Green Energy Inverter Eco 10, User And Service Manual

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20
board
EE 25
Compressor phase
failure
Compressors U, V, W are
connected to one phase or two
phases
Check the actual wiring according to the
circuit diagram
EE 26
Four-way valve
reversal failure
1. Four-way valve reversal
failure
2. Lack of refrigerant (no detect
when T3 or T5 malfunction)
1. Switch to Cooling mode to check the
4-way valve if it has been reversed
correctly
2. Change a new 4-way valve
3. Fill with gas
EE27
EEPROM data read
malfunction
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
EE28
The inter-chip
communication
failure on the main
control board
Main board failure
1. Turn off electricity supply and restart it
2. Change a new main board
PP 01
Inlet water
temperature sensor
failure
1. The sensor failure or short
circuit
2. The wiring of sensor is loose
1. Re-fix the wiring of the sensors
2. Change the sensor
PP 02
Outlet water
temperature sensor
failure
1. The sensor failure or short
circuit
2. The wiring of sensor is loose
1. Re-fix the wiring of the sensors
2. Change the sensor
PP 03
Heating piping
sensor failure
1. The sensor failure or short
circuit
2. The wiring of sensor is loose
1. Re-fix the wiring of the sensors
2. Change the sensor
PP 04
Gas return sensor
failure
1. The sensor failure or short
circuit
2. The wiring of sensor is loose
1. Re-fix the wiring of the sensors
2. Change the sensor
PP 05
Ambient
temperature sensor
failure
1. The sensor failure or short
circuit
2. The wiring of sensor is loose
1. Re-fix the wiring of the sensors
2. Change the sensor
PP 06
Exhaust piping
sensor failure
1. The sensor failure or short
circuit
2. The wiring of sensor is loose
1. Re-fix the wiring of the sensors
2. Change the sensor
PP 07
Antifreeze
protection in
Winter
Ambient temperature or water
inlet temperature is too low
Normal protection
PP 08
Low ambient
temperature
protection
1. Beyond the scope of using
environment
2. Sensor abnormality
1. Stop using, beyond the scope of using
2. Change the sensor
PP 10
Piping temperature
too high protection
under cooling mode
1. Ambient temperature is too
high or the water temperature is
too high in cooling mode
2. Refrigeration
system is
abnormal
1. Check the scope of using
2. Check refrigeration system