Vokera Fault Codes

Select a fault code to see its meaning, common causes and how to fix it.

A01 The A01 code appears when your Vokera boiler attempts to light the burner but either fails to ignite or cannot confirm… Read more →
A02 The A02 code on a Vokera boiler means the safety limit thermostat has triggered a protective shutdown. This thermostat… Read more →
A03 The A03 code appears when the boiler's printed circuit board (PCB) detects a problem with the fan's tacho signal —… Read more →
A04 The A04 code on a Vokera boiler indicates that the system water pressure has dropped below the minimum level required… Read more →
A06 The A06 code indicates that your Vokera boiler has detected a problem with the DHW (domestic hot water) thermistor —… Read more →