Phone line & computer run through Ultra UPS. Due to lightning strike, we experienced power outage. Ultra UPS performed as expected and we turned off computer, printer & monitor. Once power returned we did not have DSL connection. Had to have phone company repairman come to house to check phone line. He discovered that phone line worked fine directly from wall to modem, but not through UPS unit. Suggested a 'fuse' had been blown? What now?

The power outage may have been accompanied with a power surge. That can happen with lightning strikes, or if a large inductor (electric motor or equivalent) happened to be on the same power line at the time of the outage. There's a good chance a surge took out the control panel.

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Hi this problem is more common than you think its caused by the power surge you get when the electric is turned back on you also get this problem due to lightning strike their is absolutely nothing you can do to repair the phone as their are no servicable parts and the chances of getting a new board for the base is going to be nigh on impossible

Your power outage may have been caused by a nearby lightning strike, or any number of
1000 different reasons that cause power surges, brown-outs, voltage spikes, inductive loading,
and/or utility pole breaker trips and resets (this accounts for your power loss (a pole breaker trip),
followed by restoration of power (the pole breaker automatically reset) - even plain old high electrical demand causing an overload due to air conditioning demands caused by hot weather.
When the pole breaker reset, your TV caught a power surge.
Whenever a power outage occurs, quickly power off (or better, unplug) any/all computers, TVs,
etc. that are not protected by surge-protection.
As an electrician, when someone loses an item of electronics concommitant to an electrical
anomaly, its almost
always traceable to a nearby lightning strike (or the power company provided equivalent), accompanied by inadequate surge protection for
the VCR/TV/Computer/Stereo/uninsured valuable electronic item/XBOX 360/Nintendo Wii.
Surge protection can
be provided by the consumer at the power strip (a good one with builtin MOV protection and a
warranty costs $20, whereas a zero-protection 4-outlet or 6-outlet power strip will cost $4-$5).
Your electrician can provide whole-house surge protection where a whole-house MOV-based (metal oxide varistor) surge protector, or per-circuit protection can be installed with
a GFCI breaker (or better, an AFCI breaker) can be installed.
GFCI = ground fault circuit interruptor
AFCI = Arc fault circuit interruptor
Lightning protection is especially important in Florida, which is the "lightning capital of the world."
I've never found a good solution to lightning-fried electronics (random power supply components are destroyed and/or fuse blown), other than renters insurance or homeowners insurance.

Your only real hope for an economical fix is to look for a blown fuse, and replace it.

If desperate to attempt a fix on your own, you could try replacing the entire TV power supply as a module, but even this provides
no guarantee of a fix - lightning damage can extend beyond the power supply.
When traveling, I will always unplug everything before I leave (except the security system),
and also turn off the breakers to unneeded house circuits (which kills the wall switches that
control interior lighting - forcing a burglar to use their flashlight instead of interior lighting)
which is the least convenient lightning protection, but highly effective, and cheap (free).

Your question is slightly confusing. Do you mean that the computer is not powered by a UPS? If the computer is not connected to the UPS, then why have a UPS? If the computer is not connected to the UPS and restarts when you turn the UPS On, your circuit feeding the UPS is overloaded and the voltage dips. If the computer is connected to the UPS, and restarts when there is a power outage, the fault may lie in the reaction of the HP 800. This unit looks to be a line interactive unit and it is not a true on-line UPS. The line interactive and battery backup (no voltage regulation) units both should have a switch to battery power time of 4 msecs, or less. If this unit is faulty and the switchover time is longer, it will not continue to hold up the computer internal power supply. If you are trying to run a laser printer on the HP unit, it won't have enough output capacity.

A UPS is generally not designed or manufactured to protect against lightning strikes and / or power surges. Its purpose is ensure that whatever it is supplying power to does not turn off in the event of a power outage. You would be better served by getting a lightening protection strip from a hardware store that comes with insurance against damge from lightening and power surges. Alternately at substantially more cost, you can have an electrician or lightening protection contractor install whole-house lightening protection. Lightening protection strips with insurance included are relatively inexpensive.

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Yes, it can. I have replaced more than a couple of poorly made Chinese gel-cells after fairly brief service.
Also, you can extend your UPS's service time before the battery is depleted by turning off the monitor and settings the Power Management settings to power-down hard drives after 10-20 minutes.
In my experience, the ratings on UPS systems is wildly optimistic regarding their backup capabilities.
Also; the protection against lines surges caused by even distant lightning strikes is fairly minimal.
If this is in your home, you might consider installing a 'whole house' surge arrester. Depending on the maker, they offer up to $10,000 in damage insurance to cover any losses not prevented by their devices.
The plug-in strips with 'surge protection' have a 50 cent component in them to clamp spikes to ~200VAC and these even get tired with repeated surges and eventually become totally ineffective.
If the battery checks out OK, the circuitry responsible for switching from AC line to backup mode may have already been damaged during the storm.
Switching to the 'surge protector' mode really only provides mildly conditioned AC line and involves no active electronics.

No reset for that processsor.. ALL Surge protectors are not guaranted for lightning strikes. Does she know if lightning hit the line that services her home?

Your printer may have experienced damage to electronic components with the outage, especially if due to a lightning strike causing the outage. You should have a shop troubleshoot and decide if it will need a new board, such as a formatter/logic board.

Unplug it and then blow a hairdryer at the power supply for 3 minutes. Leave the lid on, just blow the hairdryer at it from the outside. Craziest trick I ever saw.

After that, turn off hibernation. And eventually, replace your power supply.

What is happening here is you are transferring load to battery during a power outage but on return of Line Power the UPS is not smoothly transferring back to Normal mode. As a result you are basically turning off your computer. Two options... shut down your computer orderly during an outage or buy a new UPS.

DD
Dynamic Power Solutions LLC