Daikin GYEQ20AN, Руководство по обслуживанию

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SiAUY361411EA Flow Charts for Troubleshooting
Troubleshooting 144
16
Abnormal Engine Room Temperature
Error
code
F7
Description
of the failure
Sub-code 0: At least two of the following conditions are true: 1) Any of intake air temperature sensors 1, 2, 3,
4 and 5 reports a temperature higher than 100°C and
2) any of oil temperature sensors 1 and 2 reports a temperature higher than 130°C.
Possible
causes
of the failure
Engine room overheated/burned; intake air temperature sensor failure; oil temperature sensor failure;
main circuit board failure
Flow chart
NO
Check Intake Air And
Oil Temperature Sensors.
NO
025879-00E
Is There Any Trace Of Engine Room
Having Reached Abnormally High Temperature
Due to Combustion or Other Reason?
YES
Are Intake Air And
Oil Temperature Sensors
Operating Normally?
YES
Check whether the sensor is
connected properly to Main
Circuit Board's Harness.
Make sure the burnout
position and please contact
your Daikin representative.
17
Short of Refrigerant
Error
code
F9
Description
of the failure Sub-code 0: The low-side refrigerant pressure is detected equal to or lower than 0.05 MPa just before startup.
Possible
causes
of the failure
Low-side pressure sensor failure; refrigerant leak
Flow chart
NO
YES
NO
Check Low-Side
Pressure Sensor.
Is Sensor Connected
Properly To Main Circuit
Board's Harness?
Check Electrical
Wiring System.
There Are Refrigerant Leaks.
Check And Repair Any Leaks.
025880-00E
Is Low-Side Pressure Sensor
Operating Normally?
YES