Tekno Point ATHENA A-07 Manual And Installation page 34

failure
EH DHW water tank
sensor failure
EE Main board EE
failure
EF Driver board EE
failure
P1 AC current
protection
outdoor unit
P2 Current protection
of compressor
P3 AC voltage too
high / too low
protection
outdoor unit
P4 DC bus voltage
too high / too low
protection
P5 IPM overheat
protection
P6 Overheat
protection
exhaust temp
P7 High pressure
failure
P8 Low pressure
failure
Data error
Data error
of
of
Exhaust temp is too high
of
Insufficient water flow
The heat
Scaling.
High pressure switch is
damaged
Water pump is damaged
Refrigeration system failure
PCB failure
Insufficient of refrigerant
Clean strainer
Discharge air in hydraulic system
exchanger is
Check whether there is any block in
hydraulic system
Clean refrigeration system
Replace the high pressure switch
Check whether there is problem with
the circulation pump.
Drain out the superfluous refrigerant
- 6 -
Check leakages and fill refrigerant