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Clear 11:
Compressor thermistor error
Hydraulic Unit LED:
Green 7 flashes / Red 2 flashes
Outdoor Unit LED:
flash
Probable causes:
• Misconnection
•
Sensor failure
•
Main PCB failure
Check:
Clear 11:
1 Check the sensor connection:
-
See if the connector has been removed
-
See if the connection is correct
-
Check for any damage on the sensor cable
After solving the misconnection problem, switch the heat pump back on
2 Remove the sensor and check its resistance value :
- Check the resistance value
Temperature (°C) 0
5
10 15 20 30 40 50
Resistance (k
Ω
) 168 130 101 79 63 40 26,3 17,8
Temperature (°C) 60 70 80 90 100 120
Resistance (k
Ω
) 12,3 8,7 6,3 4,6 3,4
2
- If the thermistor is faulty, replace it
OK
OK
3 Check the electronic board voltage:
Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor (DC5 0V)
WO*A060LFCA
WO*A080LFCA
WO*A100LFTA
- If there is no voltage, replace Main PCB
EXP VALVE
PIPE
DISCHARGE PIPE
OUTDOOR TEMP
COMPRESSOR
TEMP
COMPRESSOR
TEMP
EXP VALVE
OUTDOOR
TEMP
DISCHARGE
PIPE
PIPE
EXP VALVE
COMPRESSOR
TEMP
OUTDOOR
TEMP
PIPE
DISCHARGE
PIPE
Maintenance document "1792 - EN"
Split system single phase type
- 16 -
WOYA060LFCA
WOYA080LFCA
WOYA100LFTA