Frequent "Utility Power Out" emails when there is no outage

[madasus]

Checklist

• I made sure that there are no existing issues or discussions - open issues,closed issues,open discussion, closed discussion - which may answer my question or that I could contribute my information to.
• I have read the Known Issues Wiki Page and my question / issue is not listed.
• I have provided the version of the software and the operating system in my post.
• If I have an issue with genmon not communicating with the controller, I have read and followed the serial troubleshooting guide.
• I have included the generator make and model in my submission.

Version

Genmon: V1.19.06
Generator: old Generac Nexus from around 2010

Have you submitted your log files from the About page? Note that outbound email must be working for logs to be submitted.

I have submitted logs

What is/are your question(s)?

I keep receiving email notices about Utility Power Out then 3-4 seconds later I get a Utility Power Restored. I was home during this time and there was no a noticeable outage in the power and none of my UPS devices in the house registered a power blip.

Is there a way to make this less sensitive? I don't want to disable the alerts completely as I want to know when there is a real outage

Additional information

Email 1

Time: 12:03:52 AM
Date: Mon 18-Aug-2025

Utility Power Out at 2025-08-18 00:03:48

Email 2

Time: 12:03:54 AM
Date: Mon 18-Aug-2025

Utility Power Restored at 2025-08-18 00:03:50. Duration of outage 0:00:02

[jgyates]

The false power outages are most likely caused by the communication errors. From the logs you submitted, here are you comm stats:

Comm Stats :
Packet Count : M: 4967157, S: 4967094
CRC Errors : 0
CRC Percent Errors : 0.00%
Timeout Errors : 62
Timeout Percent Errors : 0.00%
Modbus Exceptions : 0
Validation Errors : 26
Sync Errors : 26
Invalid Data : 3
Discarded Bytes : 0
Comm Restarts : 0
Packets Per Second : 22.09
Average Transaction Time : 0.0903 sec
Modbus Transport : TCP

The time out, validation errors and sync errors all inicate that the software is, at times, not getting the data it expects. The Known Issues wiki page has info on this as well as some things you can do to mitigate this issue:

https://github.com/jgyates/genmon/wiki/Appendix-D-Known-Issues#16-communication-errors

Not sure if you are using wifi somewhere between the system running gnemon and your generator, but if you are, improving the signal quality will help. Increasing the mobus timeout can help. You may have an issue with the serial to TCP converter you are using.

Let me know if you have any questions.

[madasus]

Thank you - let me try the additional modbus timeout. The WIFI signal looks to be strong and i've had a ping monitor running and see virtually no dropped packets.

The serial to TCP is the one from pintsize