We have purchased 8 of these units, and have installed 4 of them so far. After a few days, the first unit installed began to fail. Within the last week we have had the 2nd and 3rd units fail. The batteries test fine and appear to be fully charged, however the control unit begins to flash a red indicator and then turns off. We have swapped 2nd and 3rd units with the remaining systems and I received a note on Friday that one of those has begun to trip out and turn off.
I'll get to take a closer look at these units tomorrow, but anyone else having these problems with these units.
It's not looking good for this model from our perspective.
Well it could be the driver of the relay havin the problem or the mosfet is faulty.. that will be the hardware problem hmmm i askin hav you install any software or smnp card?? and how high is your input current?? and how much load you connected to ups.. i suspect the UPS u purchase it frm the USA and the current that opperated is 208ac it could be also the problem if the ups havin setup to 240ac..
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Continuous Beeping (theamber On Battery LED will be illuminated) This alarm indicates that the UPS has reached aLow Battery condition and will soon shutdown. The UPS can only operate onbattery for a limited amount of time. In order to protect the unit's batteriesfrom discharging too much, the UPS will shutdown and turn off its output. Towarn you that the unit will soon shutdown, the UPS will sound this alarm 2minutes before actual shutdown. With optional Powerchute Plus software, 2minutes can be changed to 5, 7, or 10 minutes to give you more of a warning ofimpending shutdown. If you hear this tone, you should immediately gracefullyshutdown your operating system to prevent data loss or corruption. Note:This graceful shutdown will occur automatically if Powerchute PLUS software isbeing used.
Constant, Solid Tone (the red Overload LEDwill be illuminated) This alarm indicates that the UPS has detectedan Overload condition. If this alarm is sounded, try removing non-essentialequipment. The alarm will remain until the load is reduced. To determine ifyour UPS is capable of handling the equipment you want to protect, visit APC'sSizing Guide at www.apcc.com/sizing.
Continuous Beeps for One Minute; RepeatedEvery 5 Hours (Replace Battery LED will be illuminated) This alarm indicates that the UPS has failed itsSelf-Test of the battery. The unit will continue to sound this alarm until theunit passes the test. Try to let the unit charge for a few hours and thenperform another Self-Test (Press and hold the on/off button until the second'chirp', then release). If it fails and the unit is still in-warranty (twoyears from date of purchase), then contact APC. If the unit fails and its outof warranty, then order a replacement battey cartridge through your reseller,distributor, or from APC's web site.
There is a battery in the unit, which most likely needs to be replaced. You can find replacement batteries at a variety of retailers. To get an idea of price, search here. For documentation on your product, you can consult the guides listed here.
Ok, 3-4 years is a much as you can expect from an ups battery so replacement is indicated. The beeps are letting you know the battery is not able to keep up with demand. So either you have recently added to the system or the battery/s failing.
It sounds like you may need a new battery. The batteries are continuously tested by the UPS and it could be that the voltage is passing one test, and failing the next which is resulting in the light flashing. You can test the battery with a voltmeter. It should read over 11.5 volts, if not you need a new battery set. You can get batteries from http://www.batteryinternational.com/ups-batteries-apc-batteries.html
I bet your unit is about 4 years old... I have installed 4 of these systems 4 years ago and each is failing at about the 4 year mark (3 so far).
The flashing volume lights are a communication error, meaning the keypads are not communicating with the controller. If all of the keypads are doing the same thing and your have checked your cables then the problem is with the controller. I would unplug the unit for a few days and see if that helps.
It appears the units work consistently and reliably for about 4 years however in my case 75% have failed at the 4 year mark.
Fortunately I have a meter and oscilloscope and determined why they are failing. The main power supply unit that feed power to the 5VDC regulator is failing.
It is not clear whether M&S replacement units have addressed this problem or not. Therefore, to fix the problem for my customers, I added and additional small power supply (fits inside the case) and injected the signal on the input side of the 5VDC regulator. My solution hopefully will not expire after 4 years.
It appears to me from my small sample size that M&S may have a flaw in their original engineering and replacing it with the same will guarantee future failure.