Carrier 48LC 24

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Table 13 — SystemVut Controller Alarm Codes (co nt)

FAULT OR ALERT

ACTION TAKEN BY

CONTROL

RESET

METHOD

PROBABLE CAUSE

A210--- GENERAL STATUS Alert Generated Automatic General Switch activation or wrong configuration

F211--- GENERAL STATUS Unit Shutdown Automatic General Switch activation or wrong configuration

F310 --- CIRA DOWN DUE TO FAIL Shutdown Circuit A Manual Compressors have 3 strikes or has been locked out by another alarm

F311--- CIRA LOW CHARGE Shutdown Circuit A Manual Low refrigerant or faulty pressure transducer

A312--- CIR.A UNEXPECTED OFF Strike for active compressors Automatic Compressor failure, transducer failure, or nuisance operating conditions

A313--- CIR.A HIGH DISCHARGE Unload compression and up

ODF to High cool speed

Automatic An overcharged system, high outdoor ambient temperature coupled with

dirty outdoor coil, plugged filter drier, or ODF speeds being set too low.

A314--- CIR.A H PS TRIP Add compressor strikes Automatic An overcharged system, high outdoor ambient temperature coupled with

dirty outdoor coil, plugged filter drier, or ODF speeds being set too low.

A315--- CIR.A LOW DISCHARGE Add compressor strikes Automatic An undercharged system, low outdoor ambient temperature coupled with

dirty outdoor coil, plugged filter drier, or ODF speeds being set too high

A316--- CIR.A LOW SUCTION Add compressor strikes Automatic Low refrigerant charge, dirty filters, evaporator fan turning backwards, loose

or broken fan belt, plugged filter drier, faulty transducer, excessively cold

return air , or stuck open economizer when the ambient temperature is low.

A317--- CIR.A PRESSURE RATIO Add compressor strikes Automatic Low refrigerant charge, plugged filter drier, faulty transducer, the ambient

temperature is low and the ODFs are running too fast.

F318--- COMPRESSOR STUCK ON Unit in Safety Shutdown Manual WeldedcontactororfrozencompressorrelayonMBB

F319--- C.A1 DOWN DUE TO FAIL Lockout Compressor A1 Manual Compressor A1 has 3 strikes or has been locked out by another alarm

A320--- C.A1 REVERSE ROTATION Add Strike for compressor A1 Automatic Wiring causing reverse rotation or faulty compressor

A321--- C.A1 FAIL TO PRESSURE Add Strike for compressor A1 Automatic Wiring causing reverse rotation or faulty compressor

F322--- C.A2 DOWN DUE TO FAIL Lockout Compressor A2 Manual Compressor A2 has 3 strikes or has been locked out by another alarm

A323--- C.A2 REVERSE ROTATION Add Strike for compressor A2 Automatic Wiring causing reverse rotation or faulty compressor

A324--- C.A2 FAIL TO PRESSURE Add Strike for compressor A2 Automatic Wiring causing reverse rotation or faulty compressor

A410--- IGC IGNITION FAILURE Lockout Heat Automatic Faulty wiring of the IGC, no gas flow, or wrong configuration

F411--- ROLLOUT WITHOUT HEAT Unit in Safety Shutdown Automatic Faulty wiring of the IGC, or rollout switch trip without a heat call

F412--- RUN AWAY HEAT Unit in Safety Shutdown Automatic Heat stuck on causing high SAT, or low air flow

A510--- INDOOR FAN STATUS Alert Generated Automatic Belt broke, moto r failure, or configuration error.

F511--- IDF OFF WHEN COMMAND ON Unit Shutdown Manual Fan stuck on, or Configuration incorrect.

F512---IDFONWHENCOMMANDOFF Unit Shutdown Manual Tripped Circuit Breaker. Broken belt. Bad indoor fan motor. Configuration

incorrect.

F600--- IDF VFD COMMUNICATION Unit Shutdown Automatic Communication failure, noise on the bus, wiring error , or configuration error.

F601--- IDF VFD UNEXPECTED Unit Shutdown Automatic VFD fault, refer to VFD section

F602--- IDF VFD LOCKOUT Unit Shutdown Power Cycle VFD locked itself out

A603--- IDF VFD IN HAND Alert Generated Automatic VFD keypad used to put the VFD in hand or off mode

F604--- IDF VFD IN HAND Unit Shutdown Automatic VFD keypad used to put the VFD in hand or off mode

A605--- IDF VFD THERMAL WARNING IDF speed reduced Automatic Motor impro per size, motor overload, or configuration errors

A606--- IDF VFD VOLTAGE WARNING IDF speed reduced Automatic Motor improper size, motor overload, or configuration errors

A607--- IDF VFD CURRENT LIMIT IDF speed reduced Automatic Motor improper size, motor overload, or configuration errors

A608--- IDF VFD WARNING IDF speed reduced Automatic Motor improper size, motor overload, or configuration errors

F611--- IDF VFD EARTH FAULT Unit Shutdown Automatic VFD fault, refer to VFD section

F612--- IDF VFD CTL WORD LOS S Unit Shutdown Automatic VFD fault, refer to VFD section

F613--- IDF VFD OVER CURRENT Unit Shutdown Automatic VFD fault, refer to VFD section

F614---IDFVFDMOTOROVERTEMP Unit Shutdown Automatic VFD fault, refer to VFD section

F615--- IDF VFD OVERLOAD Unit Shutdown Automatic VFD fault, refer to VFD section

F616--- IDF VFD UNDER VOLTAGE Unit Shutdown Automatic VFD fault, refer to VFD section

F617--- IDF VFD OVER VOLTAGE Unit Shutdown Automatic VFD fault, refer to VFD section

F618--- IDF VFD SHORT CIRCUIT Unit Shutdown Automatic VFD fault, refer to VFD section

F619--- IDF VFD MAIN PHASE LOSS Unit Shutdown Automatic VFD fault, refer to VFD section

F620--- IDF VFD PHASE U LOSS Unit Shutdown Automatic VFD fault, refer to VFD section

F621--- IDF VFD PHASE V LOSS Unit Shutdown Automatic VFD fault, refer to VFD section

F622--- IDF VFD PHASE W LOSS Unit Shutdown Automatic VFD fault, refer to VFD section

F623--- IDF VFD CONTROL VOLTAGE Unit Shutdown Automatic VFD fault, refer to VFD section

F624--- IDF VFD SUPPLY VDD Unit Shutdown Automatic VFD fault, refer to VFD section

A700--- ECON NOT MODULATING Alert Generated Automatic No economizer motion. Check damper blades, gears, and actuator. Actuator