RT880/SP950
8.2
Control panel fault messages
The "Fault" LED (fig. 2 2, page 3) lights up if there is a fault with the station-
ary air conditioner. The type of error is shown on the display by the following
error codes:
Display
Description
text
The compressor does
FO1
not work.
The system cannot
FO2
determine the current
temperature.
System overload, the
FO3
compressor switches off.
The condensation water
FO4
that has formed is not
being discharged.
Overload due to fan.
FO5
Communication prob-
FO6
lem between display unit
and control unit.
EN
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Cause
Compressor overload or
fault in the electricity sup-
ply to the compressor.
Room temperature sen-
sor is not correctly con-
nected to the stationary
air conditioner or the
measured value is not
within the specifications.
Thermal overload due to
a defective fan or an
ambient temperature that
is too high.
The condensation water
that has formed is not
being discharged, and an
error message appears
in the display.
Short circuit in condenser
fan or evaporator fan.
Fault in the wiring.
Display messages
Remedy
➤ Switch off the system.
➤ Switch it on again after
60 minutes.
➤ If the fault occurs again,
contact an authorised
workshop.
➤ Do not operate the
system at ambient
temperatures of below
0 °C or above 43 °C.
The pump is clogged or
defective.
The condensation water
hose is clogged.
The float switch is defective
or jammed.
Leave the system switched
off and consult an author-
ised service centre.
39