List of error codes for the Atlantic Alfea Excellia air-to-water heat pump

Download the manual for the Atlantic Alfea Excellia air-to-water heat pump

Before you begin, here are the most common error codes

• Error code 10 : outdoor sensor fault.
• Error code 50 : DHW temperature sensor fault.
• Error code 60 : room sensor 1 fault.
• Error code 121 : CC1 outlet temperature not reached.
• Error code 370 : error on the outdoor unit.

If you can’t find the solution to your problem, you can go directly to the Atlantic manufacturer’s website to look up the issue based on your error code.

Faults displayed on the hydraulic module

Before any work, make sure the main power supply is switched off.
When the heat pump is not powered on, frost protection is not guaranteed.

Depending on whether the fault comes from the outdoor unit or the hydraulic module, it may be shown on the digital display or via the LED on the interface boards.
Faults or failures of the hydraulic module are shown on the user interface display.

The display shows the symbol 
Press the   key to get details on the source of the fault.
Once the error is resolved, faults are automatically reset to zero.

Hydraulic module : Faults visible on the digital display.

 

Error code	Error label	Error location	Heat pump operation despite the error
–	No connection.	The room sensor’s polarity is not correct.	No
10	Outdoor sensor.	B9	Yes
33	Heat pump outlet temperature sensor error.	B21	Yes
44	Heat pump return temperature sensor error.	B71	Yes
50	DHW temperature sensor.	B3	Yes
60	Room sensor 1.		Yes
65	Room sensor 2.		Yes
105	Maintenance message.		Yes
121	CC1 outlet temperature not reached.		Yes
122	CC2 outlet temperature not reached.		Yes
127	Anti-legionella temperature not reached.		Yes
369	External fault (safety device).		No
370	Outdoor unit error (during a startup phase, see the “Commissioning” section).	see below.	No
441	Zone 2 sensor not configured (if 2-circuit kit)	BX31; Set parameter 5700 to 2, 4, or 6	No

Hydraulic module : Flashing LED visible on the interface board.

Outdoor unit error number	LED display		Error label
	LED 2 (green)	LED 1 (red)
11	1 Flash	1 Flash	Communication error between the hydraulic module and the outdoor unit.
23	2 Flashes	3 Flashes	Connection forbidden (serial connection error).
31	3 Flashes	1 Flash	Hydraulic module power supply error.
32	3 Flashes	2 Flashes	Communication error between the controller and the user interface.
41	4 Flashes	1 Flash	Connection error between the hydraulic module and the outdoor unit.
42	4 Flashes	2 Flashes	Hydraulic module heat exchanger temperature sensor error.
61	6 Flashes	1 Flash	Outdoor unit power supply error.
62	6 Flashes	2 Flashes	Outdoor unit control board error.
63	6 Flashes	3 Flashes	Inverter error.
64	6 Flashes	4 Flashes	Active filter error.
65	6 Flashes	5 Flashes	IPM board error.
67	6 Flashes	7 Flashes	Brief power outage to the outdoor unit (protective action).
68	6 Flashes	8 Flashes	Outdoor unit magnetic relay error.
71	7 Flashes	1 Flash	Discharge temperature sensor error.
72	7 Flashes	2 Flashes	Compressor temperature sensor error.
73	7 Flashes	3 Flashes	Heat exchanger temperature sensor error (outlet / center).
74	7 Flashes	4 Flashes	Outdoor temperature sensor error.
77	7 Flashes	7 Flashes	Outdoor unit radiator temperature error.
78	7 Flashes	8 Flashes	Expansion valve temperature sensor error.
84	8 Flashes	4 Flashes	Compressor current error.
86	8 Flashes	6 Flashes	Pressure switch sensor error / Pressure sensor error.
94	9 Flashes	4 Flashes	Current sensor error.
95	9 Flashes	5 Flashes	Compressor rotor position error detected. Compressor startup error.
97	9 Flashes	7 Flashes	Outdoor unit fan 1 error.
98	9 Flashes	8 Flashes	Outdoor unit fan 2 error.
A1	10 Flashes	1 Flash	Discharge temperature protection.
A3	10 Flashes	3 Flashes	Compressor temperature protection.
A4	10 Flashes	4 Flashes	Outdoor unit pressure error.
A5	10 Flashes	5 Flashes	Abnormal low pressure.
A9	10 Flashes	9 Flashes	Overcurrent error.
	Continuous flashing (on for 1 sec / off for 1 sec)		Recovery operation.
–	Lit continuously	Off	Defrosting.

Faults shown on the single-phase outdoor unit

To access the circuit board, the (right) front panel of the outdoor unit must be removed. Faults are coded as LED flashes.

When an error occurs:

• The “ERROR” LED (2) flashes.
• Press the “ENTER” button (SW3) once.
• The “ERROR” LED (2) flashes a number of times depending on the type of error (see table below).

figure 48 – Location of the switches and LED on the single-phase outdoor unit

 

LED display	Error label
1 Flash	Serial communication feedback error.
2 Flashes	Discharge temperature sensor error.
3 Flashes	Pressure switch sensor error.
4 Flashes	Heat exchanger outlet temperature sensor error.
5 Flashes	Intermediate heat exchanger temperature sensor error.
6 Flashes	Expansion valve temperature sensor error.
7 Flashes	Outdoor temperature sensor error.
8 Flashes	Compressor temperature sensor error.
9 Flashes	Radiator temperature sensor error.
11 Flashes	Discharge temperature protection (permanent shutdown).
12 Flashes	Compressor temperature protection (permanent shutdown).
13 Flashes	Current sensor error (permanent shutdown).
14 Flashes	Compressor rotor position detection error (permanent shutdown).
15 Flashes	Compressor startup error (permanent shutdown).
16 Flashes	Fan motor 1 error (permanent shutdown).
17 Flashes	Fan motor 2 error (permanent shutdown).
18 Flashes	Inverter error.
19 Flashes	Active filter error.
20 Flashes	Abnormal low pressure.
22 Flashes	Hydraulic module fault.

Faults shown on the three-phase outdoor unit

To access the circuit board, the (right) front panel of the outdoor unit must be removed. Faults are coded as LED flashes. When an error occurs:

• The “ERROR” LED (2) flashes.
• Press the “ENTER” button (SW4) once.
• The “ERROR” LED (2) flashes several times depending on the type of error (see table below).

LED display	Error label
1 Flash	Serial communication return error.
2 Flashes	Discharge temperature sensor error.
3 Flashes	Pressure switch sensor error.
4 Flashes	Exchanger outlet temperature sensor error.
5 Flashes	Intermediate exchanger temperature sensor error.
6 Flashes	Expansion valve temperature sensor error.
7 Flashes	Outdoor temperature sensor error.
8 Flashes	Compressor temperature sensor error.
9 Flashes	Inverter radiator temperature sensor error.
10 Flashes	P.F.C. radiator temperature sensor error.
11 Flashes	Discharge temperature protection (permanent shutdown).
12 Flashes	Compressor temperature protection (permanent shutdown).
13 Flashes	Current sensor error (permanent shutdown).
14 Flashes	Compressor rotor position detection error (permanent shutdown).
15 Flashes	Compressor startup error (permanent shutdown).
16 Flashes	Fan motor 1 error (permanent shutdown).
17 Flashes	Fan motor 2 error (permanent shutdown).
18 Flashes	Inverter error.
19 Flashes	P.F.C. error.
20 Flashes	Abnormally low pressure.
22 Flashes	Hydraulic module malfunction.