VOKERA10030505 Printed Circuit board

The Vokera 10030505 is a printed circuit board (PCB) supplied as a service spare for Vokera heating appliances. It is the red board variant, listed by the manufacturer with a "See Notes" reference, which means the board colour and revision must be matched to the unit being repaired rather than ordered on part number alone. The PCB is the control centre of the appliance: it reads inputs from temperature sensors, pressure switches and user controls, then switches outputs to the fan, pump, gas valve and ignition sequence. Because it sits at the heart of the electrical circuit, a failed board usually stops the appliance working altogether rather than causing a partial fault.

• The appliance fails to fire, with no ignition sequence starting.
• The control panel or display gives no response when the appliance is powered.
• The fan, pump or gas valve is not energised when there is a demand for heat or hot water.
• The appliance locks out repeatedly and only clears after a power cycle.
• Visible scorching, burn marks, corrosion or damaged tracks on the board itself.

• Match the part number 10030505 and the red board variant against the board being removed.
• Note the appliance model and serial number so the correct revision is identified.