Understanding Common Vokera Boiler Fault Codes
Common Vokera fault codes

Vokera is a reputable brand in the heating industry, known for manufacturing reliable and efficient boilers. Like any mechanical system, Vokera boilers can encounter faults or errors that may disrupt their normal operation. When a fault occurs, Vokera boilers are designed to display specific fault codes on their digital display or control panel. These fault codes are alphanumeric combinations that indicate the nature of the problem.
It is important to note that fault codes can vary depending on the specific Vokera boiler model. While some fault codes may be similar across various models, others may be unique to a particular model or generation. Therefore, it is crucial to consult the user manual or contact Vokera technical support to obtain accurate and specific information for your particular boiler model.
Fault codes are designed to assist homeowners and heating engineers in identifying the source of the problem. By understanding these fault codes, you can provide useful information to a qualified professional when seeking assistance. This can expedite the troubleshooting process and help resolve the issue in a timely manner.
Here are a few common fault codes that may occur in Vokera boilers:
1. Code 01: No ignition
This fault code indicates that the boiler has failed to ignite. Possible causes include gas supply issues, a faulty ignition electrode, or a defective Printed Circuit Board (PCB). A qualified heating engineer will need to assess and rectify the issue.
2. Code 03: Water pressure sensor error
This fault code suggests a problem with the water pressure sensor. It may indicate low water pressure in the system, a faulty pressure sensor, blockages, or water leaks. It is important to address water pressure issues promptly to ensure the proper functioning of the boiler.
3. Code 05: Fan or air pressure switch fault
This fault code indicates a problem with the fan or air pressure switch. It could be caused by a faulty fan motor, blocked air intake or exhaust, a defective pressure switch, or ventilation issues. A trained engineer will need to thoroughly inspect and address the underlying cause.
4. Code 09: Safety thermostat activated
When this fault code is displayed, it means that the safety thermostat has been triggered due to overheating. Potential causes include restricted water flow, a faulty safety thermostat, or circulation issues. A professional should investigate and resolve the problem to prevent further overheating.
5. Code 10: PCB fault
This fault code points to a problem with the Printed Circuit Board (PCB). It could indicate a defective PCB, a wiring issue, or a software malfunction. Expert help will be required to diagnose and rectify the issue.
These are just a few examples of Vokera boiler fault codes. Remember, it is important to consult your specific boiler's user manual or contact Vokera technical support for accurate and detailed information tailored to your model.
When encountering a fault code, it is crucial to follow proper safety procedures. If you are unsure about performing any troubleshooting steps or if the fault persists after attempting basic troubleshooting, it is always recommended to contact a qualified heating engineer or Vokera-approved service provider for professional assistance.
Regular maintenance and servicing of your Vokera boiler can help prevent faults and ensure its optimal performance. Additionally, adhering to the manufacturer's recommended maintenance schedule and seeking professional help when needed will prolong the lifespan of your Vokera boiler and maintain its efficiency.
Overall, understanding Vokera boiler fault codes is essential for identifying and resolving issues promptly. By familiarizing yourself with these codes and seeking professional help when required, you can ensure that your Vokera boiler operates safely and efficiently throughout its lifespan.
1. Code 01: No ignition
- Possible causes: Gas supply issues, faulty ignition electrode, defective PCB.
2. Code 02: Flame loss during operation
- Possible causes: Faulty flame detection electrode, gas supply issues, blocked flue or ventilation, defective PCB.
3. Code 03: Water pressure sensor error
- Possible causes: Low water pressure, faulty pressure sensor, blockage in the system, water leak.
4. Code 04: Overheat lockout
- Possible causes: Blocked heat exchanger, faulty temperature sensor, inadequate circulation, pump failure.
5. Code 05: Fan or air pressure switch fault
- Possible causes: Faulty fan motor, blocked air intake or exhaust, defective pressure switch, ventilation issues.
6. Code 06: Flow thermistor fault
- Possible causes: Faulty flow sensor, wiring issue, defective PCB.
7. Code 07: Return thermistor fault
- Possible causes: Faulty return sensor, wiring issue, defective PCB.
8. Code 08: System pressure too high
- Possible causes: Faulty pressure relief valve, overfilled expansion vessel, excessive water pressure.
9. Code 09: Safety thermostat activated
- Possible causes: Overheating of the boiler, faulty safety thermostat, circulation issues.
10. Code 10: PCB fault
- Possible causes: Defective PCB, wiring issue, software malfunction.
11. Code 11: Gas valve fault
- Possible causes: Faulty gas valve, wiring issue, gas supply problems.
12. Code 12: Ignition lockout after three attempts
- Possible causes: Gas supply issues, faulty ignition electrode, defective PCB.
13. Code 13: Flame loss after five attempts
- Possible causes: Faulty flame detection electrode, gas supply issues, blocked flue or ventilation, defective PCB.
14. Code 14: Flow temperature high limit exceeded
- Possible causes: Blocked heat exchanger, faulty temperature sensor, inadequate circulation, pump failure.
It is important to note that this is not an exhaustive list, and there may be additional fault codes specific to certain Vokera models. If you encounter any of these fault codes or if your boiler is displaying a different code, it is recommended to consult the Vokera boiler manual or contact a qualified heating engineer for further assistance.