Question about Refrigerators

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Hello I have a GE Profile refrigerator Model#PFS22SISBSS. About 9 months ago, I replaced the main board with the newer wr55x10942 part. It started working well and did so for several months until just recently it stopped cooling as well as it used to. Fridge temp=38 dergrees; Freezer=23 degrees and it is working all the time with a loud buzzing sound coming from behind (somewhere between the bottom of the fridge and the mother board. Has the motherboard gone bad again, or is it the compressor?...or something else. Thanks for your help. Sincerely, Phillip Velinov

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  • velinovi Jun 05, 2010

    It is not so much the sound that bothers me, but more so the refrigerator's inability to cool down both the fridge, but even more so the freezer to the specified temperature. I disconnected, cooled, and reconnected the main board, which was rather hot. In about an hour and a half the freezer dropped down the temp. by 2 degrees (it is 23 degrees now) and fridge by 4 degrees (39 now). Thanks for your advice and solution.

  • velinovi Jun 09, 2010

    The temperature of the refrigerator is being held either at the programmed 37 deg. or it goes down below to 35, but the freezer's temp is still between 10 and 15 deg F with a programmed 0. The compressor when first kicking in is rather loud (loud buzzing sound) at some point it becomes quiet as it is supposed to and cools better. I took out the main board and replaced it about 9 months ago. With us gone in the last month the temp in house has gone up to 80-85 degrees. When I checked the main board it was hot. I unplugged it and let it cool down, then plugged it back in. The buzzing started again but later it started working normally as described above for the first time. In the course of the last 3 days the freezer has been able to drop from 24 to 10-15 degrees, which is not great but is something. The coils are clean, there is nothing touching the compressor that would make the loud noise. I also don't want to change the start relay and capacitor unless I am absolutely sure that this is the problem. Please, let me know what you think. Thanks

  • velinovi Jun 09, 2010

    Please, before you answer my question read all the information I have given in the previous entries. Yes, the refrigerator part is cooling well-it is right on the programmed temp (37 deg F or +/- 2 deg). The freezer, however, is very slow to cool all the way to 0 deg F. It has taken 7 days after our arrival (the cold air in the house was turned on then)for the freezer to drop the temp. from 23 deg F to 12 deg F. There is loud buzzing, which sometimes goes away while the compressor is working. If this is a compressor problem, is there anything I can do without replacing the whole compressor? Is it not possible, that the unit simply overheated during a month of hot weather and no air-conditioning in the house, and it is taking time for it start working normally? Is it the relay and capacitor? Is it the main board? So far, I have had 3 experts answer my question, and have gotten 3 different answers, and YET THIS IS THE SAME REFRIGERATOR WITH THE SAME PROBLEM. Thank you for reading the previous remarks and for your input.
    Sincerely,
    Phillip Velinov
    317-730-6799

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4 Answers

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If you hear a buzzing noise from the compressor area then its not always that compressor is faulty and needs to be replaced.There are many other possibilities That has to be checked before ruling out the compressor faulty.
Beside the compressor there is a relay.its a compressor relay.Relay many a times gets cracked due to over heat and makes noise.Also if you remove the relay out and shake you hear a rattling noise from the relay if its faulty.cracked.The other cause can be the fan on the compressor.Its can compressor fan.If the fan motor is gone weak then it can make the buzzing noise.as the motor is gone weak so it requires more power to spin the fan and this noise can occur.The other thing to check is the Defrost timer.There is a defrost timer beside the compressor and compressor relay.Its a white color box.If this timer is not spinning or spinning very slowly.Then this can be the noise of capacitor in the timer.the timer is the part which sets the compressor to start and stop.While in defrosting mode the compressor fan starts running and while in frost mode the compressor fan stops.So get this three things checked first.All the things can be checked with meter.If they checks out ok.Then yes the fault can be in the compressor.As the board is replaced 9 months ago.So board going bad in such a less time is bit rear but still cannot be ignored.
This will help.
Thanks. keep updated for any more query.you can rate this solution and show your appreciation.

Posted on Jun 09, 2010

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Buzzing sound is always involved with the compressor. Check the compressor first before replacing it. If is faulty please do replace it.Is the refrigerator cooling well and working ok? If not then it must be surely compressor.

Posted on Jun 09, 2010

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  • Refrigerators Master
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Hi,
It sounds to me like you have another different problem now... the compressor may or may not be going bad, but it at least is not starting properly every time. This may cause it to owrk till it shuts off and then need a few tries to start again, and that is the buzzing sound you are hearing...changing the start relay and capacitor may help or eliminate to problem, at least for a while...

You can read more about this in a tip that I wrote....

Refrigerator Compressor Start Capacitor and Start Relay
http://www.fixya.com/support/r4023749-refrigerator_compressor_start_capacitor

Refrigerator Troubleshooting Refrigerator Compressor
http://www.fixya.com/support/r3885294-refrigerator_troubleshooting

heatman101

Posted on Jun 05, 2010

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Hello,

The problem is no the mother board, the problem is from the compressor, follow the below procedure and solution to resolve the problem.

This can be annoying. Unit noises are, sometimes, normal, but most are signs of very serious issues. Any type of knocking, or pinging, will indicate that there are serious issue that concern the compressors internal seal, and structure. Normally, these noises will be located at the actual compressor area. Here are some other common noises that will occur overtime. These are , generally, repairable and pose no serious threat to the unit.

Lets start with the common hissing and popping. Hissing and popping is normal on frost free refrigerators, it is the defrost heater, in this case. I would check these following areas to address any other abnormal noises. The next issue will deal with proper leveling of the unit.

If the level of the unit is not adjusted to proper specs, this will create an unstable operating condition, causing many noises to emit from the units structure. inspect the unit for proper level. adjust if needed. Secondly will be the drain pan. Once removed for cleaning, the pan must be replaced in position correctly. If not, the pan will rattle against the compressor, causing a rattle.Simply reposition the tray if this is the case. The third possible issue will be the condenser fan. The condenser fan is located behind the refrigerator. It may be necessary to remove an access panel to reach it. This fan has a shroud or cover, and if the fan blade becomes warped, it will rub against the shroud, causing noise. This fan blade is whole,and it can be removed and replaced if this is the case. Ok, the fourth problem spot will be the evaporator fan.

The evaporator fan is located at the back of the freezer. It may be necessary to remove obstructions such as the contents of the freezer, freezer shelves, ice maker and the rear inside panel of the freezer, as well. The rear panel may be held in place by retainer clips or screws. Remove the screws or depress the retainer clips with a small flat-head screwdriver. Check the fan for warped blades. if the blades are warped or mis-aligned, replace it. This fan also is protected by a shroud as well, and it will make noise if the fan blade is damaged.

Now. The last area of concern will be the compressor mounts. This is the most common spot for noise overtime. The compressor sits on rubber mountings. Those rubber mountings are designed to absorb vibration from the compressor. As the mountings age, or depreciate, they can become very hard(Dry rot), or disintegrate. When this happens, the compressor vibration is transmitted to the refrigerator structure and it can cause noise.The compressor is located in the rear. It may be necessary to remove an access panel to expose the compressor. Once exposed, remove the screw or retaining clip of just one of the compressor mounts.Using a pry bar, lift up the compressor enough to slip out the rubber mount. Inspect the mount for deterioration. The rubber should be firm but not rigid. If the mount is crumbling or hard, it should be replaced. If you can do this alone, i suggest you get someone who can do it for you.

Take care.

Posted on Jun 05, 2010

  • 1 more comment 
  • velinovi Jun 05, 2010

    What about the inability of the freezer to cool down to 0 degrees F? Can that issue be related in any way to the buzzing sound? If yes, then that will narrow down your answer. In such a case, which of the scenarios described by you might actually be the problem? Thanks

  • Sulaimon Jimoh Olayemi Jun 05, 2010

    Hello,

    Yes, the noise can result in your refrigerator not getting cold. Inspect the gasket for dirt or debris that could prevent
    it from
    sealing. If you find any, remove the large debris, then wash the gasket,
    using a scrub brush and warm, soapy water.

    Check the gasket for
    cracks or tears that can let cold air escape. If
    you find any, replace the gasket.

    Check for coil problems. The
    compressor can overheat due to dust
    buildup on condenser coils. If so, vacuum the coils.

    Take care.

  • Sulaimon Jimoh Olayemi Jun 05, 2010

    Hello,


    This are the related problem with your
    refrigerator, troubleshoot with the above to solve the problem of your
    refrigerator not cooling.

    Take care.


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