146 StarCool Alarm Codes And Actions

146  Check system
Description Reliability calculation signals something is wrong
Cause
Trouble
shooting		 Possible causes:

  • Discrepancy between calculated compressor and expansion valve mass flow of more than 25%

Trouble shooting:

  1. Check datalog alarm parameter 3
  2. Parameter 3: 1 – 3
  3. Check pressure transmitter Psuc and Pdis respectively
  4. Check wires to pressure transmitters for cuts, bends etc.
  5. If AL9XX voltage reference Psuc/Pdis are active, check controller.
  6. Check schraeder valve or remove schraeder insert and place decal
  7. Parameter 3: 4 - 6
  8. If parameter 3 is set to 4, Unit is running FC emergency -> Replace the FC.
  9. If parameter 3 is set to 5, perform pump down to confirm valve leakage inside compressor. -> replace valve plates. Check that the expansion valve is not blocked and that it is able to open.
  10. Check schraeder valve on Psuc -> replace/remove
  11. If parameter 3 is set to 6, check refrigerant level -> top up or recharge
  12. Run compressor & valve test to confirm blockage/function on Vexp ->
  13. If Vexp is not opening, check valve with permanent magnet
  14. Check coil, wire or controller -> AL9xx voltage reference?
Criteria
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