My 6LPM Pump Is ON, But I'm Not Hearing Any Noise

Created by Smarttek Support, Modified on Wed, 14 Dec 2022 at 12:03 PM by Smarttek Support

My 6LPM is on but there is no noise?


Not to worry, you can test this very quickly and easily. 

  • First check the wire harness switch is in the ON position.
    Try switching it on and off a few times to determine if that is causing the issue.
  • Confirm all alligator clips are creating a secure connection to your 12V battery
  • If the above has not fixed the pump lets try testing the pressure switch by bypassing it.


Pressure Switch Bypass Test


1. Locate the cables -
At the head of the pump you will see two black cables, unplug these.


2. Process -
Join the two cables together by sliding them into each other and test to see if pump turns on.


If NO, The pump is possibly damaged.

If YES, You have a faulty Pressure Switch.
You can tape up the cables and use it this way in the interim and you will need a New Pressure Switch.



Note: The Pump will continue to work with a faulty pressure switch although you will need to turn the Pump ON and OFF by using the power cable.







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