Electrolux ERF4014AOW fridge – LED pcb trouble

[ravve007]

I have an Electrolux ERF4014AOW fridge, and the internal lighting is not working. The lighting is done by a LED pcb (not any bulbs), which I removed to troubleshoot/replace. but before I replace it for a new one, I would love to verify that it is the LED pcb indeed that is failing.

I have 2 questions:
1. There is no visible door switch, I suppose it is magnetic then. Where exactly is the magnetic switch located? I want to verify that it is actually working.
2. Is there any schematic / diagram to be found for the LED pcb? I like troubleshooting electronics but I feel lost without a diagram. Or maybe there are instructions somewhere, like a video or so…

Many thanks!

[electrofix]

you will need to let me have the complete Pnc number

the ones i looked up for this model have a simple door sw and no pcb

Dave

[ravve007]

Hi,
Sure, here is the pnc number: 925052098-00
I have already removed the lamp, I am holding it in my hand and yes, it is a pcb (not a bulb) 🙂

[ravve007]

Sorry, it is ERF4114AOW, not ERF4014AOW 🙂

[electrofix]

ok the led light seems to be fed with a yellow and white wire off connector J1 on the board

I would guess looking at the led light its not a mains supply so probably 12V DC from the main pcb

you will need to measure the voltage at this point to see what it there both with door open and closed to make sure it switches off

assume the voltage may be high until verified but i think it looks like a 12v system

Dave

[ravve007]

Thanks for this reply! 🙂
I assume you have some kind of schematics or service manual, because I can´t find this kind of information in the user manual? If yes, maybe you could send it to me plz?
Yes, the light is fed with a yellow and white wire (maybe white and red, dont remember now). Where can I find the main pcb? I was thinking of measuring the voltage at the connector itself (the one that goes into the light), easiest would be to plug in the light again and measure at the connector while it is connected to the light, since it is hard to get the multimeter probes in contact with the connector when it is de-connected.

Another test would be to use continuty test with the multimeter on the led pcb, but to do that I would need a schematic to follow… 🙁

[electrofix]

you dont get pcb circuit diagrams so unless you can work it out your sunk on that one

main wiring below

Dave

[ravve007]

Thanks so much for all this help! So now I have measured at the connector: 1.74 VDC! That can´t be right, seems that there isn´t enough voltage coming to the connector..? Should I located the power board and measure voltage on that end, or what to do next? Maybe 1.74V is correct, but I doubt it?

[electrofix]

I doubt it too
am expecting at least 12V

did you test with lamp in or out of circuit ?

Dave

[ravve007]

Oh, I was testing voltage with lamp in circuit *DOH*, I removed it and now it shows 12 VDC 🙂 Yey! Too bad I can´t figure the schematics, I guiess I´ll order a new lamp pcb than. Thanks for everything man, you´ve been great!

[electrofix]

lamp could have a short on it causing this

you will never get schematics for any board you just have to work it out

Dave

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