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9.7.1
Checking the electrodes and cleaning the heat exchanger
CAUTION
Risk of burns due to hot surfaces!
Individual components of the appliance can become very hot even after
being shut down for a long time.
▶ Allow the appliance to cool down before carrying out any work.
▶ If necessary, wear protective gloves.
NOTICE
Material damage due to chemicals
Using chemicals during the cleaning of the heat exchanger assembly and
associated parts or carrying out maintenance can damage the sealing
components. This can cause exhaust gas to escape during operation.
▶ Do not use chemicals to flush the heat exchanger assembly and
associated gas carrying components.
CAUTION
▶ Wear a face mask and protective gloves during cleaning work.
▶ Use a vacuum cleaner with a good dust filter.
▶ Clean the heat exchanger with a soft brush.
An optional cleaning kit is available. Should the cleaning kit not be used,
care must be taken to protect the heat exchanger insulation during
service and maintenance.
Refer to figure 73.
▶ Disconnect the fan's mains cable [3].
▶ Disconnect the cable [2] from the connector.
▶ Disconnect the ignition cable from the ignition transformer [1].
▶ Disconnect the temperature limiter cable [4].
4
Fig. 73 Disconnect the electrical connection and condensate hose
[1]
Ignition cable
[2]
Electrical connection of the ignition transformer
[3]
Fan electrical connection
[4]
Temperature limiter cable
Greenstar 1000 – 6721835943 (2023/08)
Refer to figure 74.
▶ Disconnect the ignition cable [1] from the electrode set.
▶ Disconnect the gas hose [2] from the Venturi.
2
Fig. 74 Pull off gas hose from venturi and ignition cable from the
electrode set
[1]
Ignition cable
[2]
Gas hose
Refer to figure 75.
▶ Unscrew the four fixations nuts.
▶ Remove the burner door.
1
2
3
Fig. 75 Remove fixation nuts.
0010042720-001
Inspection and maintenance
1
0010042724-001
0010042725-001
55
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