To Next PageTo Next PageWhat to do if my Carrier 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?
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 Air Conditioner?
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 50GC 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?
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?
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 Air Conditioner?
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 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 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 Series |
| Category | Air Conditioner |
| Language | English |
General safety precautions for installation and servicing of HVAC equipment.
Caution against shorting or bypassing electronic control components to prevent damage.
Warning about hazards associated with flammable vapors and liquids near appliances.
Checks for unit installation compliance and proper readiness.
Procedure to check and correct compressor rotation direction.
Lists common configurations set during startup.
Describes the initial startup process for the SystemVu controller.
How to run the System Auto Test for unit verification.
Steps to configure CCN communication settings.
Setting up operating schedules for occupancy and times.
Executing automatic tests for system components.
Configuring factory options and field accessories.
Defining temperature control based on thermostat or sensor input.
Factors affecting unit occupancy and set points.
Details on the nine operating sub-modes for cooling.
How the unit determines and requests cooling stages.
How compressor control works with staging and time guards.
Operation of Humidi-MiZer system for improved dehumidification.
How dehumidification demand is seen by the control.
Description of the three operating sub-modes for heating.
How heat stage relay control energizes or de-energizes relays.
Determining and adding heating stages based on demand and temperature limits.
How the IGC initiates gas heat module start-up and monitors components.
Operation of the economizer for ventilation and cooling.
Algorithm to maintain building space temperature during unoccupied periods.
Overview of system alerts and faults, and their indications.
Conditions that can cause a complete unit stoppage.
Steps to restart the machine after a shutdown.
Viewing and clearing unit alarms and identifying faults.
Troubleshooting suction and discharge pressure transducers.
Layout of the Settings main menu, covering space setpoints and clock adjustments.
Configuration settings for network protocols, BACnet, and display options.
Continued service configuration settings for inputs and outputs.
Quick setup configurations for unit and network settings.
Main menu layout for accessing alerts and faults.
Layout for the Service menu, covering unit tests and information.
Service menu for advanced service functions and restricted access.
Layout of the Inputs menu, detailing temperature, pressure, and switch inputs.
Continued Inputs menu layout for network values and sensor configurations.
Layout of the Outputs menu, detailing general, cooling, and heating outputs.
Reference for Navigator display items under Service Test for various component tests.
Reference for Navigator display items under Inputs, including thermostat, switch, analog, and general inputs.
Reference for Navigator display items under Outputs, covering general, cooling, and heating outputs.
Reference for Navigator display configurations for general, indoor fan, and economizer settings.
Continued configuration settings for network, display, and security.
Reference for Navigator display settings related to time, date, and daylight savings.
Continued reference for Navigator display settings related to schedules and holidays.
Reference for Navigator display items related to current and history alarms.
Maintenance tables for SystemVu controller CCN, covering modes and test modes.
Maintenance tables detailing power reset and alarm reset events.
Configuration tables for unit settings, temperature demands, and clock adjustments.
Service configuration tables for display settings, quick setup, and various input/output assignments.
Configuration tables for schedules, network settings, and BACnet parameters.
Configuration tables for alarm definitions, holidays, and occupancy settings.
Table listing setpoint values for various operating modes.
Layout for the Settings menu, covering space setpoints, temperature demands, and clock adjustments.
Continued layout of the Settings menu, including unit configurations, input/output assignments, and network settings.
Verification steps before starting the unit.
Initial start-up procedures for electrical, temperature, and pressure checks.
Step-by-step procedures for starting up the Humidi-MiZer system.
