| Code | Repair | Meaning | Models |
|---|---|---|---|
| _St | Link | Autostop | New |
| _CL | Link | Call for service | New |
| A01 | Link | Ignition failure flame not sensed Ð internal fault | New |
| A02 | Link | Limit thermostat fault | New |
| A03 | Link | Fan fault | New |
| A04 | Link | Insufficient system water pressure | New |
| A06 | Link | Domestic how water (DHW) thermistor fault | New |
| A07 | Link | Primary flow thermistor fault Ð temperature of water is too high. | New |
| A08 | Link | Return thermistor fault Ð water temperature too high. | New |
| A09 | Link | Flue thermistor or ßue thermistor counter fault. | New |
| A11 | Link | False flame | New |
| A77 | Link | Low temperature thermostat fault | New |
| ADJ | Link | Calibration | New |
| ACO | Link | Service operation | New |
| N/A | Link | Flame on | New |
| P | Link | Preheating function active | New |
| P Blinking | Link | Preheating function running | New |
| Hours | Link | Stand-by | New |
| - | Link | Off | New |
| 01 | Link | Failure to ignite | New |
| 02 | Link | Overheat | New |
| 03 | Link | Problem with fan/flue | New |
| 04 | Link | Insufficient water pressure | New |
| 05 | Link | Reset as described for code 01 | New |
| 06 | Link | Hot water thermistor open circuit | New |
| 07 | Link | Primary thermistor open circuit | New |
| E10 | Link | Flame lockout | Evolve Combi |
| E011 | Link | Extraneous flame | Evolve Combi |
| E020 | Link | Limit thermostat | Evolve Combi |
| E030 | Link | Fan fault | Evolve Combi |
| E040 | Link | Water transducer Ð check system water pressure | Evolve Combi |
| E041 | Link | Water transducer Ð check system water pressure | Evolve Combi |
| E042 | Link | Water transducer fault | Evolve Combi |
| E060 | Link | Domestic hot water probe fault | Evolve Combi |
| 4070 | Link | Fault flow sensor over temperature Ð flow sensor flow/return line probe differential alarm | Evolve Combi |
| E077 | Link | Main zone water thermostat | Evolve Combi |
| E080 | Link | Error with return line probe Ð over temperature outlet or differential alarm | Evolve Combi |
| E090 | Link | Flue gases over temperature probe | Evolve Combi |
| E091 | Link | Clean primary heat exchanger | Evolve Combi |
| - | Link | Water pressure low | Evolve Combi |
| - | Link | Water pressure high | Evolve Combi |
| - | Link | Boiler board communication lost | Evolve Combi |
| - | Link | BUS 485 communication lost | Evolve Combi |
| E021, E022, E023, E024, E067. E088, E097 | Link | Iono alarm | Evolve Combi |
| E085, E094, E095 | Link | Combustion fault/high CO | Evolve Combi |
| E058 | Link | Main voltage error | Evolve Combi |
| E065 | Link | Current modulation alarm | Evolve Combi |
| E086 | Link | Obstruction fumes alarm | Evolve Combi |
| AL10, AL20, AL21, AL26, AL28, AL34 | Link | Try resetting the boiler, if the fault reoccurs you need to contact a heating engineer. | Mynute |
| AL40 | Link | Check the systemÕs pressure and refill if necessary. Reset the boiler, if the fault reoccurs then you need to contact a heating engineer. | Mynute |
| AL41 | Link | Check system pressure Ð refill if necessary. If fault reoccurs, contact a heating engineer. | Mynute |
| AL52, AL55, AL60, AL71,AL73, AL74, AL79 | Link | Contact a heating engineer. | Mynute |
| AL74, AL79 | Link | Reset the boiler. If the fault reoccurs, contact a heating engineer. | Mynute |
Vokera Fault Codes
Welcome to the fault-codes section of this site. The following table or page contains the information required to help repair and diagnose the fault codes being shown on the boiler display. You may be guided through the fault finding sequence or steps, for rectifying your boiler with this fault code. Suggested repair solutions may be provided by a link to a repair page. NB Some fault codes are only applicable to a specific range of boilers only.
Disclaimer: Information on this website is provided for informational purpose therefore we cannot accept liability for subsequent problems. All repair tasks should be carried out by qualified trades people. We may also receive commission payments when you are taken to external websites and complete purchases from third party sellers, once you leave our site, we cannot be held liable for your purchases.