mains blowing, low pressure in the mains, shut-off mechanism (TAE) not functioning, condensate outlet network clogged, mismatch between gas burner and ET fittings, valve not functioning, plug incorrectly connected in the CU board, broken circuit, igniter system failure, ionization circuit integrity broken, no earthing, electronics unit defective. |
| F29 | No ignition of the boiler, after gas cut-off. Probable source of failure: gas recirculation line broken, condensate line clogged, no earth connection, ignition transformer not working. |
| F32 | The fan for air supply to the burner does not work. Probable source of failure: fan plug not plugged in or to electronic board, control circuit wire break, Hall sensor not working, control board not working. |
Proterm boiler errors
| Code code code | Source of Proterm boiler error |
|---|---|
| F.0 | Low supply temperature of the heating network 130 °C. Failure node: short circuit on the T sensor line on the supply, meter plug shorted to ground, short circuit in the T sensor supply line or defect in the T sensor line. |
| F.11 | High temperature in return network> 130 °C. Faulty unit: short-circuit in the supply T meter line, sensor plug short-circuited to ground, short-circuit in the supply line of the T meter or its defect. |
| F.15, F.16 | Short-circuit in the circuits of external and internal flue gas sensors. Failure unit: meter malfunction, communication line breakdown or control unit failure. |
| F.20 | Boiler unit overheating, boiler shutdown by sensor protection parameter on temperature limiter. Failure unit: limiter malfunction, communication line breakage, short circuit, T meter malfunction on the coolant supply. |
| F.22 | The device is stopped in emergency by the parameter "no medium pressure" in the heating system Baxi boiler: error codes |
| Code code code | Baxi boiler faults |
|---|---|
| E01 | It is impossible to perform the ignition of the boiler. Possible causes: – Gas appliance malfunction; – gas mains leaking; – low gas line pressure; – piezo igniter not working; – control board failure. |
| E02 | False operation of the thermostat. Possible cause: sensor fault, short circuit on the supply line, broken communication line or control unit failure. |
| E03 | Control unit board error. |
| E04 | Flame breakage during ignition, boiler start-up is impossible. Possible causes: low pressure in the gas line, gas line is bled, no grounding of the boiler unit. |
| E05 | T sensor in the supply line is damaged. Possible causes: meter not working, cable break, control board faulty. |
| E06 | DHW temperature sensor damaged. Possible causes: sensor is not working, cable breakage, faulty control board. |
| E07 | Faulty flue gas T meter. Possible causes: meter not working, broken cable, control board defective. |
| E22 | The unit is stopped by the parameter "no voltage in the network". |
| E25 | The boiler is stopped by the parameter "there is no water pressure in the network". Cause: pump blocked, insufficient pump power, system is blocked, no water in the heating circuit. |
| E26 | The unit has been stopped in an emergency by the parameter "high supply water temperature". Reasons: blocked pump, low pump power, system is blocked, no water in the heating circuit. |
| E40 – E41 | The device is stopped by the parameter "no draught in the boiler". Causes: flue gas meter does not work, power line to it is broken, working board is defective, short circuit, wrong wiring diagram of the sensor. |
For homeowners to guarantee the effectiveness of their heating systems, it is essential to comprehend the error codes associated with gas boilers. These error codes serve as a reference, assisting you in locating and possibly resolving problems with your gas boiler. Knowing these typical error codes will help you troubleshoot issues more efficiently and save time and money.
Among the most frequent error codes associated with gas boilers are "F22," which denotes low water pressure, and "F28," which denotes an ignition issue. It’s critical to refer to your boiler’s handbook or get in touch with a qualified technician as soon as you come across these error codes in order to promptly resolve the problem. Ignoring these error codes may eventually result in more serious issues.
Furthermore, error codes like "F75" usually point to a pump issue, whereas "F61" typically indicates a gas valve issue. Gaining a better understanding of your heating system and facilitating more effective communication with a technician are two benefits of knowing the meaning behind these error codes.
Performing routine upkeep and repairs can aid in avoiding numerous error codes. You can prevent potential problems from getting worse and keep your gas boiler operating efficiently by scheduling yearly maintenance checks. Additionally, having enough insulation in your house can improve the efficiency of your heating system and lower the chance of error codes.
In conclusion, it’s critical for homeowners to become familiar with the error codes associated with the majority of gas boilers. Understanding the meaning of these error codes will improve your ability to troubleshoot problems and interact with technicians. Understanding these error codes and making routine maintenance investments will help you maintain a warm and cozy house all year long.
