Inverter shut down rectifier - Powerware Plus 36 UPS System

It would depend on the type of oven. On non-inverter ovens, it is attached to the high voltage capacitor; which is usually oval in shape and 2 to 3" long. They are usually black in color. On inverter ovens, depending on the brand, there are usually at least 2 of them on the inverter board. IGBT's have 3 leads. The rectifiers have 2, and will be electrically connected to a filter capacitor. They frequently have burned spots on them when they fail.

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Follows are the part of the manual
Possible causes
• The cooling fan does not rotate.
• The ambient temperature is too high.
• The vent is blocked up.
• A heat generating device is installed close to the inverter.
• The thermistor in the unit is broken.
Remedies
Restart the operation by resetting the
inverter after it has cooled down enough.
• The fan requires replacement if it does
not rotate during operation.
• Secure sufficient space around the
inverter.
• Do not place any heat generating device
near the inverter..

hi, Your tv has problem with its back light inverter stage. All LCD TV have back light to illuminate the pixels. There are two types of back lighting CCFL(Cold Cathode Fluorescent Lamp) and LED. In your tv its ccfl. As it is ccfl it need a high voltage above 1000v. To provide such a high voltage there will be an inverter stage in all lcd tv with ccfl back lighting. Normally in LCD tvs there will be three boards such as Mother board , Back light inverter board, and power supply. In your tv the ccfl back light inverter stage is faulty. There will in inverter transformers in the inverter board. As it is high voltage transformer there is possibility of its winding get shorted. If so it will drain a high current from the power supply and the protection circuit will shut down the voltage to the inverter board. check the inverter board first. Also there is possibility of bad electrolytic capacitors in the inverter board will lead to this type of problem. First of all check the supply voltage from the power supply to the inverter board. Change the electrolytic capacitors in the inverter board and in the power supply stage. If the problem is not rectified then you have to replace the inverter board. ok

HI,

IF YOU HAVE A SOLID BLACK LINE RUNNING VERTICALLY THEN YOU HAVE A FAULTY MATRIX INVERTER. IF CENTRAL THE MAIN VERTICAL INVERTER NEEDS CHANGED. LEFT = LEFT VERTICAL INVERTER RIGHT=RIGHT.........

ANOTHER WAY TO GET THIS FAULT IS WORN OR DAMAGED RIBBON/PLASTIC GOING FROM THE SCREEN MATRIX TO THE INVERTER

GOOD LUCK IN RECTIFYING THE FAULT, THANKS

That shows tv shuts down due to some internal problem that could be in power supply board or back light inverter board etc.
Local tv repair shop will help you to rectify what board is defective if you have no prior experience of tv repair.

I asked some clarification questions, but received no answer.

Because I see that your question is still standing, I will try to help you, but I am not sure, because I did not have your answers.

Your inverter I think is not CyberPower, but Thomas & Betts.
Your UPS has internal battery, which depends upon the type of the UPS.

If your battery is 270 V DC (which means 20 x 12 V batteries) 135 V will not be enough to charge them. But if you have 135 V DC (which means 10 x 12 V batteries) you can not give to them 270 V, because you can spoil them.

That's why you should measure the voltage on the batteries, not at the rectifier.

1. If the batteries have the correct voltage for their number 135 for 10 batteries you can not adjust it to 270, you should adjust 135.
2. If it is 270 for 20 batt's your rectifier did not get your order.
3. If it is lower then the number of batteries multiplied by 11 V you may have a bad battery or completely discharged batteries and you need to charge them outside the UPS by other charger (One by one or in series) until their rated voltage is reached.
4. Some of your internal breakers may not function well.

The TV use 110V 60Hz sine wave AC, after rectified will be 156V DC, your inverter may be output 110V square wave AC, after rectified only 110V DC, it is too low for the TV work. except it can adjust to 155V.

I too facing the same problem ?
If supply is switched off UPS also shutting down.
But the battery is fine. Back up is not comming.
Any body help me in this regard.

My mother had the same problem and she was going to trash it. Me being an extreme environmentalist, dint wanna let it go to the scrapyard. Got it down to Mumbai India checked with the engineers down here and rectified it. Problem was with the Magnatron. You would need to replace it. Well this one's getting repaired and off to a institution in need like the Home for the Aged rather than some scrapyard.