Samsung RSH1 Side-by-Side Compressor not running

[matt.s]

Hello,

I’ve got a Samsung RSH1UHPE Side-by-Side fridge that won’t cool anymore, neither freezer nor fridge are working. I narrowed it down to the compressor, which isn’t runnnig at all.

Following this service manual http://www.frigomaks.com/galeria/samsung_rsj1k-f-j_rsh1k-f-j-d-b-n-s-z_{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d}5BET{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d}5D.pdf, I also tried to get the compressor running using “forced operation”. No success. At the moment I’m following the flow chart on page 69, but I’m stuck at the step “The output of Load
MICOM #4 is High (2.5V)”.

Which one is the “Load MICOM” IC? I attached two pictures, is it IC number 1, 2 or 3?

I also noticed the red LED (circled in the picture) is flashing.

Thank you very much for your advice, it really would be a pity to throw away this machine if there’s the slightest chance of repairability.

Have a nice evening,
Matt

[admin]

Re: Samsung RSH1 Side-by-Side Compressor not running

Hi

Check the fuse on the small suppressor board and also the ice maker solenoid and freezer light bulb

Bryan

[matt.s]

Re: Samsung RSH1 Side-by-Side Compressor not running

I checked the fuses on the supressor board and the inverter board, both are fine. The freezer light bulb is working.

I’m not quite sure how to check the ice maker solenoid: I disconected the white-black cable labeled “ice maker solenoid” from CN71 and measured between this cable and the black cable from the supressor board. I got a resistance value of 180kOhm…not quite sure what I measured there, the value seems to be way to high for a solenoid resistance?

[admin]

Re: Samsung RSH1 Side-by-Side Compressor not running

Hi

Where about are you ?

Also inverter compressors have a 10yr warranty If I remember correctly and it and the whole appliance cooling has a 5yr warranty. How old is it ?

The model code you give doesn’t refer to a inverter compressor ?

Bryan

[matt.s]

Re: Samsung RSH1 Side-by-Side Compressor not running

I’m in Germany. I bought this machine used, so I’m unsure of its age and have no documents to claim any warranty. I’ve never heard of a 5 or 10 year warranty on those freezers, but if there is, maybe I can get some proof of purchase from the previous owner. Anyways, he claimed it’s about 3,5 yrs old.

The compressor model used in my machine is an EQ4A5QL2X/E01. This is a inverter compressor? How can I check if the compressor or the electronics is the problem if forced operation isn’t working and the fridge isn’t showing an error code pressing the top two buttons on the front panel?

[admin]

Re: Samsung RSH1 Side-by-Side Compressor not running

Hi

If its an inverter or compressor problem then the neon flashes on the inverter board and there is a diagram on the back giving the fault flashes.

Bryan

[matt.s]

Re: Samsung RSH1 Side-by-Side Compressor not running

Hi Bryan,

there is a red LED on the inverter board, flashing like this:

“Blink” “Blink” “2 seconds pause”

I took a picture of the diagram on the back of the fridge (see attachment), but I couldn’t find any fault codes…neither on the PCBs or in the service manual 🙁 Am I missing something?

[Lawrence]

Re: Samsung RSH1 Side-by-Side Compressor not running

is there anything on the inside of the PCB cover i.e a key to the flashes ?

[matt.s]

Re: Samsung RSH1 Side-by-Side Compressor not running

Nope, the PCB cover is just a sheet of metal without any prints 🙁

Is there a way I can test if the compressor is mechanically blocked? Like e.g. connect 230VAC to wire X and Y?

If got an digital multimeter, but unfortunately it has no min/max function. Is there a way I could determine if the inverter output is fine without it?

[admin]

Re: Samsung RSH1 Side-by-Side Compressor not running

We can see what the fault code your having after Saturday as we are both away in meetings till then

[matt.s]

Re: Samsung RSH1 Side-by-Side Compressor not running

r600a wrote:We can see what the fault code your having after Saturday as we are both away in meetings till then

That would be really helpful, thank you very much!

I just checked the over load relay, model number “4TM319SFBYY-82”. It rattles when I shake it, is that normal? I measure zero ohms between its contacts, that’s good right?

Could anyone explain or link a website that explains how this overload protection is supposed to work? I don’t see any direct electrical connection betweeen the 4TM319SFBYY-82 and the compressor, and it doesn’t look like it’s a good heat conductor neither. I searched for a while but couldn’t find anything.

[matt.s]

Re: Samsung RSH1 Side-by-Side Compressor not running

I further investigated on the Klixon, it’s a TM4 from Sensata http://www.sensata.com/klixon/motor-protector-4tm.htm. All the pictures I found online are showing a metal clip where mine has just plain plastic, could that be the problem?

[matt.s]

Re: Samsung RSH1 Side-by-Side Compressor not running

I tried to check inverter output using a digital multimeter and following this instruction: http://www.orionair.co.uk/air_conditioning_compressor_inverter.htm

Is this a valid approach? Because I get MAX readings between 38 and 125VAC. It seems to be depending on which phase I’m measuring, but even for the same phase I get different readings when I replug the fridge multiple times. Watching the energy meter I put between the plug and the socket, it looks like the electronics is only once trying to start the compressor, after a surge of 150-300W lasting maybe half a second, the power consumption stays stable at ~21W. Maybe the digital multimeter is just too slow to accurately measure the maximum voltage applied to each phase? Any experience using this approach?

I also noticed that the LED flash code changes when I’m disconnecting the compressor, so at least there’s some logic still working fine.

With compressor: Blink Blink 2s pause
Without compressor: Blink 3s pause

[lee8]

Re: Samsung RSH1 Side-by-Side Compressor not running

Try this

Sent from my GT-N7000 using Tapatalk

[matt.s]

Re: Samsung RSH1 Side-by-Side Compressor not running

Thank you very much for sharing this!

According to this picture, I’ve got a defective Inverter PCB. Is this picture directly applying to my model code number? E.g. should I buy a new inverter PCB based on this information alone?

[Author]

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