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Both the cold and volume icon lights on my Sterra 7 Tankless Water Purifier are blinkingUpdated 20 days ago


If your machine is showing this error, it usually means there may be a loose internal connection inside the unit. This can affect the normal operation of the machine.

Please follow the steps below.


Step 1: When was your unit installed?

Was your water dispenser installed within the last 15 days?

If yes, please let us know when contacting support.


Step 2: When did the issue start?

Did this issue start recently?

If yes, please try a simple restart:

  1. Switch off the machine at the main power source.

  2. Unplug it.

  3. Wait for 5 to 10 minutes.

  4. Plug it back in and switch it on.

Monitor the unit and check if the error appears again.


Step 3: Wait for auto flushing

After restarting, the machine will begin auto flushing.

You will see a breathing light on the dispense button.

• Wait about 15 minutes.
• All lights will turn off once flushing is completed.

This is normal.


Step 4: Check for recent power trips

Did your house experience any recent power trip?

If yes, the restart above may help stabilise the machine.


Step 5: Check for water leakage

Please check the bottom of the machine.

Do you see any water leaking?

• If yes, stop using the machine and contact us immediately.
• If no, continue to monitor the unit after the restart.


If the issue continues

If the error remains after trying the steps above, please email us at [email protected] with:

• Your order number
• A short video of the error on the display

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