49
Installation and Servicing
SECTION 3 - SERVICING
3mm
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3.13 IGNITION ELECTRODE REPLACEMENT
1.
Refer to Section 3.8.
2.
Remove the burner. Refer to Section
3.11.
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 Section 2.26 & 2.27.
3.12 CONTROL & RETURN THERMISTOR REPLACEMENT
1.
Refer to Section 3.8.
2.
Disconnect the electrical leads from the
thermistors.
3.
Unclip the flow thermistor from the flow pipe
and withdraw it from the boiler.
4.
Unclip the return thermistor from the return
pipe and withdraw it from the boiler.
5.
Reconnect the electrical lead to the new
thermistors and reassemble in reverse order,
ensuring that the thermistor is securely fitted
to the pipe on the thermistor locator tab as
shown.
6.
Check the operation of the boiler. Refer to
Section 2.26 & 2.27.
Ignition Electrode
Spark Gap
3.5mm
4
3
Thermistor Locator Tab
(with thermistor fitted)
5
SER
VICING
Summary of Contents for LOGIC MAX HEAT H 18
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Page 6: ...6 Installation and Servicing...
Page 61: ...61 NOTES Installation and Servicing...
Page 62: ...62 Installation and Servicing SECTION 5 SPARE PARTS...
Page 68: ...68 NOTES Installation and Servicing...