HTW VAW Serie Manual De Usuario E Instalacion página 78

Protection/ Error
Malfunction code
High
pressure
EE1
protection
(HP Switch)
EE2
Low
pressure
protection
(LP Switch)
EE3
Over heat
protection
(HTP
Switch)
Defro
sting
Defrost
indica
te
EE8
Communi-
cation
LED
Possible reasons
indicator
Too high air inlet temp
-
☆☆☆ ☆
Less water in the tank
-
☆
The electronic
☆●
-
expansion valve assembly
(6
blocked
flashes 1
Too much refrigerant
dark)
-
The switch damaged
1) Too low air inlet temp
2)The electronic
Expansion valve
☆☆☆☆☆
assembly blocked
3) Too less refrigerant
☆☆●
( 7 flashes 4) The switch damaged
dark) 5) The fan assembly
not work
☆☆☆☆☆
☆☆☆●
Too high tank
-
(8 water temp
flashes
The switch damaged
-
1 dark)
☆☆☆☆☆
☆☆☆......
ll
flashes)
Bright
-
is over the working limited
-
water. If not, charge water
-
expansion valve assembly
-
1) Check if the air inlet temp
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
If not, some problems with
fan assembly
1) If the tank water temp
over 85C, the switch will
open and the unit will stop
for protection. After the
water comes to normal
2) Replace a new switch
32
Corrective actions
Check if the air inlet temp
Check if the tank is full of
Replace the electronic
Discharge some refrigerant