Troubleshooting - STIEBEL ELTRON LWZ 180 Bedienung Und Installation

oPErATIoN

Troubleshooting

f Remove the fascia from the appliance.
f Undo the knurled screws securing the filter drawer.
f Pull the filter drawer forwards to remove it from the
appliance.
f If necessary, place one or more new filters in the filter
drawer. Ensure that the filters are installed in the intended
position. Air flows through the filters from top to bottom. The
flow direction is indicated with an arrow on the filter drawer
fascia. The outdoor air filter is marked with an arrow. Install
the outdoor air filter with the arrow pointing in the flow
direction. The extract air filter is imprinted with the words
"Clean air side", which must be at the bottom.
Material losses
!
Operate the appliance with at least the recommended
filter class. Ensure that filters are fitted accurately so they
can function properly.
f Push the filter drawer into the appliance.
f Secure the filter drawer with the knurled screws.
f Fit the fascia.
f Plug the mains plug into a standard socket.
f Carry out a filter reset by setting parameter P4 to 1. The
"filter" symbol disappears. The appliance resets the filter
runtime to 0.
f Make a note of the filter change date.
Note
There is a label for each filter on the front panel.
f Once you have performed a filter change, erase the
previously entered dates in the "Last" and "Next"
columns.
f Enter today's date in the "Last" column.
f Enter the date for the next filter change in the "Next"
column. For the period between "Last" and "Next",
use the value set by the qualified contractor in pa-
rameter P19.
f Order new filters in good time or purchase a filter
subscription.
Note
If other filters are installed in the system, e.g. filters in the
extract air vents or a filter box, also perform the inspec-
tion there and change the filter(s) if necessary.
36 | LWZ 180 / L WZ 280 / LWZ 180 Enthalpie / LWZ 280 Enthalpie
6. Troubleshooting
Faults detected by the appliance are stored in actual values I70
to I79. The latest fault is also shown in the lower section of the
standard display.
If you cannot remedy the fault, contact your qualified contractor.
To facilitate and speed up your request, provide the number from
the type plate (000000-0000-000000).
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