Tekno Point ATHENA C200 User And Installation Manual page 75

E6 Exhaust temp sensor failure
EVI return circuit air return
temp
E7
sensor failure
Economizer inlet temp sen-
EA
sor failure
Indoor environment temp
sensor
EB
failure
Economizer outlet temp
EC
sensor failure
ED Buffer tank sensor failure
DHW water tank sensor
EH
failure
EE Main board EE failure
EF Driver board EE failure
High pressure switch pro-
P7
tection
Low pressure switch pro-
P8
tection
Water flow switch off pro-
PC
tection
1. The sensor isn't connected well. Reconnect it.
2. The sensor is damaged. Replace it.
3. The PCB is damaged. Replace it.
1. The sensor isn't connected well. Reconnect it.
2. The sensor is damaged. Replace it.
3. The PCB is damaged. Replace it.
1. The sensor isn't connected well. Reconnect it.
2. The sensor is damaged. Replace it.
3. The PCB is damaged. Replace it.
1. The sensor isn't connected well. Reconnect it.
2. The sensor is damaged. Replace it.
3. The PCB is damaged. Replace it.
1. The sensor isn't connected well. Reconnect it.
2. The sensor is damaged. Replace it.
3. The PCB is damaged. Replace it.
1. The sensor isn't connected well. Reconnect it.
2. The sensor is damaged. Replace it.
3. The PCB is damaged. Replace it.
1. The sensor isn't connected well. Reconnect it.
2. The sensor is damaged. Replace it.
3. The PCB is damaged. Replace it.
1. The software of the PCB isn't matched.
2. The PCB is damaged. Replace it.
1. The software of the drive board isn't matched.
2. The drive board is damaged. Replace it.
1. Insufficient water flow:
a. The water piping is blocked. Check the water piping and clean the
Y-type filter.
b. There is air in the water piping. Vacuumize it.
c. The power of circulation pump is insufficient. Change to a larger
one.
d. Scaling of heat exchanger. Use a special cleaning agent to clean it.
2. The high pressure switch is damaged. Replace it.
3. The fluorine system is blocked. Fix it.
4. The PCB is damaged. Replace it.
1. Refrigerant leakage. Check the leakage and repair it, vacuumize it
and charge
refrigerant as parameter table.
2. The refrigerant is insufficient. Charge refrigerant as parameter table.
3. The low pressure switch is damaged. Replace it.
4. The electronic expansion valve is damaged. Replace the electronic
expansion valve.
5. The surface of the evaporator is dirty. Clean the evaporator.
6. The fan is damaged. Replace the fan.
7. The PCB is damaged. Replace it.
1. Check if the water flow switch is reliably connected.
2. There's air in the circulating water inlet pipe. Open the exhaust port
of the circulating
pump for vacuum.
3. The water flow switch is damaged. Replace it.
4. The water flow is insufficient. Clean the Y-type filter and ensure that
the circulation
pipeline is smooth.
5. If the circulating pump does not work, check if the power output of
the circulating pump on PCB is normal.
6. The circulating pump is damaged. Repair or replace it.
7. The PCB is damaged. Replace it.
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