cod. 3541T620 - Rev. 05 - 04/2022
122
EN
DORA
90 LT - 120 LT
2.12 FAULTS/PROTECTION
This device has a self-diagnosis system that covers some pos-
sible faults or protections from anomalous operating conditions
through: detection, signalling and adoption of an emergency
procedure until resolution of the fault.
Fault/Protection
Error code
Display indi-
cation
Tank lower probe fault
P01
+ P01
Tank upper probe fault
P02
+ P02
Defrost probe fault
P03
+ P03
Inlet air probe fault
P04
+ P04
Evaporator inlet probe fault
P05
+ P05
Evaporator outlet probe fault
P06
+ P06
Compressor flow probe fault
P07
+ P07
Solar collector probe failure
(Not used)
P08
+ P08
High pressure protection
E01
+ E01
Recirculation circuit alarm
E02
+E02
Temperature not suitable for heat
pump operation alarm.
(With alarm active the water is heat-
ed only with heating element)
PA
+PA
No communication (with alarm ac-
tive the device does not work)
E08
+ E08
Electronic fan fault
E03
+ E03
EXPERT TECHNICIAN
/ MANUFACTURER'S
TECHNICAL
ASSISTANCE
If one or more of the above
faults occur, contact the
manufacturer's technical as-
sistance, indicating the error
code shown on the display.