46
| LWZ 304-404 SOL
www.stiebel-eltron.com
INSTALLATION
Maintenance and cleaning
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Remove the dirt grille arranged above the condensate pan by
pushing it together from its sides and remove it upwards.
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Check the defrost pan drain and clean it, if required.
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Beneath the evaporator is a two-part evaporator gasket. The two
parts of the gasket are held together with a bracket.
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Pull the bracket upwards to remove.
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Initially, remove the l.h. half of the evaporator cover.
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Then remove the r.h. half of the evaporator cover.
!
Material losses
Do not use any cleaning agents, just water.
!
Material losses
Do not use a high pressure cleaner otherwise the evap-
orator fins may be bent.
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Spray water across the evaporator fins.
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Remove the water from the appliance using a wet suction
device.
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Remove contaminants and blockages.
Note
Check the condensate drain regularly, at least once a year.
10.4 Cleaning the condensate drain
Check the condensate drain regularly.
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Remove the evaporator cover (see chapter "Cleaning the
evaporator fins").
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Remove dirt and blockages immediately.
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To test the drain, pour one litre of water, for example from
two half-litre bottles, into the condensate pan.
If the condensate pan does not overflow, the drainage facility is
adequate.
10.5 Cleaning the filter ball valve
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Close the filter ball valve by turning it 90° clockwise.
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Undo the cap.
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If the filter element is contaminated, connect a short hose for
backwashing.
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Place the free end of the hose in a bucket.
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Turn the filter ball valve 15° clockwise.
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Turn the filter ball valve 15° back again.
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Check whether cleaning was successful. Repeat backwashing
if required.
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Refit the cap.
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Open the filter ball valve by turning it 90° anti-clockwise.
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Check the system fill pressure and adjust if required.
