HTW VAW Series User Manual

76
temp. sensor
failure
●
(5 flashes 1
dark)
circuit
2) The sensor short
circuit
3) PCB board failure
connection
2) Replace the sensor
3) change the PCB board
Solar temp.
sensor failure
P6
☆☆☆☆☆
☆☆☆☆☆
● (10
flash1dark)
1) The sensor open
circuit
2) The sensor short
circuit
3) PCB board failure
1) Check the sensor
connection
2) Replace the sensor
3) change the PCB board
Emergency
switch off
EC
only show
the
protection
code
1) Connecting wire off
2) PCB board failure
1) According to the physical
truth judging whether is
normal or not
2) change the PCB board
E1
1) Too high air inlet
1) Check if the air inlet temp
temp
is over the working limited
2) Less water in the
2) Check if the tank is full of
tank
water. If not, charge water
3) The electronic
3) Replace the electronic
High
☆☆☆☆☆
expansion valve
expansion valve assembly
pressure
☆
●
assembly blocked
4) Discharge some
protection
(6 flashes 1
4) Too much refrigerant
refrigerant
(HP Switch)
dark)
5) The switch
damaged
6) The uncompressed
5) Replace a new switch
6) Discharge and then
recharge the refrigerant
gas is in refrigerant
7) change the PCB board
system
7) PCB board failure
E2
☆☆☆☆☆
☆☆●
(7 flashes
1 dark)
1) Too low air inlet
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
problems with the fan
assembly
6) change the PCB board
temp
2) The electronic
expansion valve
Low pressure
protection
(LP Switch)
assembly blocked
3) Too less refrigerant
4)
The
switch
damaged
5) The fan assembly
can not work
6 PCB board failure

HTW VAW Series Specifications

General

Brand	HTW
Model	VAW Series
Category	Heat Pump
Language	English