TESY HPWH 2.1 260 U02 S Instrucciones De Uso Y Mantenimiento página 29

Return gas
temp sensor P4
failure
Ambient temp.
P5
sensor failure
Solar temp.
P6
sensor failure
T6 too high
temp.protection P8
Emergency
EC
switch off
High pressure
protection (HP E1
Switch)
Low pressure
protection (LP E2
Switch)
☆☆☆☆●
(4 flashes 1 dark)
☆☆☆☆☆●
(5 flashes 1 dark)
☆☆☆☆☆☆☆☆☆☆●(10
flash1dark)
Dark
only show the protection code
☆☆☆☆☆☆●
(6 flashes 1 dark)
☆☆☆☆☆☆☆●
(7 flashes 1 dark)
1) The sensor open
circuit
2) The sensor
short circuit
3) PCB board
failure
1) The sensor
open circuit
2) The sensor
short circuit
3) PCB board
failure
1) The sensor
open circuit
2) The sensor
short circuit
3) PCB board
failure
1) T6 too high
temp.
2) T6 sensor has
problem
1) Connecting
wire off
2) PCB board
failure
1) Too high air
inlet temp
2) Less water in
the tank
3) The electronic
expansion valve
assembly blocked
4) Too much
refrigerant
5) The switch
damaged
6) The
uncompressed
gas is in
refrigerant system
7) PCB board
failure
1) Too low air inlet
temp
2) The electronic
expansion valve
assembly blocked
3) Too less
refrigerant
4) The switch
damaged
5) The fan
assembly cannot
work
6 PCB board
failure
28
1) Check the sensor
connection
2) Replace the sensor
3) change the PCB board
1) Check the sensor
connection
2) Replace the sensor
3) change the PCB board
1) Check the sensor
connection
2) Replace the sensor
3) change the PCB board
1) P8 appears at 125°C and
disappears at
120°C
2) Check and if it's necessary
replace the
sensor
1) According to the physical
truth judging whether is
normal or not
2) change the PCB board
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 refrigerant
5) Replace a new switch
6) Discharge and then
recharge the refrigerant
7) change the PCB board
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