Outdoor Alarms and Alerts
Which Alarm do you have?
Outdoor
Alarms begin with an A, and are in red buttons
Alerts begin with a T, and are in yellow buttons
When looking at fault codes, especially at the EcoNet thermostat, pay close attention to the description and the suffix at the end. Don't chase a rabbit down the wrong hole by looking at a fault and not knowing which unit has the fault.
Anytime you report a fault to your distributor, provide the complete fault code and description, not just the number.
_O means Outdoor Unit
_A means Air Handler
_F means Furnace
_C means Communication
_S means System
_Z means Zoning
If you are looking for faults related to the Outdoor unit, you are in the right place because the fault ends in _O. If you are looking for a fault that has a suffix other than _O, you will need to use your back button and navigate to the appropriate product family to see alarms for those.
The Alarm or Alert I need help with is...
A115_O: EXV Sensor Measurement Error
A900_O: Identity Fault
T901_O: Compressor Overcurrent
T902_O: Envelope Protection
T903_O: PFC Overcurrent
T904_O: DC Bus Overvoltage
T905_O: DC Bus Undervoltage
A906_O: AC Input Overvoltage
A907_O: AC Input Undervoltage
T908_O: PIM Overtemp
T909_O: PFC Over-temp
A910_O: Lost Rotor Position
T911_O: Current Imbalance
A912_O: Micro Fault
A913_O: PIM Sensor Open
T914_O: DC Voltage Low
T916_O: Discharge Temperature
T917_O: PIM Temp High
T918_O: PPFC Temp High
A919_O: PFC/DSP Comm FaultA920_O: COM/DSP Comm Fault
A921_O: PFC Temp Sensor Open
T922_O: PIM Temp Foldback
T923_O: High Refrigerant Pressure
A923_O: High Refrigerant Pressure
A925_O: Compressor Model Unknown
A926_O: HP Sensor Not Configured
A927_O: DLT Sensor Open
A928_O: Locked
A929_O: 240V Missing/Comm Failure
A930_O: Identity Fault
A950_O: Configuration Data Restore Failure
A951_O: Memory Card Data Write Failure
T952_O: Outdoor Temperature Thermistor Failure
A953_O: Coil Temperature Thermistor Failure
A954_O: Suction Temperature Thermistor Failure
T955_O: Compressor Temperature Thermistor Failure
A956_O: Suction Pressure Sensor Failure
T957_O: Low Refrigerant Pressure
A957_O: Low Refrigerant Pressure
T958_O: High Refrigerant Pressure
A958_O: High Refrigerant Pressure
T959_O: Compressor Heater On (Normal Operation)
T960_O: Compressor Lube Protection
T961_O: Compressor Discharge Temperature High
A962_O: Inverter/Compressor Mismatch
A970_O: Inverter/Compressor Mismatch
T971_O: Compressor Lube Protection
T972_O: Compressor Discharge Temp High
T973_O: Stator Heat Overcurrent
T999_O: Unknown Inverter Fault
