Ferroli OMNIA M 3.2 22T Manual De Instalación Y Del Propietario página 148

ERROR MALFUNCTION OR
CODE PROTECTION
Inverter module protection
Anti-freeze mode protection
High temperature protection
of refrigerant outlet temp, of
condenser.
Water inlet temperature is
higher than water outlet in
heating mode
148
EN
OMNIA M 3.2
FAILURE CAUSE AND CORRECTIVE ACTION
1. Power supply voltage of the unit is low, increase the power voltage to the
required range.
2. The space between the units is too narrow for heat exchange. Increase
the space between the units.
3. Heat exchanger is dirty or something is block on the surface. Clean the
heat exchanger or remove the obstruction.
4. Fan is not running. Fan motor or fan is broken, Change a new fan or fan
motor.
5. Over charge the refrigerant volume. Recharge the refrigerant in right
volume.
6. Water flow rate is low, there is air in system, or pump head is not enough.
Release the air and reselect the pump.
7. Water outlet temp sensor is loosen or broken, reconnect it or change a
new one.
8. Water tank heat exchanger is smaller than the required 1.7m2. (1016kW
unit) or 1.4m2 (5-9kW unit).
9. Module wires or screws are loosen. Reconnect wires and screws. The
Thermal Conductive Adhesive is dry or drop. Add some thermal conductive
adhesive.
10. The wire connection is loosen or drop. Reconnect the wire.
11. Drive board is defective, replace a new one.
12. If already confirm the control system has no problem, then compressor is
defective, replace a new compressor.
Unit will return to the normal operation automatically.
1. Heat exchanger cover is not removed. Remove it.
2. Heat exchanger is dirty or something is block on the surface. Clean the
heat exchanger or remove the obstruction.
3. There is no enough space around the unit for heat exchanging.
4. fan motor is broken, replace a new one.
1. Check the resistance of the sensor.
2. The water inlet/outlet sensor wire connector is loosen. Reconnect it.
3. The water inlet/outlet (TW_in /TW_out) sensor is broken, Change a new
sensor.
4. Four-way valve is blocked. Restart the unit again to let the valve change
the direction.
5. Four-way valve is broken, change a new valve.
Cod. 3QE47660 - Rev. 00 - 02/2022
22T÷30T