How to Troubleshoot a Dell Desktop Monitor

How to Troubleshoot a Dell Desktop Monitor



This article provides information on how to identify and resolve the various issues you can have with a Dell Desktop Monitor.


Table of Contents:

  1. Are you having issues with your Dell Desktop Monitor?
  2. Monitor Not Powering On
  3. Buttons on Monitor don't work
  4. The Monitor is overheating and shutting off
  5. The Monitor is making an Abnormal noise
  6. There is a Monitor Display Fault
  7. Is your Monitor covered under your Warranty?
  8. The Information you will need to log a service call

Are you having issues with your Dell Desktop Monitor?

If you are experiencing any of the issues listed below, please go to the appropriate guide in the sections below:


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Monitor Not Powering On

  1. Is there any damage to the Monitor? If so it will not be covered under warranty and you will need to purchase a replacement Monitor. If not please proceed.

  2. Is the Monitor Power LED (PLED) on? If so what colour is it?

    1. A Green PLED means the monitor is getting power and a signal from the computer. Please go to section 6 step 3.

    2. An Amber PLED mean the monitor is getting power but is not getting a signal from the computer. Please go to section 6 step 3.

    3. No PLED means the monitor is not getting power. Please proceed with the next step.

  3. Is the PLED on your computer on?

    1. If so swap the Power Cord on your monitor with the Cord plugged into your computer, does the monitor now give a PLED? If not we can rule out out everything external to your Monitor. You will need to contact your Technical support about a replacement if the Monitor is still under warranty.

    2. If not, check if you are getting power from other power sockets in the same location and if so move the devices to those sockets and test? You need to confirm the issue isn't a general power outage or an issue with the power sockets you have the Power Cords plugged to before you can take this further.


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Buttons on Monitor don't work

  1. Is there any damage to the Buttons? If so it will not be covered under warranty and you will need to purchase a replacement Monitor. If not please proceed.

  2. Are the buttons not working when pressed or are they physically stuck so that they can't be operated?

    1. If the buttons are not working when pressed, Please disconnect all cables other than the Power Cord and try the following:

      1. For monitors manufactured before 2009, press and hold the menu select button. If the menu comes up - reset the factory defaults and test if this resolves your problem? If not then you will want to contact your technical support to take this further.

      2. For monitors manufactured between 2009 and March 2016, press and hold buttons1 and 4 at the same time for two (2) seconds. If self diagnostics appear, run them and reset the monitor to defaults if the pass. If not then contact your technical support with the error and troubleshooting done.

      3. For monitors manufactured after March 2016, press and hold button1 for five (5) seconds. If self diagnostics appear, run them and reset the monitor to defaults if they pass. If not then contact your technical support with the error and troubleshooting done.

    2. If the buttons are stuck then you're going to need to contact your Technical Support about a replacement if the Monitor is still under warranty.


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The Monitor is overheating and shutting off

  1. Is the monitor shutting down in use?

    1. If it does, disconnect all cables other than the Power Cord and advise if issue continues when it isn't plugged to the PC? If it doesn't then replace the cables and test if issue returns. If it does then contact your Technical Support to see if you're covered for a replacement.

    2. If it doesn't, have you checked for any external environmental issue or if any power save modes have been configured? Is the Monitor powered off when not in use? Is there sufficient airflow around the Monitor when in use? Is the location having issues with heat that might affect the equipment used in that area? I would advise contacting your Technical Support to go over this with you.

  2. Is the screen warmer than an identical Monitor that has been on for the same amount of time? Is the monitor too hot to touch? If so please contact your Technical Support to confirm if your eligible for a replacement. If not, it would be considered to still be working ok.


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The Monitor is making an Abnormal noise

  1. Is there any damage to the Monitor? If so it will not be covered under warranty and you will need to purchase a replacement Monitor. If not please proceed.

  2. Isolate the Monitor from the computer by disconnecting all cables other than the Power cord and test does the noise continue?

    1. If it continues go to section 5 step 3.

    2. If it doesn't, troubleshoot the system instead and you can find a guide for that on the link below :

  3. Is the noise louder and different to the noise an identical Monitor makes?

    1. If it is then contact your Technical Support to check if your covered for a replacement.

    2. If it isn't then it would be considered to still be working ok.


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There is a Monitor Display Fault

  1. Is there any damage to the Monitor? If so it will not be covered under warranty and you will need to purchase a replacement Monitor. If not please proceed.

  2. Please disconnect all cables other than the Power Cord and try the following:

    1. For monitors manufactured before 2009, press and hold the menu select button. If the menu comes up - reset the factory defaults and test if this resolves your problem? If not then you will want to contact your technical support to take this further.

    2. For monitors manufactured between 2009 and March 2016, press and hold buttons1 and 4 at the same time for two (2) seconds. If self diagnostics appear, run them and reset the monitor to defaults if the pass. If not then contact your technical support with the error and troubleshooting done.

    3. For monitors manufactured after March 2016, press and hold button1 for five (5) seconds. If self diagnostics appear, run them and reset the monitor to defaults if they pass. If not then contact your technical support with the error and troubleshooting done.

    4. If the self test passes, swap out your Video cable and test if issue is resolved. If so contact your technical support for a replacement cable if your still in warranty. If it is still showing the same issue proceed with next step.

Display Faults are issues like Lines, Distortions, Occlusions and No Displays.

  1. Please plug your Monitor to another PC, one that is known to be working fine with it's own Monitor. Does your Monitor work ok when plugged to that PC?

    1. If so, then you will need to troubleshoot a No Post/No Video Issue with your PC. You can find a Guide on the link below. Your Monitor is fine.

    2. If not then you will need to contact your technical support to check if you are covered for a replacement Monitor.


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Is your Monitor covered under your Warranty?

Monitors are now sold with 3 years warranty as standard. If your Monitor is under 3 years old it will automatically be in warranty as that is now the shortest possible warranty period.

Monitors that are purchased in a bundle with a PC take on the warranty of that PC and can be covered for up to 5 years as long as the PC is.

Note: If your Monitor was purchased with a system, you will need to supply the service tag of the PC it was bought with or the order number it was bought under - before we can replace against the longer warranty.

You can tell how old your monitor is by looking at the manufacturing date on the back of the Monitor itself.

Note: All Dell's stock is rotated and kept to a minimum, so all Monitors should be aged within a couple of months at the most of their delivery date.


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The Information you will need to log a service call

The majority of Monitors do not have an individual Service Tag.

Monitors have a Serial number which will be in the format of 2 letters with a dash, then a mix of 6 letters and numbers, then a dash and 5 numbers, then 3 letters and numbers, another dash and then 4 letters and numbers followed by a dash with a revision number. You will need this number.

XX-XXXXXX-XXXXX-XXX-XXXX-A0X

(Fig.1 Serial Number Label)

You will need either the Order Number the monitor was purchased against or you will need the Service Tag of the PC is was bought with.

Note: It is up to you to have this information, we can not supply it for you.

You will need to be able to confirm the account details the Monitor is registered against.

i.e. Company/Organisation name, Shipping Address or any other information registered against the order.

Your will need to be able to go through the troubleshooting done and the results you got.

With this information a Technical Agent will be able to log a case for you and go through whether there any problems with the warranty or service call with you.


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If you require further assistance, please contact technical Support.
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Article ID: SLN155134

Last Date Modified: 10/19/2018 03:47 AM


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