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Störungscode F04_Mini_ECOi

(ECOi-Geräte)

Compressor Discharge Temperature Sensor Error

1. Error Detection Method

It is judged an error based on the criteria listed below.

  • Open circuit or Short circuit
  • When compressor stopped temporally, even after 20 minutes passed, over 103°C of discharge temperature is detected.
  • Compressor stopped and remained over 60 minutes but over 93°C of discharge temperature is detected.

2. Error Diagnosis

1
Sensor
1-1 Sensor connector is connected to PC board properly. Yes 1-2
No Reconnect and check
1-2 Sensor is correctly installed at holder side. Yes Replace sensor
No Correct and see what happens. 1-3
1-3 Abnormal temperature exists even after replacing sensor. Yes 2-1
No See what happens.
2
PC board
2-1  Resistance between connector pins on PC board is less than 1 k ohm  Yes Replace PC board
No 2-2
2-2 Abnormal temperature exists even after replacing PC board.  Yes  3-1
No See what happens.
3
Operating status
3-1 Peripheral temperature of outdoor unit is over 46°C. Yes  Correct
No 3-2 
3-2 Tends to have insufficient refrigerant charge in the system. Yes  Adjust the amount of refrigerant
No  3-3 
3-3 Check noise.

 

 


 

 

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