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Samsung Plasma F8500 - Breaker cuts off when tv is hooked up power. Need help!!

5001 Views 9 Replies 4 Participants Last post by Bndck, Jul 23, 2021

Bndck

Discussion Starter · Jul 9, 2021

Hi all,

First post here. I have Samsung F8500 series Plasma Tv since 2014. worked well until recently. suddenly while watching relevant circuit breaker trips. Since then I was not able to plug my TV to power outlet. Keep on tripping breaker off. It is 5A breaker. what would be the possible cause?

What's causing this? when i plug another device to same plug base, they work super fine.

Thanks for any help/suggestions!!

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DrDon

· #2 · Jul 9, 2021

5A breaker. That's not on a house wiring panel, is it? Most house circuits are 15 amps.

If it IS a house breaker, do you have something else running on another outlet on the same circuit? We have an induction cooktop on the same 30A circuit as the garage door opener. If I come home and hit the remote and the door stops about a foot up, I know my wife's cooking something.... and is probably upset that she had to reset the breaker. Probably need to run a second circuit, one of these days.

You'd need to look up the power requirements for that set, but 50" Plasma should be a little south of 300 watts. A 5 amp breaker at 120V would have to be subjected to north of 600 watts to trip, but that's the total of all things plugged into the circuit and running.

If you're sure nothing else is on that breaker and it keeps tripping, then either the breaker's bad (first place I'd look) or the TV is drawing more current than it should, indicating something wrong, somewhere, such as on the power board.

Rereading your post, if the mere act of plugging it in trips a breaker no matter where in the house you plug it in, something's shorted. Stop trying until you can troubleshoot or find someone to do it for you.

Doc

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RandyWalters

· #3 · Jul 10, 2021

Bndck said:
I have Samsung F8500 series Plasma Tv since 2014. worked well until recently. suddenly while watching relevant circuit breaker trips. Since then I was not able to plug my TV to power outlet. Keep on tripping breaker off. It is 5A breaker. what would be the possible cause? What's causing this? when i plug another device to same plug base, they work super fine.

If you're in North America, the smallest residential circuit breaker in your meter panel would be 15 amp, not 5 amp (i'm in the circuit breaker business FYI).

But if the TV is connected to some sort of plug strip etc then that may have it's own 5 amp rated circuit breaker built in.

So if you're plugging your TV into an actual wall receptacle and that immediately trips the circuit breaker in your meter panel, then there is likely a dead short in either your TVs power cable or possibly the power supply that's inside the TV.

Try plugging the TV into another circuit in your house (you can run a 50 ft extension cord to another room) and see if the other breaker for that room trips as well. If so, the problem is your power cord or the TV itself.

If your power cord is detachable from the TV, find other just like it and try it and see if the problem goes away. If the TV keeps tripping breakers with different power cords and in different rooms, it's something inside the TV.

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Bndck

Discussion Starter · #4 · Jul 11, 2021

RandyWalters said:
If you're in North America, the smallest residential circuit breaker in your meter panel would be 15 amp, not 5 amp (i'm in the circuit breaker business FYI).

But if the TV is connected to some sort of plug strip etc then that may have it's own 5 amp rated circuit breaker built in.

So if you're plugging your TV into an actual wall receptacle and that immediately trips the circuit breaker in your meter panel, then there is likely a dead short in either your TVs power cable or possibly the power supply that's inside the TV.

Try plugging the TV into another circuit in your house (you can run a 50 ft extension cord to another room) and see if the other breaker for that room trips as well. If so, the problem is your power cord or the TV itself.

If your power cord is detachable from the TV, find other just like it and try it and see if the problem goes away. If the TV keeps tripping breakers with different power cords and in different rooms, it's something inside the TV.

Thanks Randy,

I have plugged the TV to separate circuit which is 13A dedicatedly placed for an Air Conditioner. Sadly. thats also tripped. Now pretty sure it's about power problem in the tv's power unit?

.

Thanks

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DrDon

· #5 · Jul 11, 2021

Bndck said:
Thanks Randy,

I have plugged the TV to separate circuit which is 13A dedicatedly placed for an Air Conditioner. Sadly. thats also tripped. Now pretty sure it's about power problem in the tv's power unit? .

Thanks

Could be something as simple as the AC cord, itself. Could be the power board. Could be something even more time-consuming and expensive to chase down. Start by inspecting the cord, if it's the kind that can be detached from the set, itself. If you see signs of cracking or damage, replace it. Plug it into your 5A outlet without the TV attached. If the cord passes that test or a new one exhibits the same behavior, it may be time to seek professional help

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Bndck

Discussion Starter · #6 · Jul 11, 2021

DrDon said:
Could be something as simple as the AC cord, itself. Could be the power board. Could be something even more time-consuming and expensive to chase down. Start by inspecting the cord, if it's the kind that can be detached from the set, itself. If you see signs of cracking or damage, replace it. Plug it into your 5A outlet without the TV attached. If the cord passes that test or a new one exhibits the same behavior, it may be time to seek professional help

Hi DrDon.

All what you have mentioned I have already done. I should have used serge protector and cooling fan for this expensive device. But that's past. I still bereave this is a problem with power unit. I got opened back panel. PS unit seems ok. no blown fuses. My multimeter was not so good, I will try to find good multimeter to test each leisurely. I don't like to throw this Beautiful Display Panel. I attach herewith a picture of PS. any additional thoughts would be highly appreciated

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RandyWalters

· #7 · Jul 12, 2021

That power cable receptacle in your picture is a standard C13 configuration that a reqular desktop PC uses, as well as various PC monitors and LCD TVs etc and they are a dime a dozen. I've got some old ones at home and at work.

If you happen to have a desktop PC or another TV or monitor that use the same cable, try it's cable on your Plasma and see if it still trips the breaker. Or swap the suspect Samsung cable onto another TV or monitor and see if it still trips the breaker.

If you don't have a spare C13 cable maybe you can borrow one from a neighbor or friend. That receptacle on the power supply may also be dead-shorted too.

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Bndck

Discussion Starter · #8 · Jul 12, 2021

RandyWalters said:
That power cable receptacle in your picture is a standard C13 configuration that a reqular desktop PC uses, as well as various PC monitors and LCD TVs etc and they are a dime a dozen. I've got some old ones at home and at work.

If you happen to have a desktop PC or another TV or monitor that use the same cable, try it's cable on your Plasma and see if it still trips the breaker. Or swap the suspect Samsung cable onto another TV or monitor and see if it still trips the breaker.

If you don't have a spare C13 cable maybe you can borrow one from a neighbor or friend. That receptacle on the power supply may also be dead-shorted too.

I have done it already. I have dozens of PC cables 2 pins, 3 pins. I plugged some of them those are using still using on my desktop and other devices. same result. must be a neutral related issue?

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T.F.

· #9 · Jul 21, 2021

Hello!

Coincidentally I've got the exact same issue. However, after opening the back panel
and looking at the PS module, I discovered a broken component, a thermistor apparently.
A bit of it had split off and this fell into my hand while taking off the panel (see photos, it's
directly to the right hand side of that metal casing with the plug, between the two relays).
I'm not an expert by any means but I do think I can manage replacing it. Question is, though,
is this likely to be the entire issue, or will there be other defective components which led to
the thermistor breaking in the first place? What do you recommend I should be looking at
(and how)? Decent multimeter and soldering equipment are on hand.

Thanks very much for any assistance!

T.

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Bndck

Discussion Starter · #10 · Jul 23, 2021

T.F. said:
Hello!

Coincidentally I've got the exact same issue. However, after opening the back panel
and looking at the PS module, I discovered a broken component, a thermistor apparently.
A bit of it had split off and this fell into my hand while taking off the panel (see photos, it's
directly to the right hand side of that metal casing with the plug, between the two relays).
I'm not an expert by any means but I do think I can manage replacing it. Question is, though,
is this likely to be the entire issue, or will there be other defective components which led to
the thermistor breaking in the first place? What do you recommend I should be looking at
(and how)? Decent multimeter and soldering equipment are on hand.

Thanks very much for any assistance!

T.

View attachment 3156868 View attachment 3156869

I got the problem. It's the problem with MOS FET Transistor. Now I am looking for a replacement defect item. Samsung didn't reply yet. I want to find the Original one. it's Number RJL60S5

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