43
59970LTGBW7H027a
2x
59970LTGBW7H028a
6
4
5
4x
1
2
3
59970LTGBW7H027
59970LTGBW7H028
2. Maintenance of the ignition/ionisation electrode
•
Disconnect the earth wire from the electrode mounting
plate.
•
Release the two screws on the electrode and remove the
assembly.
•
Inspect, clean re-gap or replace the electrode,
see par
3.1.3
.
•
Do not over tighten the screws when replacing.
3. Dismantling the front plate of the heat exchanger
•
Release the ignition transformer mounting plate and remove
it completely.
•
Disconnect the electrical connection on the gas block.
•
Release the union nut from the gas pipe on the inlet to the
gas block.
•
Disconnect the electrical plug on the back of the fan, so it
becomes accessible.
•
Release the four nuts on the heat exchanger front plate
•
Carefully pull the front plate assembly c/w fan, gas block,
venturi pipe and burner unit away from the heat exchanger
by approx. 10 cm.
•
Remove the front plate assembly completely.
