Error Code	Symptom	Fault Type	Guide
d0	Goodman communicating thermostat or control shows d0 and system does not respond to commands	Communication Loss with Outdoor Unit	View Details
d1	Goodman communicating thermostat shows d1 and cooling capacity is limited	Low Suction Pressure / Low Load Condition Detected	View Details
d2	Goodman communicating thermostat shows d2 and system may shut down on high pressure	High Discharge or Head Pressure Detected	View Details
d3	Goodman communicating thermostat shows d3 and compressor operation is restricted	Compressor Protection / Locked Rotor or Overcurrent Event Logged	View Details
d4	Goodman communicating thermostat shows d4 and system may not reach setpoint	Capacity Limit / Long Run Time Protection	View Details
E0	Goodman air conditioner thermostat or wall control displays E0 and system will not run	Communication Fault Between Indoor Control Board and Thermostat	View Details
E1	Goodman ductless mini-split or packaged AC displays E1 and stops cooling	Indoor/Outdoor Unit Communication Failure	View Details
E2	Goodman mini-split indoor unit shows E2 and cooling stops intermittently	Indoor Coil (Evaporator) Temperature Sensor Fault	View Details
E3	Goodman mini-split or inverter condenser shows E3 and outdoor fan or compressor will not run	Outdoor Fan Motor or Fan Feedback Fault	View Details
E4	Goodman mini-split shows E4 and shuts down during operation	High Discharge Temperature / Compressor Overheat Protection	View Details
E5	Goodman mini-split or inverter condenser displays E5 and compressor does not start or trips quickly	Compressor Overcurrent / Overload Protection Trip	View Details
E6	Goodman mini-split indoor unit shows E6 and system will not run	Indoor Fan Motor Fault	View Details
E7	Goodman mini-split shows E7 and unit stops shortly after starting	Mode Conflict or 4-Way Reversing Valve Fault	View Details
E8	Goodman mini-split indoor unit shows E8 and airflow is reduced or unit shuts down	Indoor Coil Freeze Protection / Low Evaporator Temperature	View Details
E9	Goodman mini-split displays E9 and unit will not operate	EEPROM / Memory Error on Control Board	View Details
F0	Goodman inverter condenser or mini-split shows F0 and does not start cooling	Refrigerant System Low Charge / Undercharge Protection	View Details
F1	Goodman inverter system displays F1 and shuts down	Indoor Ambient Temperature Sensor Fault	View Details
F2	Goodman inverter or mini-split shows F2 and cooling/heating is disabled	Outdoor Ambient Temperature Sensor Fault	View Details
F3	Goodman inverter condenser shows F3 and unit cycles off on high pressure	High Pressure Protection / Condenser Overpressure	View Details
F4	Goodman inverter system shows F4 and compressor does not run	Compressor Discharge Temperature Sensor Fault	View Details
F5	Goodman inverter or mini-split shows F5 and unit stops during operation	Evaporator Coil Temperature Sensor Fault (Indoor)	View Details
F6	Goodman inverter system displays F6 and compressor speed is limited or unit shuts down	Current Sensor / Inverter Module Fault	View Details
F7	Goodman inverter or mini-split shows F7 and outdoor fan or compressor operation is abnormal	Phase Loss / Phase Protection (Three-Phase Units)	View Details
F8	Goodman inverter system shows F8 and unit derates or shuts down in high ambient conditions	Outdoor Coil Temperature Sensor Fault	View Details
F9	Goodman inverter or mini-split displays F9 and system will not operate normally	Indoor-Outdoor Capacity Mismatch or Configuration Error	View Details
–	Goodman air conditioner causes breaker to trip when it starts	High Inrush Current / Electrical Short	View Details
–	Goodman air conditioner emits a musty or moldy smell when running	Biological Growth on Evaporator Coil or in Drain Pan	View Details
–	Goodman air conditioner freezes up with ice on the indoor coil or refrigerant lines	Evaporator Coil Icing	View Details
–	Goodman air conditioner indoor coil or refrigerant lines sweat excessively and drip water	Condensation on Uninsulated or Cold Surfaces	View Details
–	Goodman air conditioner indoor unit is very noisy with air rushing or whistling sounds	Excessive Air Velocity / Duct Restriction	View Details
–	Goodman air conditioner leaks water inside the house around the air handler or furnace	Condensate Drainage Failure	View Details
–	Goodman air conditioner makes a high-pitched squealing or screeching noise from the indoor unit	Indoor Blower or Motor Bearing Failure	View Details
–	Goodman air conditioner outdoor unit fan does not run but compressor is running and very hot	Condenser Fan Failure	View Details
–	Goodman air conditioner outdoor unit is very loud or rattling during operation	Excessive Vibration / Mechanical Noise	View Details
–	Goodman air conditioner outdoor unit will not turn off even when thermostat is satisfied	Stuck Contactor or Control Relay	View Details
–	Goodman air conditioner produces warm air from vents instead of cool air	Loss of Cooling / Reversing Valve or Refrigerant Issue	View Details
–	Goodman air conditioner runs but does not cool the house adequately	Insufficient Cooling Capacity / Poor Heat Transfer	View Details
–	Goodman air conditioner runs continuously and rarely shuts off	Continuous Operation / Inability to Reach Setpoint	View Details
–	Goodman air conditioner short cycles (turns on and off frequently)	Short Cycling / Improper Control or Capacity	View Details
–	Goodman air conditioner thermostat shows power but does not call for cooling	Thermostat Configuration or Wiring Issue	View Details
–	Goodman air conditioner will not start at all (no fan, no compressor)	No Power / Control Circuit Failure	View Details
–	Goodman outdoor condenser fan runs but compressor does not start	Compressor Start Failure	View Details
–	Goodman outdoor unit runs (fan and compressor) but indoor blower does not run	Indoor Blower Motor or Control Failure	View Details

Goodman Air Conditioners Error Codes

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