HELP - issue with hass saying does not exist

I have 4 Identical servers run HA each are running
Home Assistant 2023.1.6
Supervisor 2023.01.1
Operating System 9.5
Frontend 20230110.0 - latest

1 server and only 1 server keeps giving me this error (it moves from 1 automation to the next after clearing, i have like 75 using the same service on each server)

Valve OFF - Unit 2402 uses an unknown service

The automation “Valve OFF - Unit 2402” (automation.valve_off_2402) has an action that calls an unknown service:

This error prevents the automation from running correctly. Maybe this service is no longer available, or perhaps a typo caused it.

To fix this error, edit the automation and remove the action that calls this service.

Click on SUBMIT below to confirm you have fixed this automation.

Do you have the service configured on that system? Check your services for it. If you don’t have it or it’s named something else, make a notification group and set that name.

1 Like

Yes and the config is identical in all four servers and has been working for a year or so until jan patch

Only 1 server is doing this


  • name: notify-events
    platform: notify_events
  • name: email
    platform: smtp
    port: 587
    timeout: 15
    encryption: starttls
    username: .com
    password: !secret smtppswd
    sender: .com
    sender_name: HA.N.02
    recipient: .com

well, its most likely going to be network related. Check your logs on HA during startup

All 4 boxes on same physical net, 2 on each vlan, looking at logs just see some normal timeouts etc, but I am going to do a reboot and see.

Hello, my Email notification works fine most of the time.
But once and a while I get an error message: unknown service:
However, nothing has changed!
After a restart of HA it works fine again.

Anyone experience the same?