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Performing maintenance
102 Instruction manual SGE
15
s
15.4.3 Clean heat exchanger
1. Detach the burner.
2. Clean the combustion chamber of the heat exchanger using a vacuum
cleaner and a soft brush.
3. Detach the chimney flue.
4. Clean the end of the heat exchanger using tap water.
5. Fit the burner.
6. Fit the chimney flue.
Note
Check the pressure differential again after cleaning. If the pressure
differential is too low following cleaning, please contact the supplier of the water
heater.
15.5 Solar collector
maintenance
See installation or users' manual for the solar collector. If this topic is not
covered in the manual, then contact the supplier of the collectors.
15.6 Finalizing
maintenance
See Eratta.
1. Fill the water heater (5 "
Filling").
2. Start the water heater (9 "
Starting the water heater")
3. Check the CO
2
value (3.13.3 "CO
2
adjustment").
4. Check the switching pressure of the pressure switch. (3.13.4 "
Switching
pressure measurement")
5. Erase the message
SERVICE REQUIRED
. Do this by pressing once on
then once on .