Error code
Remote control:
7-segment display:
LED
Green
Red
Keep
flashing
*1
Content
–
E36-1
5.Troubleshooting
Diagnosis
Countermeasure
Is there any
leak of refrigerant?
YES
NO
Is the
refrigerant amount charged
properly?
NO
NO
Is the
sensor connector inserted
to the connector on control
PCB properly?
YES
YES
Is there any anomaly of
discharge pipe temperature sensor?
YES
NO
Does
the valve of gas injection
circuit (SVINJ1) activate
normally?
NO
NO
Does EEVLB activate
normally?
YES
NO
Does the
refrigerant flow through
EEVLB main
body?
YES
YES
Specify the leak point and
rectify it.
Check the refrigerant
amount and charge
additionally.
Check the connector and
wirng harness and rectify
it.
Check the output and
replace the sensor.
Check the coil of solenoid
valve or the sensor and
replace it.
Replace the coil EEVLB
Replace the EEVLB main body.
( If there is no refrigerant in
liquid line, charge refrigerant
additional)
Check refrigerant amount
again.
If discharge pipe temperature
sensor detects anomalous high
temperature
If discharge pipe temperature
sensor detects 150°C or higher
for 2 seconds or compressor
stops 5 times within 60 minutes
• Discharge pipe temperature
sensor anomaly
• Control PCB anomaly
• Leakage of refrigerant
• Lack of air flow volume
• Injection circuit malfunction
• Excessive suction superheat
due to malfunction of EEV
operation.
Note:
*1 E36-1: 1-time flash
1. Applicable model
All models
2. Error detection method
3. Condition of error displayed
4. Presumable cause
Condensing
unit
Discharge pipe
temperature anomaly
User Guide | Optyma™ iCO2
© Danfoss | Climate Solutions | 2023.01 | LCA012A030
BC408445719305en-000101 | 49
