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Overload / short circuit in inverter - Black & Decker 1000w Power Inverter

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My inverter shows overload with no load


I've had a couple of inverters do that. In both cases, one or more of the switching transistors, or scr's, went bad. If they short, the unit will show overload.

Feb 03, 2017 | Inverter Electronics - Others

1 Answer

COLEMAN INVERTER PMP1200 JUST BEEPS WHEN TURNED ON


It is most likely the low voltage alarm. Suggest connecting when the car is running with no load (110 volts not connected). If the alarm continues turn the unit off and on to reset.

Hope this helps?

Inverter Protection Features
• Short Circuit Protection. The inverter will automatically shut down until short is removed.
• Low Voltage Alarm. An alarm will sound when the voltage from the battery discharges to 10.5 +/- 0.5 volts DC. This is an indication that the battery needs to be recharged.
• Over Voltage Protection. The RED LED Indicator Light will illuminate and the inverter will automatically turn itself off when the input exceeds 16.5 +/- 1 volt DC.
• Under Voltage Protection. The RED LED Indicator Light will illuminate and the inverter will automatically turn itself off when the input is less than 10.0 +/- 0.5 volts DC.
• Overload Protection. The RED LED Indicator Light will illuminate and the inverter will automatically turn itself off when the continuous draw of the equipment being operated exceeds 1200 watts or the surge draw of the equipment exceeds 2400 watts.
• Thermal Protection. The RED LED Indicator Light will illuminate and the inverter will automatically turn itself off when the circuit temperature exceeds 150° F

Sep 13, 2016 | Electronics - Others

1 Answer

Klv32s310A sony bravia gets start on with green light and after a second turns to stand by mode blinking the red light 6 times after each 2 second interval


Hello Sagar,
green led means tv powered on and status ok.
Red blinking light almost always means defect, overcurrent or overload.
6 blinks for Sony lcd flat tv means trouble in backlight circuit, or backlight inverter (backlight illumination or lighting makes your tv screen visible).
common problems in the inverter circuit, which drives the backlight, or shorted drivers, or short-circuit transformers or open circuits.
You should find the problem in the inverter circuit, or in the power supply board or in the main board.
Also look for bad capacitors (electrolytic caps) which are bulged and swollen on top.
Decoupling plugs from printed circuit boards can help you in finding the problem board by elimination method.
If you power up the set after unplugging certain plugs on f.e. the inverter board , this could result in getting a green power led and concluding that this board is faulty.

succes,
Walter from Antwerp, Belgium.

Dec 30, 2014 | Sony Televison & Video

1 Answer

Upc 900 why my overload alarme with no charge on it?


The overload circuit normally collects the current information from the inverter leg. At times when there is an actual overload, the protective circuit picked up the excess current as compared to the calculated value and thus gives an alarm. However at times when the inverter leg is short circuit or a leakage it also gives the same overload current. Is the inverter on when it gives the overload alarm? Please let us know.

Mar 13, 2011 | APC Back-UPS XS900 (BX900) UPS System

1 Answer

As load is apply inverter trip


Tripping Of Your Inverter / Circuit breaker when you use Kitchen range Can be because of Overloading or because of Short circuit . If There is an Earth Leakage Problem , Your RCCB may trip if you installed one .
Get Checked by an Electrician . you may need to use a higher rated MCB and Wires .
Please Rate my answer and Support me

Nov 21, 2010 | Kitchen Ranges

1 Answer

I have a Westinghouse LTV-32w1. The inverter is lighting the backlights for only a split second. Screen is still visible under an external light. The board is getting and holding it's 24 volts from the...


16 transistors did not go bad at the same time, of course. The inverter's driver IC has an overload sense circuit which causes the inverter to turn off.

There are too many possible reasons why an overload can happen and half of them do not involve shorted components.

Your easiest solution would be to replace the inverter. Unless you want to get into the repair business it might as well be the cheapest one.

Hope this helps.

www.coppelltvrepair.com

Oct 17, 2010 | Televison & Video

1 Answer

Generac generator on auto runs weekly. light green previuosly green. now red. what causes this??


Hi and welcome to FixYa I am Kelly. Your red LED is telling you that it was 1. overloaded. 2. has low voltage 3. overheated or 4. short in the powered circuit.

OVERLOAD LED (red): Lights up if the generator experiences
a load greater than the rated output, low voltage, overheats or
the powered circuit experiences a short. The output is stopped
even though the engine keeps running.

I do not know which of the 4 conditions caused your red light. If you have the read light with no load I would suspect low voltage from the generator / inverter. If it overheated you will also get the Red LED with no load.

Thanks for choosing FixYa.

Kelly

Aug 30, 2010 | Kitchen Ranges

1 Answer

Inverter keeps showing overload red led when its not overloaded


if there is no short circuit any were then the overload control may be bad

Dec 18, 2009 | Vector 3000w

1 Answer

No power output from my vector 1000w inverter.


Buy a different brand of inverter. Yours has developed a short which the protection circuit is catching. It then tries a restart but fails all over again. Most likely o/p short which looks like an overload to the inverter.

Jan 30, 2009 | Electronics - Others

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