IDEAL Logic+ Combi 24 Installation And Servicing page 47

49 RetURn tHeRMiStoR RePlACeMent
1. Refer to Frame 45.
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 tabs as shown.
5. Check the operation of the boiler. Refer to Frames 32-36.
4
Thermistor Locator Tab
(with thermistor fitted)
50 iGnition eleCtRode RePlACeMent
1. Refer to Frame 45.
2. Remove the burner. Refer to Frame 48.
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 32-36.
Spark Gap
3.5mm
+
Ideal Logic Combi -
SERVICING
2
Ignition Electrode
g e
e d
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a i g
S t r
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3 m
Installation and Servicing 47