Part V Trouble Shooting - Tekno Point ATHENA A-07 Manual And Installation

power off and cover it with protective cover, Check it roundly before you start it again.
6. It is advised to use the phosphoric acid whose temperature is about 50
consistency is 15% to clean the heat exchanger of the unit. First start the circulation pump to
clean it for 3 hours, and then flush it with tap water for three times. Do not use any amyctic
detergent to clean the heat exchanger and the tank.
7. Change the installation place
If the customer wants to change the site, please contact with the dealer or the local Customer
Service for help.
Table 3
Fault Fault
Code
F0 Communication
failure between
PCB and driver
board
F1 Communication
failure between
controller and
PCB
F2 Abnormal start of
compressor
(Open-phase,
reverse rotation)
F3 Out of step of
compressor
F4 IPM module
failure
F5 Overheat
protection
compressor

Part V Trouble shooting

Possible Causes
Open circuit or short circuit
between PCB
board
PCB is damaged
Driver board is damaged
Open circuit or short circuit
between controller and PCB
Controller is damaged
PCB is damaged
Failure of the driver module
of system
Failure of the driver module
of system
Failure of the driver module
of system
Compressor is overheated
of
Treatment
Repair
and driver between PCB and driver board
Replace PCB
Replace driver board
Repair
between controller and PCB
Replace controller
Replace PCB
Replace driver board
Replace driver board
Replace driver board
- -
60
or Replace the
or Replace the
and
cable
cable