Zehnder ComfoControl Ease Installation Guide
Malfunction alerts
Meanings of malfunction alerts
Alerts of possible malfunctions can be
found in the ComfoAir’s manual.
Code
A0
Description
n/a
The system should remain connected
to its power supply unless the ComfoAir
requires taking out of service due to a
serious malfunction or for filter cleaning/
replacement or any other compelling
reasons. When the unit is disconnected,
the dwelling will no longer enjoy
A1
NTC sensor T1 is defective.
(= outside air temperature)
A2
A3
A4
NTC sensor T2 is defective.
(= supply air temperature)
NTC sensor T3 is defective.
( =return air temperature)
NTC sensor T4 is defective.
(= exhaust air temperature)
A5
Malfunction in the bypass motor.
mechanical ventilation, and this can lead
to problems with damp and mould. Long-
term deactivation of the ComfoAir must be
prevented.
A6
n/a
n/a
A10
A11
NTC sensor Tah is defective.
(= temperature of the Post-heater)
E1
E2
E4
Exhaust fan not rotating.
Supply fan not rotating.
The ComfoAir has been switched off by
external contact.
EA1
EA2
NC
Enthalpy sensor measures excessive
Relative Humidity (RH) values.
The ComfoAir is not
communicating with the enthalpy sensor.
CC Ease is not communicating with the
ComfoAir.
FilterI
Internal Filter is dirty.
FilterE External Filter is dirty.
EN - 25
| General | Details |
|---|---|
| Name | Zehnder ComfoControl Ease Installation Guide |
| Make | Zehnder |
| Language | English |
| Filetype | PDF (Download) |
| File size | 1.37 MB |
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