Carrier error codes

15 documented Carrier error codes, with meaning, probable causes and a guided diagnostic tree in the app.

DataCIQ

• APPROACH HIGH — Scale / Corrosion Fouling
• HIGH COND PRESSURE — Cooling Tower / Dry Cooler Degradation
• HIGH PRESSURE TRIP — Chiller Fault / Trip
• WATER PRESSURE LOW — Hydraulic Circuit Leak

HVACIQ

• 1 — High Pressure Cutout / HP Alarm
• 1 — Belt broken or slipping
• 21 — Water Flow Switch Alarm / No Flow
• 4 — Low Pressure Cutout / LP Alarm
• 42 — Anti-Freeze Protection / Evaporator Freeze Risk
• 42 — Damper actuator stuck
• 42 — Coil freeze protection
• 46 — Oil Pressure Differential Fault
• 46 — Oil recovery failure / olio compressore non ritorna
• AL01 — Filter pressure drop high
• AL01 — Humidifier fault

All brands