Fault Codes - Carrier HDB Manual De Instalación

HDB controller

Fault codes:

In the case of failure and with the unit ON, the red LED on the
board starts flashing according to the fault code: 0.5 seconds ON
and 0.5 seconds OFF followed by 5 seconds OFF.
The fault code table is shown below:
Fault Code Description
2 Air temperature sensor
3 Changeover sensor
4 Cold Draft thermistor
5 Condensate pump error
6 Electric heater configuration error
7 EEprom error
8 Chilled Beam configuration error
GB - 6
Resettable
Yes
Yes
Yes
No
Yes
Yes
Yes