ac unit not taking a charge

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.
ac unit working but not coldA normal characteristic of a rechargeable battery is that its operating duration decreases over time.
water running from ac unit The battery may eventually need to be replaced.
how much to replace my central ac unitBased on this characteristic, consumed batteries may not be covered under warranty. 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.

For more information on how to obtain and install SupportAssist, browse to the SupportAssist for PCs and tablets page. Contact Dell Technical Support for additional assistance and recommendations., you must first log in to your Tripp Lite account. If you are not a registered user, please register now. Top 5 UPS Support Issues 1. When all of the equipment is connected, the UPS system just shuts down. Exceeding the UPS load capacity. The power rating of the equipment that is plugged into the battery-supported outlets must not exceed the UPS capacity. To make sure it doesn't, add together the power rating for each piece of equipment and compare the total requirements to the capacity of the unit, which is listed a) on the bottom of the UPS, or b) on the Specification tab on Tripp Lite's product page. If the total power draw of the connected equipment exceeds the capacity of the UPS, the load MUST be reduced for the UPS to perform properly. Figure Out How Much Capacity You Need with Tripp Lite's UPS System Load Calculator.

2. The UPS system wasn't in use for a period of time and now the batteries do not charge. Improper storage of the UPS unit when not in use It's recommended that when a UPS system is stored for an extended period of time, the batteries should be fully recharged every three months by plugging the UPS into a live AC outlet and letting the UPS system charge for 4 to 6 hours. If the UPS batteries are left discharged for an extended period of time, they will suffer a permanent loss of capacity and can result in the failure of the UPS system. Fully charge the battery every three months. Find a replacement UPS System battery using Tripp Lite's Battery Finder. 3. When the UPS System is in battery mode, equipment shuts down immediately. Battery health not monitored There are a variety of reasons why the UPS didn't provide battery power to equipment. Conduct a self test and verify that the attached load doesn't exceed the maximum capacity of the UPS system and connected equipment is attached to the battery-supported outlets, NOT the surge-only outlets (See question 4 for more information).

If the UPS and battery are more than two years old, and depending upon usage, it's possible the battery performance and capacity have deteriorated over time and a replacement is needed. A voltage reading of the batteries can determine if they are within the recommended capacity range. Check the load does not exceed the UPS System's capacity. 4. When switching to battery mode, essential equipment turns off and non-essential equipment stays on. Most UPS systems have 2 sets of outlets: battery- and surge-protected outlets that DO provide battery backup power, and surge-only outlets that DO NOT provide battery backup power. Reconnecting the equipment that requires battery backup power and that is within the output capacity of the UPS directly into the battery-supported outlets is recommended. Equipment that does not require battery protection or that exceeds the capacity of the UPS can be plugged into the surge-only outlets. When the UPS system operates in battery mode, power is not available from the surge-only outlets.

Check that essential equipment is plugged into battery-supported outlets. Find a UPS System with all battery-supported outlets using Tripp Lite's UPS Finder. 5. UPS system will not turn on. The power button does nothing. Insufficient charge or tripped circuit breaker A UPS System should be allowed to charge its battery for 4-6 hours before use. Alternately, a circuit breaker might have been tripped. Tripp Lite UPS systems have either a "BUTTON" OR "PLUNGER" type circuit breaker. The type can be determined by examining the outside of the UPS system. If there is no circuit breaker, continue to the next step. If there is a circuit breaker, press the button inward. If there is no resistance and the button stays recessed, then the circuit breaker is already reset. Confirm that the AC outlet has power by connecting a lamp or other non-battery-operated device to the outlet. Turn on the unit by pressing the power button until there is a beep and then release it.