fluidra 74148, Owner'S Manual

Page: 29 / 222

25
Current detection
circuit failure
EE22
1. Voltage signal abnormal
2. Driver board is damaged
3. Main board failure
1. Change a new main board
2. Change a new driver board
Compressor start
failure
EE23
1. Main board is damaged
2. Compressor wiring error or poor
contact or unconnected
3. Liquid accumulation inside
4. Wrong phase connection for
compressor
1. Check the main board or change a
new one
2. Check the compressor wiring
according to the circuit diagram
3. Check the compressor or change a
new one
Ambient Temperature
device failure on Driver
board
EE24 Ambient Temperature device failure Change driver board or main board
Compressor phase
failure
EE25
Compressors U, V, W are just connected to
one phase or two phases.
Check the actual wiring according to the
circuit diagram
EEPROM data read
malfunction
EE27
1. Wrong EEPROM data in the program or
failed input of EEPROM data
2. Main board failure
1. Re-enter correct EEPROM data
2. Change a new main board
The inter-chip
communication failure
on the main control
board
EE28 Main board failure
1. Stop electricity supply and restart it
2. Change a new main board
Remarks:
1. In heating mode, if the water out temperature is higher than the set temperature over 7
℃
, LED
controller displays EE04 for water over-heating protection.
EE04 Water Overheating Protection
For example as below:
Mode
Output water
temperature
Set point
temperature
Condition Malfunction
Heating
mode
36
℃
29
℃
Tout -Tset
≧
7
℃
EE04 Overheating protection
for water temperature (d2-
TH5)