TESY HPWH 3.1 200 U02, Руководство по установке и обслуживанию

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19
Upper tank
water temp.
sensor failure
P2
★★
●
(2 flashes 1 dark)
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
Evaporator coil
temp. sensor
failure
P3
★★★
●
(3 flashes 1 dark)
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
Return gas
temp sensor
failure
P4
★★★★
●
(4 flashes 1 dark)
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
Ambient temp.
sensor failure
P5
★★★★★
●
(5 flashes 1 dark)
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
Solar temp.
sensor failure
P6
★★★★★
★★★★★
●
(10 flashes 1 dark)
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
T6 too high
temp.protec-
tion
P8 Dark 1) T6 too high temp.
2) T6 sensor has problem
1) P8 appears at 125°C and disappears at
120°C
2) Check and if it’s necessary replace the
sensor
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
High pressure
protection (HP
Switch)
E1
★★★★★★
●
(6 flashes 1 dark)
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) 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
Low pressure
protection (LP
Switch)
E2
★★★★★★★
●
(7 flashes 1 dark)
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
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 compres-
sor working. If not, some problems with the fan
assembly
6) change the PCB board
Over heat pro-
tection (HTP
Switch)
E3
★★★★★★★★
●
(8 flashes 1 dark)
1) Too high tank water temp
2) The switch damaged
3) PCB board failure
1) If the tank water temp is over 85C, the
switch will open and the unit will stop for pro-
tection. After the water comes to normal temp,
2) Replace a new switch
3) Change the PCB board
Solar thermal
collector high
temp protec-
tion
E4
★ ★ ★ ★ ★ ★ ★ ★ ★ ★
★
●(11flash 1 dark)
1) solar water circuit wa-
ter flow very little or without
water flow
2) Related connecting
wires off
3) Water pump failure
4) PCB board failure
1) Solar water circuit fluid infusion and
exhaust
2) Related connecting wires being recon-
nected
3) Change the water pump
4) change the PCB board
Water flow
failure
E5
★★★★★★★★★
●
(9 flash 1dark)
1) solar water circuit water
flow very little or without
water flow
2) Related connecting wires
off
3)water pump failure
4)water flow switch failure
5) PCB board failure
1) Solar water circuit fluid infusion and exhaust
2) Related connecting wires being reconnected
3) Change the water pump
4) Change the water flow switch
5) Change the PCB board
Defrost Defrosting
indicate
★★★★★★★
……
(all long flashes)
Communica-
tion failure
E8 Bright