How To Reset a Vokèra Boiler

If your Vokèra boiler has engaged lockout mode, you will need to figure out what the error message means and reset it when

However, every boiler brand has its methods of being reset. If you own a Vokèra boiler, there are some differences between the models and other brands when resetting them.

With Vokèra boilers, several error codes indicate that it has shut down or initiated lockout mode, which requires fixing the problem before resetting the unit.

Some of these codes include:

• A01 – Ignition Failure: The boiler has failed to ignite, possibly due to issues with the gas supply, ignition electrode, or related components.
• A02 – Limit Thermostat Fault: Indicates a problem with the limit thermostat, which monitors the boiler’s temperature to prevent overheating. ​
• A03 – Fan Fault: A malfunction in the fan, responsible for expelling exhaust gases, can lead to unsafe operation and cause the boiler to lock out. ​
• A04 – Insufficient System Water Pressure: Low water pressure in the system can prevent the boiler from operating correctly, leading to a lockout.
• A06 – Domestic Hot Water (DHW) Thermistor Fault: An issue with the DHW thermistor, which measures water temperature, can disrupt the boiler function.
• A07 – Primary Flow Thermistor Fault: Indicates that the water temperature is too high, suggesting a fault with the primary flow thermistor. ​
• A08 – Return Thermistor Fault: High water temperature was detected in the return line, pointing to a possible issue with the return thermistor. ​
• A09 – Flue Thermistor Fault: A problem with the flue thermistor or its counter can affect the boiler’s ability to monitor exhaust gases properly.
• A11 – False Flame: The detection of a flame when there shouldn’t be one, indicating a potential fault in the flame detection system.
• E10 – Flame Lockout: The boiler has shut down due to flame detection or ignition issues.
• E020 – Limit Thermostat: Similar to A02, this code points to a fault with the limit thermostat. ​
• E030 – Fan Fault: Indicates a malfunction with the fan, which is crucial for safe boiler operation. ​
• E040/E041 – Water Transducer Fault: Issues with the water transducer are often related to system water pressure problems. ​
• E060 – DHW Probe Fault: A domestic hot water probe fault can affect water temperature regulation. ​
• E077 – Main Zone Water Thermostat Fault: Indicates a problem with the main zone water thermostat.
• E090 – Flue Gases Over Temperature Probe Fault: High temperature was detected in flue gases, suggesting an issue with the over-temperature probe.

These error codes can differ depending on your boiler’s model and year, so it is always best to check the unit’s manual for the meaning.

Resetting your Vokèra boiler is done mainly to restart the unit and get it out of lockout mode.

Before moving away from error codes completely, Vokèra boilers have several light indicators to help diagnose potential issues.

Vokèra Boiler Lights

Many of Vokèra’s boilers are equipped with indicator lights which can provide users with information about the boiler’s operational status at a glance.

• Red Light On and Green Light Off: This indicates that the boiler has locked out for safety reasons. Common causes include overheating, a faulty pump, or flue gas issues.
• Red and Green Lights On: If both lights are on or flashing, your boiler may be in service mode, have incorrect water pressure, or be experiencing sensor faults.
• Flashing Green Light: A flashing green light suggests either a faulty hot water sensor or that the boiler is in standby mode.

If, after addressing the error code and lights, you want to reset your Vokèra,

As you can imagine, resetting your boiler is usually a straightforward task, but there are some general steps you can follow to ensure you’re doing it correctly.

Performing A Reset Of A Vokèra Boiler

For Vokèra boilers, there are three main reset procedures. These include:

• Vokèra boilers with A reset button (Models include: Vokèra Easi-Heat, Vokèra Mynute)
• Vokèra boilers with a mode selector dial (Models include: Vokèra Linea, Vokèra Compact A)
• And Vokèra boilers with a temperature dial (Models include older units like Unica and Flowmatic models)

Each reset procedure will differ slightly. However, the general steps are ultimately the same.

Step One: Error Code

Before you reset your Vokèra boiler, make sure to take note of the error code. You can do this by snapping a photo or jotting down a note in your boiler’s manual.

Missing this step won’t affect the reset process; it is just in case the issue reoccurs or you need to contact a Gas Safe registered engineer.

Step Two: Reset Boiler

With three different methods to reset your Vokèra boilers, the reset via button is very easy.

To use the reset (usually labelled R) button, press and hold the reset button for 3-5 seconds until the error message stops flashing. After releasing the button, see if the boiler reboots and the error clears.

Depending on the boiler’s age, the reset button might have sunk into the unit, which will mean using a pen to push it.

With the Vokèra selector dial models, turn the selector dial to the reset (or OFF/RESET) position and hold it for a few seconds. This should reset the boiler and clear the error code on the screen.

If everything has gone perfectly, reigniting the boiler will take a minute or two.

After the boiler has returned to its usual state, check that the hot water and heating systems are working correctly.

However, if this has not removed the error code and it has reappeared, you can consider doing a manual reset.

Step Three: Turn Off The Power

While this additional step won’t be in the manual, you might need to turn off your boiler at its power source.

Close to your boiler should be a fuse spur. If you’re uncertain what a fuse spur is, it’s a square white box with a large switch in the middle.

Flip this switch on and off. You should allow a few seconds for the boiler to shut down.

Sometimes, a boiler is simply plugged into a socket, requiring you to flip the switch.

If you cannot locate your boiler’s plug point, try switching it off and on at the distribution board, also known as:

• Panelboard
• Circuit breaker panel
• Breaker panel
• Electric panel,
• Fuse box,
• Or DB board/box.

Once you’ve turned the power back on, your Vokèra boiler should be reset successfully.

But if you still get the same error message, you will want to do some more troubleshooting.

Further Troubleshooting If Your Boiler Fails To Reset

As with everything in life, the simplest tasks can become more complicated. If you’ve reset your Vokèra boiler’s lights and they keep flashing red, you will want to perform a few quick checks:

Identify The Error Code

You only want to reset your Vokèra boiler if it is in lockout mode. Make sure to double-check what the error code means.

Usually, the manufacturer will include a comprehensive list of error codes in their manual.

If you’ve lost your manual or are struggling to find a solid answer, you can do some simple checks before calling in a professional.

Check The Gas Supply

A simple check is to see if your home’s main gas supply valve is fully open. Your home’s gas mains should be fully open.

Another way to check for a gas supply issue in your home is to turn on other gas appliances, such as a kitchen stove.

If you suspect a gas supply issue, contact your gas provider. There might be a local supply issue in your area.

However, if you smell gas, turn off the supply immediately and call for help.

Check Water Pressure

Most Vokèra boilers have a pressure gauge on the front panel as a dial or analog gauge, a digital screen, or, on older models, a physical gauge under the unit.

The ideal reading is between 1.0 and 1.5 bar when the system is cold.

If the water pressure reading is below 1.0 bar, your boiler might need to be repressurised.

On the other side of the scale, if your Vokèra boiler’s reading is too high, above 2.5 bar, you will want to bleed a radiator in your home to lower the pressure.

Check The Power Supply

It could be an electrical issue if your boiler has not turned back on after the reset.

Ensure the boiler is plugged into a working power socket and no circuit breakers have tripped.

For those who turned off their boiler via the fuse spur switch, a fuse could have blown if flipping the switch had not resulted in power feeding to the boiler.

While most of these checks can be completed relatively quickly, if you’re struggling to reset your boiler, we highly recommend calling an expert for help.

Call WarmZilla’s Professionals For A Chat

Rather than struggling to reset your Vokèra boiler, you can call one of our professionals to troubleshoot the problem.

However, if you both discover a more substantial issue, the professional on the phone will suggest sending a Gas Safe registered engineer to your home within 48 hours to reset your boiler.