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INVT GD18 Drive Fault Codes List

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Complete reference list of INVT Goodrive18 (GD18) fault codes. Learn to distinguish between P-Group (Unit 1) and F-Group (Unit 2) faults, troubleshoot 2-in-1 specific errors, and reset dual-motor systems. INVT GD18 Fault Codes Reference Table Use the search bar in the table below to quickly find your specific error code. Fault Codes Cause & Solution OC1 Overcurrent during acceleration Cause : - The acceleration or deceleration is too fast; - The voltage of the grid is too low; - The power of the VFD is too low; - The load transients or is abnormal; - The grounding is short circuited or the output is phase loss; - There is strong external interference; - The overvoltage stall protection is not open. Solution : - Increase the ACC time; - Check the input power; - Select the VFD with a larger power; - Check if the load is short circuited (the grounding short circuited...
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INVT GD270 Drive Fault Codes List

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Complete reference list of INVT GD270 (Fan & Pump) fault codes. Learn to troubleshoot HVAC specific errors like Dry Run, Pipe Broken, and PID feedback loss. INVT GD270 Fault Codes Reference Table Use the search bar in the table below to quickly find your specific error code. Fault Codes Cause & Solution OUt1 Inverter unit U phase protection Cause :   1. The acceleration is too fast; 2. IGBT module fault; 3. Misacts caused by interference; 4. The connection of the driving wires is not good; 5. Grounding is not properly. Solution : 1. Increase ACC time; 2. Change the power unit; 3. Check the driving wires; 4. Inspect external equipment and eliminate interference OUt2 Inverter unit V phase protection Cause :   1. The acceleration is too fast; 2. IGBT module fault; 3. Misacts caused by interference; 4. The...
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INVT GD350A Drive Fault Codes List

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Complete reference list of INVT GD350A fault codes, encoder errors (ENC), and expansion card alarms. Learn how to use the INVT mobile app and Workshop software for diagnostics. INVT GD350A Fault Codes Reference Table Use the search bar in the table below to quickly find your specific error code. Fault Codes Cause & Solution OUt1 Inverter unit U phase protection Cause :   1. The acceleration is too fast; 2. IGBT module fault; 3. Misacts caused by interference; 4. The connection of the driving wires is not good; 5. Grounding is not properly. Solution : 1. Increase ACC time; 2. Change the power unit; 3. Check the driving wires; 4. Inspect external equipment and eliminate interference OUt2 Inverter unit V phase protection Cause :   1. The acceleration is too fast; 2. IGBT module fault; 3. Misacts caused by interfer...
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