Trane CXAU - Alarm Troubleshooting

45PKGP-SVX19A-EN
Alarm Troubleshooting
Item Diagnostic or Protection Description Category Solution
1 1# Low Water Flow Unit All systems perform alarm and stop process
2
1# Flow Switch Error Unit The unit is prohibited from starting
3
1# Large Di󰀨 for EWT and LWT in Heating Unit All systems in the unit perform the system unloading process
4 1# EWT and LWT Abnormal Unit All systems in the unit perform the system unloading process
5 1# Anti-Freezing 1 Unit Perform relevant actions
6 1# Anti-Freezing 2 Unit Perform relevant actions
7 1# Outdoor Air Temp Out of Range Unit All systems in the unit perform the system unloading process
8 1# Entering Water Temp Sensor Unit/air conditioning system System alarm stop and process
9 1# Leaving Water Temp Sensor Unit/air conditioning system System alarm stop and process
10
1# Outdoor Air Temp Sensor Unit All systems of the unit perform the system o󰀪oading process
11 1# Conguration Error Unit Cannot start
12
1# EEPROM Error Unit Continue to run automatically
13 1# High Inlet Water Temp Limit Unit Reserved
14
1# High Outlet Water Temp Limit Unit Reserved
15 1# Sub Board Comm Loss Unit Alarm
16 1# Rem 1 Reserved
17
1# Compressor Overload Ckt1 system System alarm stop and process
18 1# Fan Overload Ckt1 system System alarm stop and process
19 1# Current Abnormal Comp1A system System alarm stop and process
20
1# Current Abnormal Comp1B system System alarm stop and process
21 1# High Pressure Protection Ckt1 system System alarm stop and process
22 1# Low Pressure Protection Ckt1 system System alarm stop and process
23 1# Discharge Temp Protection Ckt1 system System alarm stop and process
24 1# Low Superheat Ckt1 system System alarm stop and process
25 1# Discharge Pressure Sensor Ckt1 system System alarm stop and process
26 1# Suction Pressure Sensor Ckt1 system System alarm stop and process
27
1# Refrigerant Leackage Ckt1 system System alarm stop and process
28 1# Discharge Temp Sensor Ckt1 system System alarm stop and process
29 1# Coil Temp Sensor Ckt1 system System alarm stop and process
30 1# Suction Temp Sensor Ckt1 system System alarm stop and process
31
1# High Suction Temp Ckt1 system System alarm stop and process
32 1#Rem 2 Reserved
33 1# Compressor Overload Ckt2 system System alarm stop and process
34
1# Fan Overload Ckt2 system System alarm stop and process
35 1# Current Abnormal Comp2A system System alarm stop and process
36 1# Current Abnormal Comp2B system System alarm stop and process
37 1# High Pressure Protection Ckt2 system System alarm stop and process
38
1# Low Pressure Protection Ckt2 system System alarm stop and process
39 1# Discharge Temp Protection Ckt2 system System alarm stop and process
40 1# Low Superheat Ckt2 system System alarm stop and process
41
1# Discharge Pressure Sensor Ckt2 system System alarm stop and process
42 1# Suction Pressure Sensor Ckt2 system System alarm stop and process