Smell gas? Leave the property and call the National Gas Emergency line on 0800 111 999

A06

Vokera fault code

Vokera A06: hot water (DHW) thermistor fault

Engineer only

The sensor that measures your hot water temperature has a fault.

What you can safely do

There is nothing you can safely do yourself with this one. Leave the boiler off and book an engineer.

Find a Gas Safe engineer near you Opens the official Gas Safe Register search.

Applies to: Vision and Compact A. Codes can differ between models, so check your manual.

From Vokera's own fault tables. Your model name is usually on the front of the boiler or in the user manual.

Model	Meaning
Vision and Compact A	Hot water (DHW) thermistor fault

What is a DHW thermistor?

It is the sensor that measures the temperature of your hot water (domestic hot water).