Growatt Service Center Lahore

Growatt Solar Inverter Troubleshooting: Authorized Growatt Service Center Lahore

Growatt solar inverters are renowned for their efficiency and reliability in harnessing solar energy. However, like all sophisticated equipment, they may occasionally encounter issues that require professional attention. In Lahore, Tetralink Technologies stands as the Authorized Growatt Service Center Lahore, offering expert solutions to ensure your system operates seamlessly.

Why Choose Tetralink Technologies?

Authorized Growatt Service Center Lahore: Tetralink Technologies is officially recognized by Growatt, ensuring that your inverter is serviced according to the manufacturer’s standards.
Expert Engineers: Our team has undergone specialized training in China, equipping them with the skills to diagnose and repair Growatt inverters effectively.
Genuine Parts: We use only original Growatt components, guaranteeing the longevity and reliability of your inverter post-repair.
Avoid Unqualified Repairs: Entrusting your inverter to unqualified electricians can lead to improper handling, voided warranties, and further complications.

Common Growatt Inverter Error Codes and Recommended Actions

Understanding the error codes displayed by your Growatt inverter can provide insight into potential issues. Below is a table summarizing common error codes, their descriptions, and suggested actions:

Here is the comprehensive table of Growatt inverter error codes, descriptions, and troubleshooting steps:

Error Code	Description	Troubleshooting
No AC Connection	No utility grid connected or utility grid power failure	Check your AC isolator or circuit breaker. If both the isolator and circuit breaker are ‘on’ and the problem persists, submit a maintenance service request.
AC V Outrange	Utility grid voltage is out of permissible range	This could occur during peak summer months when solar activity is high. If the problem persists, submit a maintenance service request.
AC F Outrange	Utility grid frequency is out of permissible range	This could occur during peak solar production months. If the problem persists, submit a maintenance service request.
Over Temperature	Temperature out of range	Restart the inverter. Ensure it is not covered or in direct sunlight causing overheating. If the issue persists, contact Growatt.
PV Isolation Low	Insulation problem	Submit a maintenance service request to your installer.
Output High DCI	Output current DC offset too high	Restart the inverter. If the issue persists, submit a maintenance service request.
Residual I High	Leakage current too high	Restart the inverter. If the problem persists, submit a maintenance service request.
PV Voltage High	DC input voltage exceeds maximum tolerable value	Disconnect the DC switch immediately and turn off the system. Submit a maintenance service request.
Auto Test Failed	Auto test did not pass	Restart the inverter. If the issue persists, contact Growatt.
100	Voltage fault	Submit a maintenance service request to your installer.
101	Communication fault	Turn off the DC switch and restart the inverter. If the problem persists, submit a maintenance service request.
102	Master and slave processor data mismatch	Turn off the DC switch and restart the inverter. If the problem persists, submit a maintenance service request.
116	EEPROM fault	Restart the inverter. If the fault is sustained, the control board may need replacement. Contact Growatt.
117	Relay fault	Restart the inverter. If the issue persists, submit a maintenance service request.
118	Init model fault	Submit a maintenance service request to your installer.
119	GCFI device damage	Restart the inverter 2-3 times. If the issue persists, submit a maintenance service request.
120	HCT fault	Restart the inverter. If the problem persists, submit a maintenance service request.
121	Communication fault between master and slave	See error codes 101 and 102 for troubleshooting steps.
122	Bus voltage fault	Submit a maintenance service request to your installer.
201	Leakage current too high	Restart the inverter. If the error persists, contact Growatt.
202	DC input voltage exceeds maximum tolerable value	Disconnect the DC switch immediately. Use a multimeter to check the voltage of each PV string. If voltage is lower than 550V, contact Growatt.
203	Insulation problem	Check if the panel and inverter are grounded properly. Check for wet DC breakers. Ensure impedance between PV(+) and PV(-) to ground is within range. If the problem persists, contact Growatt.
300	Utility grid voltage out of permissible range	Switch off the DC switch. Check AC wiring, neutral, and ground connections. Verify grid voltage compliance. Restart the inverter. If the issue persists, contact Growatt.
302	No AC connection	Check AC wiring and the status of the AC breaker.
304	Utility grid frequency out of permissible range	Switch off the DC switch. Check AC wiring, neutral, and ground connections. Verify grid frequency compliance. Restart the inverter. If the issue persists, contact Growatt.
303	Voltage of Neutral and PE exceeds 30V	Check the voltage of Neutral and PE. Verify AC wiring. Restart the inverter. If the problem persists, contact the manufacturer.
407	Auto test failed	Restart the inverter. If the issue persists, contact Growatt.
203 Warning	PV circuit short	Check PV panel polarity and restart the inverter. If the problem persists, contact Growatt to replace the power board.
204 Warning	Dry connect function abnormal	Check dry connect wiring after shutting down. If the issue persists, contact the manufacturer.
205 Warning	PV boost circuit broken	Restart the inverter. If the problem persists, contact Growatt to replace the power board.
207 Warning	USB over-current	Unplug the USB or monitor. Reconnect after shutdown. If the error persists, contact the manufacturer.
401 Warning	Meter communication abnormal	Check if the meter is powered on. Verify connections between the inverter and the meter.
404 Warning	EEPROM abnormal	Restart the inverter. If the problem persists, contact Growatt to replace the M3 board.
405 Warning	Firmware version inconsistent	Update to the correct firmware version.
402 Error	Output High DCI	Restart the inverter. If the issue persists, contact Growatt.
404 Error	Bus sample fault	Restart the inverter. If the problem persists, contact Growatt.
405 Error	Relay fault	Restart the inverter. If the problem persists, contact Growatt.
408 Error	Over temperature	If the ambient temperature is below 60°C and the error persists after restarting, contact Growatt.
409 Error	Bus over-voltage	Restart the inverter. If the problem persists, contact Growatt.
411 Error	DSP-M3 communication fault	Restart the inverter. Update DSP and M3 firmware. If the problem persists, replace the DSP or M3 board and contact Growatt.
414 Error	EEPROM fault	Restart the inverter. If the problem persists, contact Growatt.
417 Error	Data mismatch between DSP and redundant M3	Restart the inverter. If the problem persists, contact Growatt.
420 Error	GFCI fault	Restart the inverter. If the problem persists, replace the power board or contact Growatt.

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