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When Trouble Happens
Power lamp flash
times/LED on
PCB flash times
failure description Reasons
E0 10 Fault in drain system Float switch is open
E1 1
Indoor ambient
temp. sensor failure
Sensor broken down or short circuit for
more than 2m continuously
E2 2
Indoor pipe
temp. sensor failure
Sensor broken down or short circuit for more
than 2m continuously
E3 3
Outdoor ambient
temp. sensor failure
Sensor broken down or short circuit for more
than 2m continuously
E4
4
Outdoor pipe or
discharge temp.
sensor failure
Sensor broken down or short circuit for more
than 2m continuously or outdoor discharge
temp. over 120
for 3 times continuously in
30m
E5 5 overcurrent
Indicate phase failure when been electrified
for the first time, indicate overcurrent
protection during working procedure
E6
6
16
High pressure
malfunction
Outdoor high pressure switch acts
Low pressure
malfunction
Outdoor low pressure switch acts or the
proctector on the top of compressor breaks
for protection
E8 8
Communication
failure between
indoor PCB and panel
or wired controller
Communication abnormal for more than 4m
continuously
E9 9
Communication
failure between
indoor and outdoor
unit
Communication between indoor PCB and
outdoor PCB open for more than 4m
E7 13
Temperature cutoff
protection
System failure. System cooling or heating
function abnormal
12
Failure code list
Failure code
on wired
controller