Error E. OH (overheat power module) on a KEB F5 Inverter indicates that the power module is overheating. This can be caused by a variety of factors, including a malfunctioning cooling system, a faulty power module, or a problem with the wiring or connections.
To troubleshoot the issue, you can try the following steps:
If these steps do not resolve the issue, it's best to contact a professional repair service or the manufacturer for further assistance. They will be able to diagnose the problem and recommend the appropriate repairs. It's also a good idea to stop using the F5 Inverter until the issue has been resolved, as continuing to use it may cause further damage.
- Check the cooling system for any visible signs of damage or malfunction, such as a clogged air filter or damaged fan.
- Check the power module for any visible signs of damage or malfunction, such as burnt or damaged components.
- Check the wiring and connections to ensure that they are secure and properly connected.
- Check the F5 Inverter's fuse and circuit breaker to ensure that they are functioning properly.