Airwell Airflow 2020, Installation And Operating Manual

Page: 34 / 80

34
8 - CONTROL
ALARMS
Alarm Description Possible cause
E00 No communication between thermostat and unit Check wiring between the thermostat and the unit board
Loose wiring, possible failure of the board or the thermostat following an
anomaly related to the power supply voltage
M
E01 Inlet temp. Probe fault Check wiring.
Potential probe failure, replace it
A
E02 Outlet temp. Probe fault Check wiring.
Potential probe failure, replace it
A
E03 Externe air temperature probe fault Check wiring.
Potential probe failure, replace it
A
E05 Ambient humidity probe fault Replace the thermostat. A
E07 Supply humidity probe fault Check wiring.
Potential probe failure, use a series tester to make sure that the generated
signal is within the range (4-20 mA).
Replace the probe
A
E10 Water temperature probe fault Check wiring.
Potential probe failure, replace it.
A
E11 Fire alarm If there is a fire sensor: check the sensor and the wiring.
If there is no fire sensor: check the input jumper.
M
E12 Electric heater alarm If heaters are present: check if powered
If heaters are not present: check jumper on input (11cn1 - 7cn1)
Dirty air filter
Dirty heaters (no filter)
No airflow (control the fan)
Heater reset
M
E13 Compressor low pressure SUMMER
insufficient supply air flow rate in ambient
-
filters air dirty
-
obstacles air distribution system
-
supply fan fault
Cooling circuit anomaly - Contact a qualified technician.
WINTER
insufficient exhaust air flow rate
-
filters air dirty
-
return installation obstacles from ambient
-
exhaust fan fault
-
problems during defrost
A / M
E14 Compressor high pressure WINTER
insufficient supply air flow rate in ambient
-
filters air dirty
-
obstacles air distribution system
-
supply fan fault
SUMMER
insufficient exhaust air flow rate
-
filters air dirty
-
return installation obstacles from ambient
-
exhaust fan fault
M
E18 Humidifier alarm problems related to the humidifier M
E19 Outlet high temp. signaling the temperature of the air supplied in the room is too high;
-
the air is not compatible with the unit's operating limits
-
insufficient supply air flow rate in ambient
-
filters air dirty
-
obstacles air distribution system
-
supply fan fault
A
E20 Outlet 2 high temp. signaling the temperature of the air supplied in the room is too high;
-
the air is not compatible with the unit's operating limits
-
insufficient supply air flow rate in ambient
-
filters air dirty
-
obstacles air distribution system
-
supply fan fault
A / M