Carrier 33AW-RC1 - Fault Code Table

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Operational and connection information
Fault Code Table
Code Fault
2 Safety Input
3 Enter water Temperature Sensor (EWT)
4 Actual Refrigerant Temperature Sensor (TR)
5 Outdoor Air Sensor of GMC
6 Loss communication to NUI control
7 NUI control Room Sensor
9 Flow Switch error / Water Pump
10 EEProm Corrupt
13 Loss Communication to RS485 (system conguration type 6)
14 Loss of Signal From inverter board or High Temperature Release
15 Exit water Temperature Sensor (LWT)
16 Alarm test
17 Inverter Air Sensor (TO)
18 G-Tr inverter short circuit protection
20 Compressor position Detection Circuit error
21 Inverter Current Sensor error
22 Heat Exchanger Sensors (TE) / (TS)
23 Discharge Temperature Sensor (TD)
24 Outdoor Fan motor error
26 Other unit error
27 Compressor Lock
28 Discharge Temperature error
29 Compressor Breakdown
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129H45_GB_print2.indd 17 20/09/11 12.53