To Next PageTo Next PageWhat to do if my Carrier 50GC 06 Air Conditioner completely stops?
If your Carrier Air Conditioner stops completely, first, check the faults and alerts list to understand why it shut down. After identifying and fixing the issue, restart the unit. It's recommended to diagnose the unit in Service Test mode before running it normally and reset any faults before the control function can operate.
What does Fault F010 mean on my Carrier 50GC 06 Air Conditioner?
Fault F010 on your Carrier Air Conditioner indicates a low voltage issue, possibly due to a brownout, low supply voltage, or a missing phase in the supply power. The control system will shut down the unit, but it should automatically clear once the supply voltage rises above 19 volts AC.
What does Fault F011 mean on my Carrier 50GC 06?
Fault F011 indicates that the MBB reference voltage is out of range, usually due to an MBB failure or the supply voltage being out of range. The control system will shut down the unit. This fault should automatically clear when the DC reference voltage returns to its normal range.
What does Alert A012 mean on my Carrier Air Conditioner?
Alert A012 on your Carrier Air Conditioner signals an MBB zero crossing issue, often caused by an MBB failure or the supply voltage frequency being too high or too low. The alert should automatically clear once the supply voltage returns to the normal range.
What does Fault F013 mean on my Carrier 50GC 06 Air Conditioner?
Fault F013 on your Carrier Air Conditioner indicates that MBB Fuse 2 is open, typically due to a wiring error in a switch input or the switch pulling too much current. The control will shut down the unit, but the fault should automatically clear when the fuse temperature returns to normal.
What does Fault F014 mean on my Carrier Air Conditioner?
Fault F014 on your Carrier Air Conditioner means that MBB Fuse 3 is open. This is usually caused by a wiring error in a switch input or the switch drawing too much current. The control system will shut down the unit, and the fault should clear automatically once the fuse temperature is back in the normal range.
What does Alert A015 mean on my Carrier 50GC 06 Air Conditioner?
Alert A015 on your Carrier Air Conditioner indicates that the MBB RNET voltage is out of range, generally due to an MBB failure or the supply voltage being out of range. The alert should automatically clear when the voltage returns to its normal range.
What does Alert A016 mean on my Carrier 50GC 06?
Alert A016 on your Carrier Air Conditioner indicates that the MBB 24VDC voltage is out of range, usually due to an MBB failure or the supply voltage being out of range. When this alert is active, Analog Input numbers 6, 7, and 8 will be in error. The alert should automatically clear when the voltage rises above 19 volts DC.
What does Alert A017 mean on my Carrier 50GC 06 Air Conditioner?
Alert A017 on your Carrier Air Conditioner indicates that the MBB 5VDC voltage is out of range, typically caused by an MBB failure or the supply voltage being out of range. When this alert is active, transducer inputs will be in error. The alert should automatically clear when the voltage rises above 4.5 volts DC.
What does Fault F018 mean on my Carrier 50GC 06 Air Conditioner?
Fault F018 on your Carrier Air Conditioner indicates an MBB EEPROM failure, meaning the serial EEPROM chip on the MBB, which stores the unit’s configuration, is not responding. Recovery is automatic, but you might need to replace the MBB board. Before replacing the board, try cycling the power to the control.
General| Brand | Carrier |
|---|---|
| Model | 50GC 06 |
| Category | Air Conditioner |
| Language | English |
Essential safety guidelines, warnings, and cautions for installation and servicing.
Overview of SystemVu control system, interface, and Navigator display operation.
Step-by-step guide for unit preparation, electrical checks, and fan/motor verification.
Filter checks, accessory installation, gas heat inspection, and quick controls setup.
Detailed settings for quick setup, network, thermostat, sensors, CCN, and accessories.
Configuring inputs, dampers, schedules, and service test procedures.
Executing cooling, heating, and automatic test procedures for system verification.
Third-party controls, input/output configurations, and general unit operation.
Methods for determining demand and configuring setpoints based on sensors and occupancy.
Details on indoor fan operation, fan speed settings, and cooling modes.
Humidi-MiZer system, reheat, dehumidification, and heating control strategies.
Economizer operation, minimum ventilation, and indoor air quality control.
Free cooling functions, network protocols (CCN/BACnet), and IAQ purge.
Diagnosing unit stoppages, faults, alerts, and common alarm codes.
Status LEDs, communication failures, and resistance checks for control modules.
Detailed troubleshooting for cooling, Humidi-MiZer, economizer, and heating systems.
Phase protection, thermistor, and transducer troubleshooting procedures.
Overview of main system components including the Main Base Board and IGC Board.
Connecting to the CCN network, wiring requirements, and communication bus details.
Reference guides for SystemVu controller display menus: Run Status, Alerts/Faults, Service, Inputs, Outputs.
Log for recording unit settings, space setpoints, temperature demand, and clock configurations.
Checklist for pre-start-up verification, electrical checks, and temperature/pressure readings.
