2026.10.3
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Reset meters on a node

Use this action to reset the meters on a Z-Wave device that supports the Meter Command Class, for example to start a fresh energy measurement on a smart plug or energy monitor.

You can target the action at one or more entities, devices, or areas.

Using this action from the user interface

If you prefer building automations and scripts visually, Home Assistant walks you through this action step by step. You pick what to target, tweak a few options, and save. No YAML knowledge required.

To reset meters from an automation or a script:

  1. Go to Settings > Automations & scenes.
  2. Open an existing automation or script, or select Create automation > Create new automation.
  3. If you’re setting up a new automation, add a trigger in the When section. Scripts don’t need a trigger. They run when something else calls them.
  4. In the Then do section, select Add action.
  5. From the list of actions, search for and select Z-Wave: Reset meters on a node.
  6. Select the Z-Wave entities, devices, or areas to target.
  7. Select Save.

Options in the UI

Area ID(s) (Optional)

The area, or areas, to target. All Z-Wave meter entities in the area are targeted.
Device ID(s) (Optional)

The device, or devices, to target.
Entity ID(s) (Optional)

The entity, or entities, to target.
Meter type (Optional)

The type of meter to reset. Not all devices let you pick a meter type.
Target value (Optional)

The value to reset the meter to. Not all devices support resetting to a specific value.

Using this action in YAML

If you work directly in YAML, or you want to know exactly what Home Assistant does under the hood, this section has the technical reference. It lists the field names you use in YAML, their types, and which ones are required. For how an automation or a script is built in YAML, refer to Automations in YAML and Scripts.

In YAML, refer to this action as zwave_js.reset_meter. A basic example looks like this:

ActionAn action makes Home Assistant do something, for example, turn on a light, send a notification, or activate a scene. Automations and scripts run a list of actions. [Learn more] 
action: zwave_js.reset_meter
target:
  entity_id: sensor.washing_machine_power

Options in YAML

area_id string | list (Optional)

The area ID, or list of area IDs, to target. All Z-Wave meter entities in the area are targeted.

device_id string | list (Optional)

The device ID, or list of device IDs, to target.

entity_id string | list (Optional)

The entity ID, or list of entity IDs, to target.

meter_type integer (Optional)

The type of meter to reset. Not all devices let you pick a meter type.

value integer (Optional)

The value to reset the meter to. Not all devices support resetting to a specific value.

Good to know

  • The device must support the Meter Command Class.
  • Some meters only support a full reset and ignore the meter type or target value.

Still stuck?

To test the action on its own, run it in the automation editor with Run action, and check the message that it shows. To see what the action did when the automation ran, open the trace of that run. For details, refer to Testing automations. For common problems and their solutions, refer to Troubleshooting automations.

If that doesn’t help, the Home Assistant community is quick to help: join Discord for real-time chat, post on the community forum with the action you’re calling and what you expected to happen, or share on our subreddit /r/homeassistant.

Tip

AI assistants like ChatGPT or Claude can also explain actions or suggest the right one when you describe what you want in plain language.