P00171
Carrier Transicold
Critical

System Not Equalized

System pressures did not equalize after the timeout period.

Possible causes

  • Stuck check valve
  • Solenoid valve failing to open
  • Severe system obstruction

Recommended actions

  • Verify high and low pressures with gauges
  • Inspect equalization solenoid valves
  • Check for obstructions in the expansion orifice

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