APC Smart UPS SMT750

[NyteFire]

Bought this unit to act as back up power for a laptop and some testing equipment.
http://www.amazon.com/APC-Smart-UPS-SMT750-750VA-System/dp/B002MZW5KE/ref=cm_cr_pr_product_top

Within 24 hours of use the UPS went offline and threw an AVR Weld Relay fault. Talked to a tech and changed some settings. Few days later UPS was off line again. Rebooted and it was running for 6 days until it went offline again. This time with another AVR Weld Relay fault code. I also looked into the data logging and it was showing that the input power, the power coming from the line into the UPS, was sporadically low, coming in at around 74v.

Restarted the device and it was saying line in power 74v. I unplugged it from the wall and tested with a multimeter and the line voltage was 120v.

Anyone else have issues with this type of UPS or did I just get a defunct unit off the shelf?

Any other suggestions for back up systems? Preferably one that can send out an email notification when power is lost.

 

[popatim]

APC uses some rather subpar relays in many models of these higher end UPS's. You can either take it back or replace the relays.

 

[NyteFire]

APC uses some rather subpar relays in many models of these higher end UPS's. You can either take it back or replace the relays.

They're already sending me a replacement unit but I wanted to know if this was a common issue or if there are batter alternatives

 

[popatim]

IMO there are better alternatives but whats bought already is what you have to work with. Hopefully they've re-sourced those relays.
Good luck.