Protection/
Malfunction
Low pressure
protection
(LP Switch)
Over
heat
protection
(HTP Switch)
Defrost
Communicati
on failure
J
OVERVIEW OF THE UNIT
PARTS AND DESCRIPTIONS
Fan motor and fan assembly
Compressor capacitor
4
54
Error
LED indicator
code
EE2
☆☆☆☆☆☆
☆●
(7 flashes 1
dark)
EE3
☆☆☆☆☆☆
☆☆●
(8 flashes 1
dark)
Defro
☆☆☆☆☆☆
sting
☆☆......(all
indic
long flashes)
ate
EE8
Bright
Air guide duct
Electrical box
Main control board
Fan capacitor
Transformer
Wiring terminal
Wiring clip
Fan connecting plate
Coil temp sensor
Evaporator
Corrective actions
Possible reasons
1) Too low air inlet temp
1) Check if the air inlet temp is
2) The electronic expansion
over the working limited
valve assembly blocked
2)
3) Too less refrigerant
expansion valve assembly
4) The switch damaged
3) Charge some refrigerant
5) The fan assembly can
4) Replace a new switch
not work
5) Check if the fan working when
the compressor working. If not,
some problems with the fan
assembly
1) If the tank water temp is over
1) Too high tank water
85C, the switch will open and the
temp
unit will stop for protection. After
2) The switch damaged
the water comes to normal temp,
2) Replace a new switch
Replace
the
electronic
Top plastic cover
Control panel
Four-way valve
Suction temp sensor
Pipes
Low pressure switch
Service valve
Compressor
High pressure switch
23
Electronic expansion valve
Capilary tube
Refrigerant filter
Water tank
Illustration 16