How To Lock/Unlock Buttons; Error Codes Indication - Mitsubishi Electric Ecodan PUHZ-W50VHA-BS Homeowner's Manual

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How to lock the Buttons
While holding down the button A, press and hold down the button I for 2 sec-
onds. The "Locked" indication appears on the screen (display 8), indicating that
the lock is now engaged.
* If locking has been disabled in Function Selection of remote controller, the
screen will display the "Not Available" message when you press the buttons as
described above.
If you press a locked button, the "Locked" indication (display 8) will blink on the
display
How to Unlock the Buttons
1. While holding down the button A press and hold down the button I for 2 sec-
onds—so that the "Locked" indication disappears from the screen (display 8)

Error Codes Indication

If the ON lamp and display 10 are
both blinking: This means that the
Ecodan® ASHP is out of order and
operation has been stopped (and
cannot resume). Take note of the
indicated unit number and error
code, then switch off the power to
the Ecodan® ASHP and call your
installer.
If only the display 10 is blinking (while the ON lamp remains lit): Operation is
continuing, but there may be a problem with the system. In this case, you should
note down the error code and then call your installer for advice.
If you have entered contact number to be called in the event of a problem, push
the button J to display it on the screen.
If you have entered contact
number to be called in the event of
a problem, the screen displays this
number.
(You can set this up under
Function Selection of remote
controller. For information, refer
to table below).
Alternating Display
When the Check Button is pressed:
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