Carrier 48LC Series User Manual

38
Table 16 — SystemVu™ Controller Alarm Codes
FAULT OR ALERT
ACTION TAKEN
BY CONTROL
RESET
METHOD
PROBABLE CAUSE
F010-MBB LOW VOLTAGE Unit Shutdown Automatic
Brownout condition, low supply voltage, supply power missing
a phase.
F011-MBB REFERENCE
VOLTAGE
Unit Shutdown Automatic MBB failure or supply voltage low.
A012-MBB ZERO CROSSING Alert Generated Automatic MBB failure or supply voltage frequency too high or too low.
F013-MBB FUSE 2 OPEN Unit Shutdown Automatic
A switch input has a wiring error or the switch pulled too much
current.
F014-MBB FUSE 3 OPEN Unit Shutdown Automatic
A switch input has a wiring error or the switch pulled too much
current.
A015-MBB RNET VOLTAGE
RANGE
Alert Generated Automatic MBB failure or supply voltage low.
A016-MBB 24VDC RANGE 4-20mA inputs will be in error Automatic MBB failure or supply voltage low.
A017-MBB 5VDC RANGE
Transducer inputs will be in
error
Automatic MBB failure or supply voltage low.
F018-MBB EEPROM FAILURE Unit Shutdown Automatic Software failure or MBB failure.
A019-MBB CLOCK FAILURE
No time, date, and schedule
operation
Automatic Software failure or MBB failure.
A099-COMM LOSS WITH SIOB ON
LEN BUS
Loss of communication with IO
from SIOB board
Automatic Wiring problem between MBB and SIOB
F020-SOFTWARE ERROR Unit Shutdown Automatic Corrupt software or software failure.
A100-SAT SENSOR ERROR
No free cooling, and no SAT
limit protection
Automatic
Faulty, shorted, or open thermistor caused by wiring error or
loose connection.
A101-FST SENSOR RANGE Alert Generated Automatic
Faulty or incorrect thermistor caused by improper ohm
reading.
A102-FST OPEN SENSOR Alert Generated Automatic
Missing or open thermistor caused by wiring error or loose
connection.
A103-FST SHORTED SENSOR Alert Generated Automatic
Faulty or shorted thermistor caused by wiring error or loose
connection.
A104-OAT SENSOR RANGE
No free cooling, no low ambient
operation
Automatic
Faulty or incorrect thermistor caused by improper ohm
reading.
A105-OAT OPEN SENSOR
No free cooling, no low ambient
operation
Automatic
Missing or open thermistor caused by wiring error or loose
connection.
A106-OAT SHORTED SENSOR
No free cooling, no low ambient
operation
Automatic
Faulty or shorted thermistor caused by wiring error or loose
connection.
A107-RAT SENSOR RANGE No differential DB crossover Automatic
Faulty or incorrect thermistor caused by improper ohm
reading.
A108-RAT OPEN SENSOR No differential DB crossover Automatic
Missing or open thermistor caused by wiring error or loose
connection.
A109-RAT SHORTED SENSOR No differential DB crossover Automatic
Faulty or shorted thermistor caused by wiring error or loose
connection.
A110-SPT SENSOR RANGE No heating or cooling Automatic
Faulty or incorrect thermistor caused by improper ohm
reading.
A111-SPT OPEN SENSOR No heating or cooling Automatic
Missing or open thermistor caused by wiring error or loose
connection.
A112-SPT SHORTED SENSOR No heating or cooling Automatic
Faulty or shorted thermistor caused by wiring error or loose
connection.
A130-CIR.A SSP SENSOR RANGE Shutdown Circuit A Automatic
Faulty transducer, faulty 5-v power supply, or loose
connection.
A131-CIR.A SSP OPEN SENSOR Shutdown Circuit A Automatic
Faulty transducer, faulty 5-v power supply, or loose
connection.
A132-CIR.A SSP SHORT SENSOR Shutdown Circuit A Automatic
Faulty transducer, faulty 5-v power supply, or loose
connection.
A133-CIR.A SDP SENSOR RANGE Shutdown Circuit A Automatic
Faulty transducer, faulty 5-v power supply, or loose
connection.
A134-CIR.A SDP OPEN SENSOR Shutdown Circuit A Automatic
Faulty transducer, faulty 5-v power supply, or loose
connection.
A135-CIR.A SDP SHORT SENSOR Shutdown Circuit A Automatic
Faulty transducer, faulty 5-v power supply, or loose
connection.
A150-OUTDOOR AIRFLOW IN
CFM OPEN SENSOR
No OACFM Operations Automatic Wiring problem or configuration error.
A151-OUTDOOR AIRFLOW IN
CFM SHORTED SENSOR
No OACFM Operations Automatic Wiring problem or configuration error.
A160-OARH OPEN SENSOR No Enthalpy crossover Automatic Bad sensor, bad wiring, or incorrectly configured sensor.
A161-OARH SHORTED SENSOR No Enthalpy crossover Automatic Bad sensor, bad wiring, or incorrectly configured sensor.
A162-RARH OPEN SENSOR
No Differential Enthalpy
crossover
Automatic Bad sensor, bad wiring, or incorrectly configured sensor.
A163-RARH SHORTED SENSOR
No Differential Enthalpy
crossover
Automatic Bad sensor, bad wiring, or incorrectly configured sensor.
A164-IAQ OPEN SENSOR No IAQ Operations Automatic Bad sensor, bad wiring, or incorrectly configured sensor.
A165-IAQ SHORTED SENSOR No IAQ Operations Automatic Bad sensor, bad wiring, or incorrectly configured sensor.

Carrier 48LC Series Specifications

General

Brand	Carrier
Model	48LC Series
Category	Air Conditioner
Language	English