Burner description
1 Burner
2 Air/gas collector
3 Insulating surface area
4 Ignition electrode
5 Earth electrode
6 Flame detection electrode
10.2.3 Cleaning the heat exchanger
1. Remove the burner.
2. Clean the pipes inside the heat exchanger using diluted white vinegar
and a nylon brush.
3. Flush with water.
Important
The water will exit the heat exchanger by passing through the
condensates discharge siphon.
4. After twenty minutes, wash off any dirt with a powerful water jet.
Caution
Do not use a high-pressure cleaner.
Be careful not to direct the water jet straight at the insulating
surface behind the heat exchanger. If the insulating surface is wet,
it must be changed.
5. Check the burner.
6. Clean the siphon.
7. Remount the burner.
For more information, see
Remounting the burner, page 105
10.2.4 Checking the burner
1. Remove the burner.
2. Check whether the surface of the burner is damaged in any way.
Replace the burner and its gasket if they are damaged.
3. Check the safety thermostats.
Important
Replace the safety thermostats if they are damaged.
Fig.118 Burner
MW
-3
0
0
0
2
1
5
-0
1
1
6
3
2
4
5
Fig.119 Cleaning the exchanger
MW
-3
0
0
0
1
0
0
2
3
Fig.120 Water jet cleaning
MW
-3
0
0
0
1
0
1
-0
2
4
10 Maintenance
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