Pulsar ex 1500 rt

Sounds like main board fault. These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electronicshelponline.blogspot.com/
http://electro-medical.blogspot.com/
Blinking codes details of many popular brand TVs are given. Surf the site with patience.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

apc offer schematics or BOM's
there secret service manuals covers card (PCB) changes and jack names .



if not too old their official service centers can fix it;.
even out of warranty if it has recalls as many do. (smoker it.)

why be here at all and not talking to APC.com DIRECT? WHY be here.
it is their design and they made it in a factory and they do support it why not call them.? first for even ideas...
step 1 is remove batteries and test them on a bench, google how to load test UPS batteries,
I can .

now what they say on their real forum APC.com

"first off they do NOT want you inside (aside from safe battery swaps)
that is simple dead owners never buy new UPS or upgrade ever,"
case in point.
240vac is really 340volts peak and is fully lethal to humans, not Doctor Teflon man (lol)
step one is read your error logs files, using powerchute app free from them.
top fail are batteries bar none we bench test them load tested ask or google it.
step2 is log files to read. never skip this step.

yours is the older 5kw model
a tower?
and newer ones are better.
I guess you are not in the USA, (suffix "I" code )
we have EPA/DOE banning most 10 year old model here, so that is huge problem state side.
230vac line in?

https://www.apc.com/shop/my/en/products/APC-Easy-UPS-On-Line-SRV-6000VA-230V-/P-SRV6KI

1. OK,GMC/GM are wired as such. White/Black wire, front left -[neg] White, front left +[pos]. Grey/Black wire, front rt -[neg], Grey wire, front rt +[pos]....Green/Black wire, left rear [neg], Green, left rear [pos]....Violet/,Black , Rt rear [neg],...Violet, Rt.rear [pos]........You will also have a Blue/Red wire that goes to antenna. ..A Blue wire for Power Remote....Red goes to IGNITION.....Yellow goes to Battery[for clock].....And finally a Black goes to Ground.......I hope that you have good luck and everything works out for you. `

You need to replace the turn signal flasher with a heavy duty one.

Cyrus, Eaton will never be the same again. The fault led suggests a permanent disconnect with the articulation franchise of the ovulation event monitor. Reset will not help.

My mge 1500 ups is indicating fault behind with an Problem with the MGE UPS Pulsar Evolution 1500 UPS System my mge 1500 ups is indicating fault behind with an led flashing red and there is no output from the ups with or without ac input

The Site Wiring Fault LED will indicate three status:
• Led On: The site wiring fault function is enabled and a site wiring fault is present.
• Led Off: The site wiring fault function is disabled.
• Led Flash: The Site wiring fault function is enabled and there is no site wiring fault.

When the input power is normal the Site wiring fault LED will flash.
• To disable this function, press the Site wiring fault LED button for 10 sec when the UPS is plugged in to wall power and the UPS is off.
• To enable this function, press the Site wiring fault LED button for 10 sec when the UPS is plugged in to wall power and the UPS is off.

Is the wiring fault light indicator lit? This means that the outlet that the unit is connected to is either not properly grounded, or has reversed wiring. First, try connecting the unit to another outlet. If the unit does not display the wiring fault light in the new outlet you will need to have an electrician correct the problem with the other faulty outlet.If it still displays the wiring fault more troubleshooting will be necessary to determine the cause

I removed the usb-card. Things work perfectly again.

Error Codes
A green LED indicates system faults
Steady On: System OK
Steady OFF: Board control fault or no power applied
1 Flash: Ignition failure (control in one-hour lockout)
2 Flashes: Pressure switch fault, fails open (switch is
stuck open)
3 Flashes: Limit switch open (main or auxiliary)
4 Flashes: Pressure switch fault, fails closed (switch is
stuck closed)
A yellow LED indicates flame status
Steady on: Normal flame is sensed
Flashes: As flame weakens, frequency of LED flashes
increases

If you mean by 'Warms up' actually getting hot Then I would think this is a non repairable fault and it should be replaced. Check out the Casio support site first though.