AERMEC MVA - Page 20

20
Code
Alarm description
bH
Error system clock
bC
Thermal protection
bL
Thermal protection
P0
Error management on board inverter com-
pressor
P1
Card malfunction management inverter com-
pressor
P2
Protection of power module inverter compres-
sor
P3
Protection restart inverter compressor
H0
Error on card management fans
H1
Card malfunction management fans
H2
Protection of the power supply module fans
LO
Error unit
L1
Fan guard
L2
Protection electrical resistance
L3
Condensate tray full
L4
Power Failure panel flush
L5
Frost protection
L7
No master set on the system
L8
Insufficient power supply
L9
Too many units in the group
LA
Water temperature sensor error
LH
Air quality alert
LC
Incompatibility between indoor and outdoor
units
d1
Error control board unit
d3
Error sensor ambient air
d4
Error temperature sensor input to the battery
d6
Error temperature sensor output to the battery
d7
Error humidity sensor
d8
Water temperature sensor error
d9
Error position jumper cap
dA
Error addressing unit
dH
Error connecting panel flush and controller
unit
dC
Error in setting dip switches for selecting the
size
dL
Sensor fault ambient air
dE
Error carbon dioxide probe
db
It indicates an active debug mode
A0
Unit waiting because debug mode
A1
Will implement a procedure to control the
operating parameters of the compressor
A2
Notice quantity insufficient refrigerant gas
A3
Currently undergoing a defrost cycle
A5
Unit in test mode
A8
Ongoing mode pump down
Code
Alarm description
AJ
Notice to clean the air filter unit
AU
Emergency stop system
Ab
Emergency shutdown system
Ad
Protected mode
U2
Error setting jumper cap on the outdoor unit
U3
Protection on phase sequence of power
system
U4
Protection for lack of refrigerant
U5
Error address control board compressor
U6
Alarm malfunction electronic expansion valve
U8
Malfunction on the cooling circuit of the indo-
or unit
U9
Malfunction on the cooling circuit of the
outdoor unit
UC
Master unit set successfully
UE
Adding insufficient gas
UL
Emergency mode
C0
Communication error
C2
Communication error
C3
Communication error
C4
Error quantity refrigerant
C5
Error procedure automatic addressing
C6
Error imposttatzione address of outdoor unit
CH
Error output power
CL
Error output power
CF
Error master
CJ
Generic error Addressing
CP
Error master
CU
Communication error
Cb
Error asseganzione IP address