| Error Codes & Default Description | Error 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 |
| 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 |
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| Fault 180 Starter Transition – Cprsr A |
CMR |
Transition proof signal not received 2) Proof input shunted |
| Fault 181 Starter Transition – Cprsr B |
CMR |
Transition proof signal not received 2) Proof input shunted |
| Fault 182 Starter Transition – Cprsr C |
CMR |
Transition proof signal not received 2) Proof input shunted |
| Fault 183 Starter Transition – Cprsr D |
CMR |
Transition proof signal not received 2) Proof input shunted |
| Fault 184 Phase Reversal – Cprsr A |
CMR | Phase reversed |
| Fault 185 Phase Reversal – Cprsr B |
CMR | Phase reversed |
| Fault 186 Phase Reversal – Cprsr C |
CMR | Phase reversed |
| Fault 187 Phase Reversal – Cprsr D |
CMR | Phase reversed |
| Fault 190 Low Superheat – Ckt 1 |
CMR | Superheat < 1°C during more than 1333°C x sec |
| Fault 190 Low Superheat – Ckt 2 |
CMR | Superheat < 1°C during more than 1333°C x sec |
| Fault 194 Low Evap Rfgt Temp. – Ckt 1 |
CMR |
Refrigerant temperature < Setpoint during more than 30°C x sec |
| Fault 195 Low Evap Rfgt Temp. – Ckt 2 |
CMR |
Refrigerant temperature < Setpoint during more than 30°C x sec |
| Fault 198 Low Oil Flow – Cprsr A |
CMR |
The oil flow switch is open for more than 20 sec |
| Fault 199 Low Oil Flow – Cprsr B |
CMR |
The oil flow switch is open for more than 20 sec |
| Fault 19A low Oil Flow – Cprsr C |
CMR |
The oil flow switch is open for more than 20 sec |
| Fault 19b Low Oil Flow – Cprsr D |
CMR |
The oil flow switch is open for more than 20 sec |
| Fault 19C Phase Loss – Cprsr A |
CMR |
Loss of 1 or more phases |
| Fault 19d Phase Loss – Cprsr B |
CMR |
Loss of 1 or more phases |
| Fault 19E Phase Loss – Cprsr C |
CMR |
Loss of 1 or more phases |
| Fault 19F Phase Loss – Cprsr D |
CMR |
Loss of 1 or more phases |
| Fault 1A0 Power Loss – Cprsr A |
CAR | Loss of all three phases in operation |
| Fault 1A1 Power Loss – Cprsr B |
CAR | Loss of all three phases in operation |
| Fault 1A2 Power Loss – Cprsr C |
CAR | Loss of all three phases in operation |
| Fault 1A3 Power Loss – Cprsr D |
CAR | Loss of all three phases in operation |
| Fault 1A4 Tracer Communication Loss |
IFW |
Loss of external information |
| Fault 1A5 Oil Flow Control – Cprsr A |
CMR |
Problem with the oil circuit |
| Fault 1A6 Oil Flow Control – Cprsr B |
CMR |
Problem with the oil circuit |
| Fault 1A7 Oil Flow Control – Cprsr C |
CMR |
Problem with the oil circuit |
| Fault 1A8 Oil Flow Control – Cprsr D |
CMR |
Problem with the oil circuit |
| Fault 1A9 EXV Elec Drtive Ckt – Rfgt Ckt 1 |
CMR |
1) EXV wiring 2) Defective UCM 3) Defective EXV 4) Defective EXV relay |
| Fault 1AA EXV Elec Drtive Ckt – Rfgt Ckt 2 |
CMR | 1) EXV wiring 2) Defective UCM 3) Defective EXV 4) Defective EXV relay |
| Fault 1Ad Memory Error Type I |
IFW | NOVRAM problem, the unit is placed on the default setting operating |
| Fault 1AE Low Differential Pressure – Ckt 1 |
CMR | Delta P< 2,8bar during more than 2 min |
| Fault 1AE Low Differential Pressure – Ckt 2 |
CMR | Delta P< 2,8bar during more than 2 min |
| Fault 1b2 Severe Phase Unbalance – Cprsr A |
CMR |
Phase imbalance >30%, check current transformer and unit power supply |
| Fault 1b3 Severe Phase Unbalance – Cprsr B |
CMR | Phase imbalance >30%, check current transformer and unit power supply |
| Fault 1b4 Severe Phase Unbalance – Cprsr C |
CMR | Phase imbalance >30%, check current transformer and unit power supply |
| Fault 1b5 Severe Phase Unbalance – Cprsr D |
CMR | Phase imbalance >30%, check current transformer and unit power supply |
| Fault 1b6 Compressor Overload Setting – Cprsr A |
IFW | Check the setting of the compressor overload |
| Fault 1b7 Compressor Overload Setting – Cprsr B |
IFW | Check the setting of the compressor overload |
| Fault 1b8 Compressor Overload Setting – Cprsr C |
IFW | Check the setting of the compressor overload |
| Fault 1b9 Compressor Overload Setting – Cprsr D |
IFW | Check the setting of the compressor overload |
| Fault 1bA Phase Unbalance – Cprsr A |
CMR |
Phase imbalance >15% |
| Fault 1bb Phase Unbalance – Cprsr B |
CMR |
Phase imbalance >15% |
| Fault 1bC Phase Unbalance – Cprsr C |
CMR |
Phase imbalance >15% |
| Fault 1bd Phase Unbalance – Cprsr D |
CMR |
Phase imbalance >15% |
| Fault 1bE Winding Temp – Cprsr A |
CMR | Winding temperature > 105°C Fault 1bF |
| Fault 1bF Winding Temp – Cprsr B |
CMR | Winding temperature > 105°C Fault 1bF |
| Fault 1C0 Winding Temp – Cprsr C |
CMR | Winding temperature > 105°C Fault 1bF |
| Fault 1C1 Winding Temp – Cprsr D |
CMR | Winding temperature > 105°C Fault 1bF |
| Fault 1C6 High Differential Pressure – Ckt 1 |
CMR | LB/HP pressure differential > 24,5 bar |
| Fault 1C7 High Differential Pressure – Ckt 2 |
CMR | LB/HP pressure differential > 24,5 bar |
| Fault 1d1 Memory Error Type I |
IFW | RAM error |
| Fault 1d2 Memory Error Type III |
IFW | RAM error |
| Fault 1d3 Cprsr Suction Temp Sensor – Ckt 1 |
CMR |
Defective sensor |
| Fault 1d4 Cprsr Suction Temp Sensor – Ckt 2 |
CMR | Defective sensor |
| Fault 1d7 Phase Reversal Prot Lost – Cprsr A |
CMR | Phase reversal protection is not operative |
| Fault 1d8 Phase Reversal Prot Lost – Cprsr B |
CMR | Phase reversal protection is not operative |
| Fault 1d9 Phase Reversal Prot Lost – Cprsr C |
CMR | Phase reversal protection is not operative |
| Fault 1dA Phase Reversal Prot Lost – Cprsr D |
CMR |
Phase reversal protection is not operative |
| Fault 1db Slaved EXV Elec Drive Ckt – Rfgt Ckt 1 |
CMR |
EXV electric drive defective |
| Fault 1dC Slaved EXV Elec Drive Ckt – Rfgt Ckt 2 |
CMR |
EXV electric drive defective |
| Fault 1dd High Oil Temp – Cprsr A |
CMR |
Oil temperature > 77°C |
| Fault 1dE High Oil Temp – Cprsr B |
CMR |
Oil temperature > 77°C |
| Fault 1dF High Oil Temp – Cprsr C |
CMR |
Oil temperature > 77°C |
| Fault 1E0 High Oil Temp – Cprsr D |
CMR |
Oil temperature > 77°C |
| Fault 1E1 Oil System Fault – Cprsr A |
CMR | |
| Fault 1E2 Oil System Fault – Cprsr B |
CMR | Oil temperature < condenser saturated temperature during more than 30 min |
| Fault 1E3 Oil System Fault – Cprsr C |
CMR | Oil temperature < condenser saturated temperature during more than 30 min Oil temperature < condenser saturated temperature during more than 30 min |
| Fault 1E4 Oil System Fault – Cprsr D |
CMR | Oil temperature < condenser saturated temperature during more than 30 min |
| Fault 1E5 Entering Oil Temp Sensor – Cprsr A |
CMR | Defective sensor |
| Fault 1E6 Entering Oil Temp Sensor – Cprsr B |
CMR | Defective sensor |
| Fault 1E7 Entering Oil Temp Sensor – Cprsr C |
CMR | Defective sensor |
| Fault 1E8 Entering Oil Temp Sensor – Cprsr D |
CMR | Defective sensor |
| Fault 2A1 Cond Fan Vari Speed Drive Fault – Ckt 1 |
IFW | Defective fan variator speed after 5 attempts |
| Fault 2A2 Cond Fan Vari Speed Drive Fault – Ckt 2 |
IFW | Defective fan variator speed after 5 attempts |
Note :
MMR: Machine shutdown manual reset.
MAR: Machine shutdown automatic reset.
CMR: Circuit shutdown manual reset.
CAR: Circuit shutdown automatic reset.
IFW: Informational warning.
Communication Error Codes
| Fault 410 | Loss of Local Display Panel Comm |
| Fault 412 |
Chiller Mod to Option Mod Comm Failure |
| Fault 413 |
Chiller Mod to EXV Mod Comm Failure |
| Fault 414 |
Chiller Mod to Cprsr A Mod Comm Failure |
| Fault 415 |
Chiller Mod to Cprsr B Mod Comm Failure |
| Fault 416 |
Chiller Mod Cprsr C Mod Comm Failure |
| Fault 417 | Chiller Mod to Cprsr D Mod Comm Failure |
| Fault 418 | Chiller Mod to Slv EXV Mod Comm Failure |
| Fault 431 | EXV Mod to Chiller Mod Comm Failure |
| Fault 434 | EXV Mod to Cprsr A Mod Comm Failure |
| Fault 435 | EXV Mod to Cprsr B Mod Comm Failure |
| Fault 436 | EXV Mod to Cprsr C Mod Comm Failure |
| Fault 437 | EXV Mod to Cprsr D Mod Comm Failure |
| Fault 441 |
Cprsr A Mod to Chiller Mod Comm Failure |
| Fault 443 |
Cprsr A Mod to EXV Mod Comm Failure |
| Fault 445 |
Cprsr A Mod to Cprsr B Mod Comm Failure |
| Fault 451 |
Cprsr B Mod to chiller Mod Comm Failure |
| Fault 453 |
Cprsr B Mod to EXV Mod Comm Failure |
| Fault 454 |
Cprsr B Mod to Cprsr A Mod Comm Failure |
| Fault 461 | Cprsr C Mod to Chiller Mod Comm Failure |
| Fault 463 | Cprsr C Mod to EXV Mod Comm Failure |
| Fault 467 |
Cprsr C Mod to Cprsr D Mod Comm Failure |
| Fault 471 |
Cprsr D Mod to Chiller Mod Comm Failure |
| Fault 473 |
Cprsr D Mod to EXV Mod Comm Failure |
| Fault 476 |
Cprsr D Mod to Cprsr C Mod Comm Failure |
| Fault 481 | Slv EXV Mod to Chiller Mod Comm Failure |
| Fault 483 | Slv EXV Mod to EXV Mod Comm Failure |
| Fault 484 | Slv EXV Mod to Cprsr A Mod Comm Failure |
| Fault 485 | Slv EXV Mod to Cprsr B Mod Comm Failure |
| Fault 486 | Slv EXV Mod to Cprsr C Mod Comm Failure |
| Fault 487 |
Slv EXV Mod to Cprsr D Mod Comm Failure |
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