www.johnsonandstarley.co.uk
27
6.13 Ignition Electrode
Remove the plug cap and the earth wire from the electrode. Remove the
two retaining screws and withdraw the electrode. Replace with a new
unit, ensuring that the gasket is replaced with a new one, or that the
existing gasket reused if it is in good condition.
6.14 Flame Detection Electrode
Remove the plug cap from the electrode. Remove the two retaining
screws and withdraw the electrode. Replace with a new unit, ensuring the
gasket is replaced with a new one, or the existing gasket reused if it is in
good condition.
6.15 Burner
Unscrew the gas joint at the top of the gas cock. Unscrew the fan and
gas/air manifold assembly (3 screws) from the heat exchanger. Unplug the
multi pin plug connections from the top of the control and the fan.
Remove the assembly.
Remove the assembly to allow the burner to be withdrawn from the heat
exchanger assembly. Replace with a new component in reverse order.
Ensure the rotational position of the burner is correct. Replace with a new
component in reverse order ensuring that the grommet sealing the casing
is correctly positioned.
6.16 Main Ignition/Control PCB (CVBC Grey/Red Housing on Gas Valve)
Unplug the multi pin plug connections from the top of the control and
remove the spark detection wires.Unscrew the single retaining screw and
slide the housing off the gas valve electrical connections. Replace with a
new component in reverse order.
6.17 Flue Temperature Sensor
Carefully pull the two spade connectors from the sensor and unscrew the
sensor from the plastic flue hood. Replace with a new component in
reverse order.
