Zehnder ComfoControl Luxe Manuel De L'utilisateur page 36

Meaning of the
error messages
Code Description
A0 NTC sensor Tge is faulty.
(= Temperature of the outside
air for base exchanger)
A1 NTC sensor T1 is faulty.
(= Temperature of the intake air)
A2 NTC sensor T2 is faulty.
(= Temperature of the supply
air)
A3 NTC sensor T3 is faulty.
(= Temperature of the extract
air)
A4 NTC sensor T4 is faulty.
(= Temperature of the exhaust
air)
A5 Malfunction in the bypass
motor.
A6 Malfunction in the motor of the
preheater element
A7 Preheater element not heating
sufficiently.
A8 Preheater element becomes
too hot.
A10 NTC sensor Tch is faulty.
(= Temperature in the Comfo-
Hood)
A11 NTC sensor Tah is faulty.
(= Temperature of the reheater)
E1 Extract fan not rotating.
E2 Supply fan not rotating.
E3 Temperature sensor Comfo-
Hood too high.
E4 The ventilation unit has been
switched off by external con-
tact
EA1 Enthalpy sensor measures ex-
cessively high Relative Humid-
ity (RH) values.
EA2 The ventilation unit is not
communicating with the en-
thalpy sensor.
EN 14
Code Description
EA15 The ventilation unit is not com-
municating with the CC Luxe.
EA16 CC Luxe is not communicating
with the ComfoCool
Filter Filter is dirty
C1 Condenser of the ComfoCool
becomes too hot.
C2 Compressor of the ComfoCool
is faulty.
C3 NTC sensor Tcon of the
ComfoCool is faulty.
(= Temperature of the con-
denser)
C4 NTC sensor Tin of the Comfo-
Cool is faulty.
(= Temperature of the supply
air)