Trane UCM-CLD - Diagnostic Codes - Faults 87 to Fd

Diagnostics
17RLC-SVU02F-E4
Default description
Displayed Code Type Description
Fault 87
Check External Chilled Water Setpt : IFW - Value out of range
Fault 89
Check External Current Limit Setpt : IFW - Value out of range
Fault 8A
Chilled Water Flow (Ent Wtr Temp) : MMR 1) Entering water temperature < leaving WT
2) No water flow
3) Defective EVP sensor
Fault 8E
Evaporator Entering Water Temp Sensor : MMR - Defective sensor
Fault 8F
Condenser Rfgt Temp Sensor - Ckt 1 : MMR -Defective sensor
Fault 90
Condenser Rfgt Temp Senspr - Ckt 2 : MMR - Defective sensor
Fault 93
Evaporator Rfgt Temp Sensor - Ckt 1 : MMR - Defective sensor
Fault 94
Evaporator Rfgt Temp Sensor - Ckt 2 : MMR - Defective sensor
Fault 9A
Condenser Entering Water Temp Sensor : IFW - Defective sensor
Fault 9b
Condenser Leaving Water Temp Sensor : IFW - Defective sensor
Fault A0
Zone Temp Sensor : IFW - Defective sensor
Fault A1
Outdoor Air Temp Sensor : IFW - Defective sensor
Fault Ab
Evaporator Leaving Wtr Temp Sensor : MMR - Defective sensor
Fault b5
Low Pressure Cutout - Ckt 1 : CMR - LP pressure switch open
Fault b6
Low Pressure Cutout - Ckt 2 : CMR - LP pressure switch open
Fault bA
Overload trip - Cprsr A : CMR - Current exceeded
Fault bb
Overload Trip - Cprsr B : CMR - Current exceeded
Fault bC
Overload trip - Cprsr C : CMR - Current exceeded
Fault bd
Overload trip - Cprsr D : CMR - Current exceeded
Fault bE
High Pressure Cutout - Cprsr C : CMR - HP too high
Fault bF
High Pressure Cutout - Cprsr D : CMR - HP too high
Fault C5
Low Chilled Water Temp (Unit Off) : IFW - Antifreeze protection
Fault C6
Low Chilled Water Temp (Unit On) : MAR - Antifreeze protection
Fault CA
Contactor - Cprsr A : MMR - Welded compressor contactor
Fault Cb
Contactor - Cprsr B : MMR - Welded compressor contactor
Fault CC
Contactor - Cprsr C : MMR - Welded compressor contactor
Fault Cd
Contactor - Cprsr D : MMR - Welded compressor contactor
Fault d7
Over Voltage : MAR - Voltage 10% > nominal
Fault d8
Under Voltage : MAR - Voltage 10% < nominal
Fault Ed
Chilled Water Flow Interlock : MAR - Flow switch open more than 6 sec.
Fault F5
High Pressure Cutout - Cprsr A : MMR - HP too high
Fault F6
High Pressure Cutout - Cprsr B : MMR - HP too high
Fault Fd
Emergency Stop Input : MMR - Emergency stop input open