HVAC Sales Master

Fault Code Lookup

HVAC Sales Master
52 (ICAS OPEN)
Indoor air sensor error — ICAS OPEN
This code typically points to
  • Sensor open
  • Unplugged
  • Wiring harness
Next checks to confirm
  1. Check indoor air sensor circuit for open condition, unplugged sensor, or harness fault
Escalation
Information
Reset behavior
Clears when indoor air sensor circuit returns to normal.
Informational
No action needed
Source
Trane Hyperion *AM8/TAM8 Field Reference Data, p.22
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