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Re: buzzing noise from compressor start relay
Sounds like your compressor is going bad, getting to hot , pull the unit from the wall and cleanall vents under and behind rear cover, make sure fan is running ot cool of the compressor, youll have 5 yr coverage on your compressor if needing repaired
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Compressor problem. There are start components mounted on the side of the compressor, and should be removed and tested. The parts include the start relay, (start/run capacitor if it has one) and the overload switch. To test these components you must have a working knowledge of electrical an use of a good VOM meter. If not, remove the parts, and take them to an appliance parts house. They usually are happy to test them for you. If they test O.K. you have a failed compressor. P.S. If this machine is under 5 years old, the compressor is under warranty, (some have an extended 10 year warranty). if the warranty is in effect, do nothing. Call the dealer who would handle the warranty. You would have to pay for replacement of the start components, but having it serviced by an authorized warranty station will keep the balance of the compressor warranty in effect. Hope this helps... Jack
I would check for a bad starter relay first unless you can verify that the sound is comming from the compressor. How to check stuff>
I had a similar problem yesterday. I woke up and the freezer was not working anymore. It would make a buzzing noise and then it would click and shut off. I looked online for some possible solutions. Here is what I did: I unplugged the fridge. I pulled it out and took off the cardboard backing. I used an air compressor to blow out all of the dust and dirt that had accumulated on the condenser coils. A shop-vac just wasn't powerful enough to pull out all of the dust/dirt. After that, I plugged it back in....and the same thing was happening. It would buzz, and then it would click off. I figured out that the "click" was coming from a starter relay (a small plastic piece attached to the big black compressor). I detached the plug from the relay and then detached the relay from the compressor. The relay was burned out. It turns out this is a common problem with the relay. I replaced the relay for $50 (from an appliance parts store) and put the whole thing back together in about 10 minutes. I plugged the fridge back in and the compressor started, and now the freezer works better than other. I saved about $400 doing it myself, all in about one hour. And better yet, my wife was very impressed. Not bad for a doctor.
The black ball you are reffering to is the compressor.It is trying to start..that is the buzzing.The start,and overload relay is probably bad..hopefully.Because if it isn't the compressor may be bad.Where your wires plug into the compressor...this is the relay.it should come off fairly easy.It is much cheaper to replace this part..than buying a new fridge.For instance i buy them for g.e. refrigerators all the time from an appliance repair shop at cost,and they are less than 4 dollars for me.So I assume they aren't too expensive retail.
heres a part number for the overload relay assy 5304468029.. its mounted on the side of compressor. its a tricky one, usually my experience has been the noise comes from a bad compressor( which you should have 5 year full warr from manufacture). sometimes the overload relay does go bad preventing compressor from starting,the n ew compressor will come with a new overload relay
I note this is a very old post. The compressor is not starting and what you were hearing was the PTC relay energizing followed by the KilXon thermal overload kicking off the compressor start sequence. What happens is that the PTC relays sometimes get a heated contact. Due to the weakened state of the contact it can cause a buzz. Even with a goo PTC relay you would hear the compressor buzz if it was not starting. In that case the run capacitor may have failed or the compresor rotor is internally locked at which point the start cycle will repeat every 3 to 4 minutes as the thermal overload cycles and the compressor will not start.
The only thing a capacitor does is 'kick' the compressor to start it. There is a box on the compressor containing the start relay. If it is defective or dirty, it might buzz. With the power off, find it, remove its cover and use some canned air to blow off any dirt inside. If that doesn't fix it, replace it. If there is a fan down there, be careful...and be sure it is working.