8
STARTING
FAILURE DISPLAY
When there is failure in the unit operation the code of failure will be displayed. The
following table describes the error messages represented by the code displayed on
the Indoor Display:
E
rr
or
C
od
e
Type of malfunction
Note
Action*
H1
** defrost mode or oil return procedure
Temporary protection
No any - Normal operation
H3
compressor overload protection
Temporary protection
If the alarm don't desappear call
the Service
H5
IPM protection
Temporary protection
If the alarm don't desappear call
the Service
H6
indoor fan plug
Alarm
Call the Service
E2
anti freeze protection
Temporary protection
If the alarm don't desappear call
the Service
E4
gas-discharge protection for compressor
Temporary protection
If the alarm don't desappear call
the Service
E5
over current protection
Temporary protection
If the alarm don't desappear call
the Service
E6
communication failure
Alarm
Call the Service
E8
anti-high temperature protection
Temporary protection
If the alarm don't desappear call
the Service
F1
circuit-open orcircuit-short for indoor environment
tmep.sensor
Temporary protection
If the alarm don't desappear call
the Service
F2
circuit-open orcircuit-short for indoor evaporator
tmep.sensor
Alarm
Call the Service
F3
circuit-open orcircuit-short for outdoor environment
tmep.sensor
Alarm
Call the Service
F4
circuit-open orcircuit-short for outdoor condenser
tmep.sensor
Alarm
Call the Service
F5
circuit-open orcircuit-short for outdoor gas-discharge
tmep.sensor
Alarm
Call the Service
PH
high voltage protection
Temporary protection
If the alarm don't desappear call
the Service
PL
low voltage protection
Temporary protection
If the alarm don't desappear call
the Service
* some alarm can be caused by the poor maintenance of the units
** The operating in heating mode, if ice forms on the external heat exchanger, the active unit of the automatic defrost
cycles marked by the signal on temporary H1 display in the indoor unit.