Atlantic alfea extensa + - 10.3 Faults displayed outdoor unit

10.3 Faults displayed outdoor unit
To access the electronic board, you must remove the
front (right-hand) facing from the outdoor unit.
Faults are coded by LED ashes.
When an error occurs:
- The diode "ERROR" (2) blinks.
- Press once on the switch "ENTER" (SW3).
- The "ERROR" (2) diode blinks several times depending
on the error's type (see below).
LED display Error contents
1 Flash Serial forward transfer error.
2 Flashes Discharge thermistor error.
3 Flashes Pressure sensor error.
4 Flashes Heat-exchange thermistor (outlet) error.
5 Flashes Heat-exchange thermistor (intermediate) error.
6 Flashes Expansion valve thermistor error.
7 Flashes Outdoor temperature thermistor error.
8 Flashes Compressor thermistor error.
9 Flashes Heat sink thermistor error.
11 Flashes Discharge temperature protection (permanent stoppage).
12 Flashes Compressor temperature protection (permanent stoppage).
13 Flashes Current trip (permanent stoppage).
14 Flashes Detection of compressor position error (permanent stoppage).
15 Flashes Compressor start up error (permanent stoppage).
16 Flashes Fan motor 1 error (permanent stoppage).
17 Flashes Fan motor 2 error (permanent stoppage).
18 Flashes Inverter error.
19 Flashes Active lter error.
20 Flashes Low pressure abnormal.
21 Flashes Connection with hydraulic unit error.
22 Flashes Hydraulic unit abnormality condition.
" Ensure that the general electrical power supply has been cut off before starting any repair work.
" When the HP is not under tension, protection frost-free is not assured.
gure 53 - Location of switches and LED
on outdoor unit (models extensa + 13 & 16)
SW1
SW2
SW3 SW4 SW5
(1)
(2)
(3)
(4)
(5)
LED
and switches
Installation and operation manual "1734 - EN" - 77 -
Heat pump air/water split 1 service alféa extensa +
(models extensa + 13 & 16)