145
SolarEdge Solar Inverter
Severity: ModerateWhat Does This Error Mean?
Error 145 on a SolarEdge inverter means the internal temperature has exceeded the safe operating limit and the inverter has reduced output or shut down to protect itself. This is most often caused by inadequate ventilation around the inverter, high ambient temperature, or a blocked heat sink. The inverter will usually recover automatically once it cools down.
Affected Models
- SolarEdge SE2200H
- SolarEdge SE3000H
- SolarEdge SE3500H
- SolarEdge SE4000H
- SolarEdge SE5000H
- SolarEdge SE6000H
- SolarEdge SE7000H
- SolarEdge SE10000H
- SolarEdge StorEdge (all models)
Common Causes
- Inverter installed in direct sunlight without shade — internal temperature climbs rapidly
- Ventilation clearances not maintained — objects placed too close to the inverter
- Heat sink fins on the inverter rear blocked with dust, dirt, or spider webs
- Ambient temperature combined with solar generation on a very hot day pushing temperatures above the design limit
- Inverter installed in an enclosed box or cupboard without adequate airflow
How to Fix It
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Check whether the inverter is in direct sunlight.
SolarEdge recommends installing inverters in a shaded location or indoors. An inverter mounted on a south-facing (or north-facing in the southern hemisphere) wall in full afternoon sun can overheat on hot summer days. Fitting a shade canopy over the inverter is a simple and effective fix.
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Check the clearances around the inverter.
SolarEdge requires specific minimum clearances — typically 25 cm above and below the inverter for airflow. Check that nothing has been stored, stacked, or hung near the inverter since installation.
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Clean the inverter heat sink.
The fins on the back or side of the SolarEdge inverter (the ridged metal area) act as a radiator. Use a soft brush or compressed air to clear dust, cobwebs, and debris from the fins. Do not use water.
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Wait for the inverter to cool and observe whether it resumes normal operation.
After clearing ventilation issues, the inverter should restart automatically once it cools below the threshold. On the mySolarEdge app or monitoring portal, Error 145 should clear and production should resume.
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If Error 145 persists even in cool conditions or after clearing the heat sink, call your solar installer.
A persistent temperature fault when the ambient temperature is normal may indicate an internal cooling component fault.
Frequently Asked Questions
Will SolarEdge Error 145 restart automatically?
Yes — when the inverter cools below the threshold temperature, it will automatically restart and resume solar production. You do not need to manually reset it. However, if the underlying ventilation issue is not fixed, Error 145 will return every hot afternoon.
How much solar production do I lose during an Error 145 shutdown?
Typically 1–3 hours of production on a hot afternoon — the peak generation period. This can be significant in summer. Fitting shade over the inverter can prevent this loss every year for the life of the system.