Return Thermistor Renewal; Ignition Electrode Replacement - IDEAL LOGIC Combi 24 Installation And Servicing

47 RETURN ThERMIsTOR RENEWaL

1. Refer to Frame 43.
2. Unclip the return thermistor from the return pipe and withdraw it from the
boiler.
3. Disconnect the electrical lead from the thermistor.
4. Reconnect the electrical lead to the new thermistor and reassemble in
reverse order, ensuring that the thermistor is securely fitted to the pipe on the
thermistor locator tab as shown.
5. Check the operation of the boiler. Refer to Frames 32 & 33.
4
Thermistor Locator Tab
(with thermistor fitted)

48 IgNITION ELECTRODE REPLaCEMENT

1. Refer to Frame 43.
2. Remove the burner. Refer to Frame 46.
3. Unplug the ignition lead from the electrode.
4. Remove the earth lead from the ignition electrode.
5. Remove the 2 screws holding the ignition
electrode to the combustion chamber.
6. Remove the electrode.
7. Fit the new ignition electrode, using the new
gasket supplied. Check dimensions as shown.
8. Reassemble in reverse order.
9. Check the operation of the boiler. Refer to Frames
32 & 33.
Spark Gap
3.5mm
40
SERVICING
2
Ignition Electrode
g e
e d
h t
a i g
S t r
m
3 m
Ideal Logic Combi -
Installation and Servicing