sensor fail-
ure
P04
Return gas
temp sensor
failure
P05
Ambient
temp. sensor
failure
P06
Freezing
protection in
winter
E01
High pres-
sure protec-
tion (HP
Switch)
E02
Low pres-
sure protec-
tion (LP
Switch)
dark)
2) The sensor short
circuit
1) The sensor open
☆☆☆☆●
circuit
(4 flashes 1
2) The sensor short
dark)
circuit
1) The sensor open
☆☆☆☆☆●
circuit
(5 flashes 1
2) The sensor short
dark)
circuit
1)In the off state,
the
☆☆☆☆☆
lower part of the
☆☆☆☆☆●
water
(10 flashes
tank ≤5℃
1 dark)
1) Too high air inlet
temp
2) Less water in the
tank
3) The electronic
☆☆☆☆☆☆
expansion valve
●
assembly blocked
(6 flashes 1
4) Too much re-
dark)
frigerant
5) The switch
damaged
6) The uncom-
pressed gas is in
refrigerant system
1) Too low air inlet
temp
2) The electronic
expansion valve
☆☆☆☆☆☆
assembly blocked
☆●
3) Too less refrig-
(7 flashes 1
erant
dark)
4) The switch
damaged
5) The fan assembly
can not work
2) Replace the sensor
1) Check the sensor connec-
tion
2) Replace the sensor
1) Check the sensor connec-
tion
2) Replace the sensor
1)Check the temperature
below
the tank
1) Check if the air inlet temp
is over the working limited
2) Check if the tank is full of
water. If not, charge water
3) Replace the electronic
expansion valve assembly
4) Discharge some refrig-
erant
5) Replace a new switch
6) Discharge and then re-
charge the refrigerant
1) Check if the air inlet temp
is over the working limited
2) Replace the electronic
expansion valve assembly
3) Charge some refrigerant
4) Replace a new switch
5) Check if the fan working
when the compressor
working. If not, some prob-
lems with the fan assembly
24
V.1