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CODE ALARM DESCRIPTION
PE Drift protection system
Pd Protection system for connection sensor
P6 Internal communication error
H3 Projection system for compressor overheating
LP Internal unit external error recognition (incorrect placement)
EE Internal memory error
dn Wrong connection of the communication cable, or failure of the electronic expansion valve
U5 Current control circuit malfunction
dd Wrong connection of the communication cable, or failure of the electronic expansion valve
E7 Operating Mode Conflict Error (multisiplt)
Fo Coolant recovery mode currently in progress
H1 Defrosting or oil recovery during hot running, currently in progress
P1 Current rated cooling or heating power output currently running
P2 Maximum power in cooling or heating currently in use
P3 Average power output in cooling or heating currently in use
P0 Minimum power in cooling or heating currently in use
H7 Compressor out of sync
Lc Compressor start failed
E4 Compressor in overload protection capsule
E8 Compressor in overload protection
E5 Overload protection system
P5 Overload protection (single phase)
H5 Current control module protection
U7 4 way valve switching malfunction
F8 Compressor working frequency limiter or abnormal reduction in compressor working frequency
En
Power supply module with compressor working frequency limitation or abnormal reduction of
compressor working frequency
F9
Temperature overshoot with frequency limitation or anomalous reduction in compressor working
frequency
FH
Antifreeze protection with frequency limitation or abnormally reduced compressor working
frequency
F6 Overload with frequency limitation or abnormal reduction of compressor working frequency
F7 Oil return to compressor during cooling mode
E9 Cold air jets (in draft or during heating mode)
E2 Antifreeze protection
LA Fault on fan 2 (for two fans unit) of the outdoor unit (fan blocked or unplugged)
L3 Fault on fan 1 (for units with two fans) of the outdoor unit (fan blocked or unplugged)
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