Vokera Boiler Fault & Error Codes
Has an error code appeared on your Vokera boiler? Then we may be able to help. We've compiled a list of error codes and the potential cause of the issue, so you are aware of what the problem may be.
For a lot of fault codes the issue can often just be resolved by a simple reset, however on occasions it can be trickier. If you are stuck on trying to resolve an issue with your boiler then fill in our short contact form and one of our trusted boiler engineer partners will get in touch with you and offer advice to try and fix the issue remotely.
General Faults & Errors
This section is an overview of all of the types of errors that can occur on a Vokera boilers.
| Fault Code | Fault Image Description | Potential Cause |
|---|---|---|
| _ST | None | Automatically stopped |
| _CL | None | Service is required |
| A01 | X over a flame, next to a bell | Internal fault with ignition failure flames not sensed |
| A02 | Bell | Fault with limit thermostat |
| A03 | Bell | Fault with fan signal |
| A04 | Bell | Water pressure is insufficient |
| A06 | Bell | Fault with DHW thermistor |
| A07 | Bell | Fault with primary flow thermistor, over temperature |
| A08 | Bell | Temperature differential fault with return thermistor |
| A09 | Bell | Flue thermistor over temperature |
| A11 | Bell | False flame |
| A77 | Bell | Fault with thermostat due to low temperature |
| ADJ | None | Calibration |
| ACO | Bell | Service operation |
| P | None | Activated preheating function |
| Blinking P | None | Preheating function running |
| Flame Image | Flame | The flame is on |
| Hours | None | Boiler is in standby |
| 01 | None | Ignition failure |
| 02 | None | Overheated |
| 03 | None | Fan or flue has a problem |
| 04 | None | Water pressure is insufficient |
| 05 | None | Reset your boiler |
| 06 | None | There is an open circuit on the hot water thermistor |
| 07 | None | There is an open circuit on the primary thermistor |