803 Description Cause Trouble shooting Criteria Controller action Consequence Elimination Log data Reduced refr. flow The flow of refrigerant in the system is reduced. • Expansion valve is incorrectly configured in the controller. Warning • Solenoid coil connector is defective. • Solenoid coil is defective. • Lack of refrigerant in the system. • Expansion valve is not functioning correctly. 1. Check the expansion valve version is correctly configured. Go to the Service menu, line S05 Configuration, and check the value of line F13 Valve is Version 1, Version 2 or Version 3. For further valve details, see bulletin 00143. 2. Check the resistance between the solenoid coil and the controller X19 terminal 3-4. It should be 5-6 Ω. 3. If not, remove the connector at the solenoid coil and measure the resistance directly on the solenoid coil. 4. If the resistance is ok, replace the connector for the solenoid coil. 5. If the resistance is not ok, replace the solenoid coil. 6. Measure output voltages on the connector X19 with a multimeter. It should be between 2.5-6.5 V. If not, measure the output voltages directly on the controller terminals. If still not within range, replace the main controller. If within range, replace the connector X19. 7. Check if Tsuc is showing the correct temperature, access cover is installed and sensor is mounted and insulated correctly. 8. Check if Psuc is showing the correct pressure in the bottom left corner of the display by verifying with a zero calibrated manifold. 9. Check for any possible refrigerant flow restriction. E.g. blocked (partly) filter drier, service valves fully open, recent pipe repairs or dents, etc. 10. Check that there is enough refrigerant in the system and that there are no leaks. There should be 4.5 kg in total. 11. Check Vexp with permanent magnet if opens with a firm clicking sound. 12. If alarm is still active, replace the expansion valve. When completed power cycle the unit and run the Vexp test. FT initiated alarm due to a defective expansion valve. Log X Alarm X Alarm light Off Reduced cooling capacity. Potential risk to cargo. When the alarm becomes inactive, it can be deleted. Parm 1 Parm 2 Parm 3 Parm 4 Parm 5 Step ID Tamb Psuc Pdis Result: 0 = Not run 1 = Pressure not acheived 2 = Valve defective 3 = Passed Bjerndrupvej 47 • 6360 Tinglev, Denmark • CVR/SE no.: 13 82 37 74 www.mcicontainers.com • service@starcool.com • +45 7364 3400
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