To Next PageTo Next PageWhat does Alert A110 mean on my Carrier Air Conditioner?
Alert A110 on your Carrier Air Conditioner indicates that the SPT sensor is out of range. This is usually due to a faulty thermistor or an incorrect thermistor caused by improper ohm reading. When this alert is active, cooling and heating will not operate.
What to do if Carrier Heat Pump LCD shows strange characters or a blank display?
If you're experiencing general LCD problems (strange characters, blank display) when switching on your Carrier Heat Pump, check the following: 1. Ensure the software in the flash is correct. 2. Verify the pLAN address of the pCOc and on the terminal, ensuring they comply with the requirements of the current application. 3. Check the connection between the Graphic terminal and the ?PC MEDIUM board.
What to do if my Carrier 50FF 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 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 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 A105 mean on my Carrier Air Conditioner?
Alert A105 on your Carrier Air Conditioner indicates an open OAT sensor, generally caused by a faulty thermistor or an open thermistor due to a wiring error, or a loose connection. When this alert appears, the economizer will not operate for cooling.
What does Alert A103 mean on my Carrier 50FF Air Conditioner?
Alert A103 on your Carrier Air Conditioner indicates a shorted FST sensor, typically caused by a faulty thermistor, a shorted thermistor due to a wiring error, or a loose connection. This alert resets automatically.
What does Alert A104 mean on my Carrier 50FF Air Conditioner?
Alert A104 on your Carrier Air Conditioner indicates that the OAT sensor is out of range. This is usually due to a faulty thermistor, a shorted or open thermistor caused by a wiring error, or a loose connection. When this alert is active, the economizer will not operate to provide cooling.
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.
What does Alert A016 mean on my Carrier 50FF?
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.
General| Series | 50FF |
|---|---|
| Refrigerant | R-410A |
| Product Type | Air Conditioner |
| Cooling Capacity | 1.5 to 5 Tons |
| Operating Voltage | 208/230V |
| Dimensions (H x W x D) | Varies by model |
| Weight | Varies by model |
