Lock (also called: prohibition)

Locks the controls to prevent unwanted modification of the settings by another user.

When locked, pressing buttons on the remote controller will not change the settings.

- Complete lock (or ‘child lock’): all the buttons and controls are frozen and cannot be modified
- Partial lock: only selected controls are locked - (for example: operation mode lock means it won't be possible to change the operation mode, but any users can keep modifying the temperature, fan speed… etc)

Locking/unlocking the controls usually requires pressing 2 specific buttons on the remote controller at the same time*. In cases where a central controller is connected to the air conditioning system, some central controllers offer the option to set the locks on the individual zone controllers.

* The majority of Hitachi controllers (hand-held, wired and apps) offer locking feature. Locking method (complete or partial) varies per controller model. It is recommended to read the controller operation manual.

You may also like


Powerful mode

Voltage surge protection

Auto-restart in AC

Energy Cost Estimator

Silent mode

Find a dealer

Request a free Home Assessment - Browse our Australia-wide network of Hitachi Authorised dealers & installers.