25
Er48
Internal temperature error on electronics
(unit stops working)
If this error occurs 6 mes in 60 minutes,
unplug the pump to clear the error.
Abnormal driving control
Replace drive PCB
Er49
Internal electrical error
(unit stops working)
If this error occurs 6 mes in 60 minutes,
unplug the pump to clear the error.
Abnormal driving control
Replace main board
Replace compressor
Er50
Internal temperature error on electronics
(unit stops working)
If this error occurs 6 mes in 60 minutes,
unplug the pump to clear the error.
Abnormal driving control
Replace main board
Er51
Soware error
(unit stops working)
If this error occurs 6 mes in 60 minutes,
unplug the pump to clear the error.
Abnormal driving control
Replace the main board
Er52
Internal voltage too low
(unit stops working)
If this error occurs 6 mes in 60 minutes,
unplug the pump to clear the error.
Abnormal driving control
Replace the main board
Er99
VDC voltage too low protecon
(unit stops working)
If this error occurs 6 mes in 60 minutes,
unplug the pump to clear the error.
Soware error
Replace the main board
4.3 I Displaying the working parameters
• Modifying the default sengs must be performed by a qualied technician only to facilitate
maintenance or future repairs.
To access to the working parameters:
- Unlock the keypad: the main menu is displayed.
- Press for 3 seconds.
- Press and to browse through the available parameters.
The parameters that can be displayed are listed in the following table.
Code Descripon
r
1
1
Compressor discharge gas temperature
r
1
2
Compressor sucon gas temperature
r
1
3
Inlet water temperature
r
1
4
Outlet water temperature
r
1
5
Temperature evaporator
r
1
6
Outdoor ambient temperature
r
1
7
IPM temperature
r
1
8
Indoor coil temperature
r
1
9
(reserve)
EN