
8
★
★
★
Current
overload
protection
a.
The fan motor run abnormally;
b.
The condenser and
evaporator is dirty;
c.
The air inlet and outlet is
abnormally
9
Maximum
current
protection
a.
The outdoor control board is
short circuit;
b.
The drive board is short
circuit;
c.
The other components is short
circuit
10
★
Communication
trouble
between
outdoor unit
and driver
a.
the connection wires connect
loose
b.
The outdoor board or drive
board is failure;
11
★
Outdoor
EEPROM in
trouble
a.
The EEPROM chip is loose;
b.
The EEPROM chip inserted
with opposite direction;
c.
The EEPROM chip is failure
12
★
★
Outdoor
ambient
temperature
too low
protection
Outdoor ambient temperature
too low
13
★
Compressor
exhaust
temperature
too high
protection
a.
The compressor exhaust
temperature sensor is failure;
b.
The refrigerant of the unit is
not enough
14
★
★
Outdoor
ambient
temperature
sensor in
trouble
a.
The outdoor ambient
temperature sensor connect
loose;
b.
The outdoor ambient
temperature sensor is failure;
c.
The outdoor control board is
failure
15
★
★
Compressor
shell
temperature
too high
protection
a.
The compressor exhaust
temperature sensor connect
loose
b.
The refrigerant of the unit is
not enough
16
Anti-freeze
protection with
cooling or
overload
protection with
heating in
a.
The indoor coil temperature
sensor connect loose;
b.
The indoor coil temperature
sensor is failure;
c.
The indoor control board is
failure
-
33
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