This article helps resolve AC Adapter and Battery Issues. Video - Portable Battery Not Charging to help resolve charging issues (English Only) - (1:46). When there is no light: Verify the AC power cord is correctly installed. Confirm the power outlet is functional. If found defective, try another outlet. Unplug the adapter AC power cord from the wall outlet. Remove the AC power cord from the adapter brick. Use two hands for attaching the power cord to the AC adapter brick. Hold the adapter in one hand, and place the power cord in position over the two or three prong connector on the adapter brick itself (Figure 1). Using the palm of the hand, push the power cord in fully, until it clicks (Figure 2). Figure 1: Align the power cord. Figure 2: Press the power cord firmly until it clicks into place. If power LED on the system is still not on, remove all media communication devices (external monitor, printer, webcam etc). Reconnect one at a time to isolate the defective device, if any.

Note: When the light still does not come on the original AC adapter, and another AC adapter of the same type works (if one was available), contact Technical Support when your system is in warranty. To check if your warranty is active, refer to Dell Knowledge base article How to Check When Your Warranty Expires. If your warranty has expired, a new AC adapter can be purchased at the Dell Batteries and Adapters web site. When the light is flickering:Plug the power cord into the adapter brick by using the following steps.Hold the adapter in one hand, and place the power cord in position over the two or three prong connector on the adapter brick itself (Figure 3). Using the palm of the hand, push the power cord in fully, until it clicks (Figure 4). Figure 3: Align the power cord. Figure 4: Press the power cord firmly until it clicks into place. Try the AC adapter on a working AC outlet, when the light still flickers, try another AC adapter of the same type if available.

Note: When the light still does not come on the original AC adapter, and another AC adapter of the same type works (if one was available), contact Technical Support when your system is in warranty. To check if your warranty is active, refer to Dell Knowledge base article How to Check When Your Warranty Expires. If there is a error concerning the AC adapter refer to Dell Knowledge base article. Our support site provides multiple diagnostic tests that can be run on your system and output results or error codes that can be then used to identify failures or provide to technical support if warranty service is required. These tests can fulfil a support request online and , or direct you to additional resources to replace your battery. From our main support site navigate to the diagnostic section or click the link below. When the battery diagnostics fail, you can log a in warranty service call using the following link - Enhanced Preboot System Assessment. You will need to enter the Error and Validation code as seen on the screen, you will also need to enter the Service tag of the faulty computer, just follow the prompts to complete the process.

If your battery warranty has expired and the battery diagnostics fail, a new battery can be purchased at the Dell Batteries and Adapters website. Only Dell batteries should be used in Dell notebooks, and Dell batteries can only be purchased from Dell. A normal characteristic of a rechargeable battery is that its operating duration decreases over time. The battery may eventually need to be replaced. Based on this characteristic, consumed batteries may not be covered under warranty.my ac unit outside will not turn SupportAssist, previously called My Dell, detects issues and sends you alerts based on your device, This application gives you access to everything you need to take the guesswork out of maintaining PCs and tablets. best home ac units 2012For more information on how to obtain and install SupportAssist, browse to the SupportAssist for PCs and tablets page.air conditioner for one room

Contact Dell Technical Support for additional assistance and recommendations.Ampere is a free app built for Android devices running Android 4.0.3 and up. WonderHowTo first brought the app to my attention last month, but I've just now been able to test it. The goal is to help you troubleshoot suspect wall-warts and USB cables.After installing the free app, launch it and wait until you get a reading containing the milliamps your device is using. Keep this number handy, as you'll need it in a minute. Next, plug your phone or tablet in to charge. Wait until you have a new reading, and write down the number. Now, look on the AC adapter itself for its output reading.Each AC adapter has a set output. For example the unit I tested will push out 500 milliamps. I know his because it's listed in fine print on the AC adapter itself.When I connect my Nexus 6 to it, I get a reading of between 200 and 240mA. When I take that number and combine it with the average amount of milliamps being used when the device is unplugged (around 300mA) I can surmise the charger is working properly.

Should the number not match up, either the USB cable or the AC adapter is likely faulty. I could swap out either part of the equation, and measure again until I've figured out where the issue lies. The Play Store listing includes devices the app isn't compatible with, as well as general guidance of the app not being capable of providing precision accuracy. In other words, don't throw away your multimeter. The purpose of this procedure is to verify that residential split system air conditioners and heat pumps have the required refrigerant charge and that the metering device is working as designed. apply to ducted split system central air-cooled air conditioners and ducted split system central air-source heat pumps for which the system manufacturer has specified that this procedure may be used to verify refrigerant charge. The Standard Charge Verification Procedure (Section RA3.2.2 of the Reference Residential Appendices) calls for the outdoor temperature to be within the

When outdoor temperatures are below 70°F, the setup for the Standard Charge Verification Procedure must be modified in order to achieve the proper system pressure differential needed for theThe Winter Setup for the Standard Charge Verification Procedure (Winter Charge Setup) allows both installers and HERS Raters to utilize the Standard Charge Verification Procedure of RA3.2.2 in the winter.  Weigh-in Charging Procedure specified in Section RA3.2.3 may also be used only by the installer. The Winter Charge Setup creates the right conditions at the unit being tested for outdoor temperatures above 37°F and below 71°F that allow the system to operate in the same range of pressure differences between the low side pressure and the high side pressure as occurs during warm outdoor The Winter Charge Setup is used only for units equipped with variable metering devices, which include Thermostatic Expansion Valves (TXV) and Electronic Expansion Valves (EXV) for which the manufacturer specifies

subcooling as the means for determining the proper charge for the unit, including units equipped with micro-channel heat exchangers. Setup achieves an appropriate high side - low side pressure differential to conduct the Standard Charge Verification Procedure, by restricting the airflow at the condenser fan outlet through the use of a Condenser Outlet AirOnce this pressure differential is achieved, the Variable Metering Device Calculations are conducted in the same way as the variable metering device procedures described in Reference Residential Appendix RA 3.2.2.6.2.  All other applicable requirements of Section RA3.2.2 remain the same and must also be completed when using the Definition - Condenser Outlet Air Restrictor: A device which restricts the free area of the outlet from the condenser fan to reduce the air flow, but does not interfere with air entering the condenser coil. restriction shall be adjustable to allow the operator to vary the airflow to

achieve the target refrigerant pressure difference. (a) Install the condenser outlet air restrictor on the outlet from the condenser fan: Position the restrictor so it does not interfere with the inlet airflow to the condenser. Start the air conditioner or heat pump in the cooling mode and restrict the outlet until the difference between the high side pressure and the low side pressure is between 160 psi and 220 psi for R-410A refrigerant and 100 to 145 psi for R-22 refrigerant. 160 psi ≤ (Phigh,  – Plow ) ≤ 220 psi for R-410A 100 psi ≤ (Phigh,  – Plow ) ≤ 145 psi for R-22 Allow the unit to stabilize for 15 minutes, watching the pressures to make sure the differential achieves and remains within 160 psi ≤ (Phigh,  – Plow ) ≤ 220 psi for R-410A refrigerant 100 psi ≤ (Phigh,  – Plow ) ≤ 145 psi for R-22 refrigerant the test procedures specified in the Reference Residential Appendix, Section RA3.2.2.6.2 to determine compliance.

The Winter Charge Setup may only be used for equipment for which the air conditioning manufacturer approves the use of the Winter ChargeRefer to the Energy Commissions website for the list of split system air conditioner units approved by the manufacturers to use the Winter Charge'In 'addition to the requirements of Section RA1.2, manufacturers may issue additional instructions/clarification for the equipment and procedures required to be used to conduct the Winter Charge Setup. These additional instruction/clarifications shall also be available on the Energy Winter Charge Setup may be used for systems that use a target subcooling for refrigerant charge verification, including units equipped with micro-channel heat exchangers where the manufacturer specifies subcooling for measuring refrigerant charge. Similar to the Standard Charge Verification Procedure for warm weather, the Winter Charge Setup may be used by the Installer and/or the HERS Rater.