Benchmark i-mini 30 Installation And Servicing page 41

44 RetURn tHeRMiStoR ReneWAl
1. Refer to Frame 40.
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 29 & 30.
4
Thermistor Locator Tab
(with thermistor fitted)
45 iGnition eleCtRode RePlACeMent
1. Refer to Frame 40.
2. Remove the burner. Refer to Frame
43.
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 29 & 30.
Spark Gap
3.5mm
i-mini -
Installation and Servicing
SERVICING
2
Ignition Electrode
g e
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