I talked to hatachi about this.as i had a customer that had the same problem.there tech support said that they have had a few of these do this. it is caused by some **** in side the tube connecting the two tanks when it was welded.they said over time it should stop as wares with time.will not harm anything but is extreamly irritating.The offer no solution. which is bull !!!!!!!!!!!
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I understand that your Frigidaire refrigerator, model# FFSS2614QS, is making a strange humming noise. Your new, high-efficiency refrigerator may introduce unfamiliar sounds. These sounds normally indicate your refrigerator is operating correctly. Some surfaces on floors, walls, and kitchen cabinets may make these sounds more noticeable. This could possibly be the compressor that you are hearing. Modern, high-efficiency compressors run much faster than in the past. The compressor may have a high-pitched hum or pulsating sound. Hope this is helpful.
If its the compressor, the compressor is bad and needs to be replaced, typically when they do that, they will short out, and trip the breaker. It could be the condenser fan motor going bad too, knocking/pinging noise seems more suspect to a fan motor going out or a bent fan blade.
There are 2 possible cause of that noise 1 is coming from your fan motor and the 2 is the compressor stand is broken. Or water that never comes out on the pan of the air condition try to drain it first before proceeding the 1 and 2 tips.
lots of compressors make strange noises and run for years. I hate to suggest installing a hard start kit simply because I always wonder what we did before they came out with a hard start and machines lasted longer BUT, check amps on start up, amps while running, watch amps for a bit while it's running, install hard start kit. just like all mechanical equipment, it may last 5 weeks, it may last 5 years. Best Wishes!!
You have two fans and a compressor which could be making the noise. Inside the freezer behind the back cover is the evaporator fan. It probably stops running when you open the door. Hold the door switch down to keep the fan running to see if it's making the noise. the compressor and other fan is under the unit accessed from the back behind the cardboard cover.
pinging noise low octane. mix gasoline half and half.half 87 and half 89.run it severals days if it still ping have it scan to check detonation sensor.a bad detonation sensor will also make car ping alot.
Thanks for your question, I hope I can help some. My answer is long winded but full of good info.
The noise could be as the GE guy said refrigerant (gas) noise. If it is refrigerant noise it happens as the liquid refrigerant comes out of the tiny capillary tube and enters the evaporator (cooling) coil in the freezer. Along with the liquid coming through the capillary tube there often are gas pockets. The flow of the liquid and gas pockets into the evaporator coil cause strange sounds. If the noise you are hearing is this refrigerant noise, you should only hear the noise while the compressor is running and then only for a short time (1 to 2 minutes) after the compressor shuts off.
If the noise continues after that I do not think it is a refrigerant noise.
There are times when the compressor will not be running but the fan in the freezer will be running on this model. This is normal and working properly but if the noise is present when the freezer fan is running and the noise stops when the freezer fan stops, the likely cause will be the main board located in a square panel on the rear of the refrigerator above the compressor compartment. I know that sounds crazy but the main board can cause the freezer fan motor to make some really strange noises. Eventually the board will probably fail.
One other test would be for you to listen for the compressor to turn off, then if the noise is present after the compressor turns off, you would next unplug the refrigerator from the receptacle. If the noise continues with the refrigerator unplugged it must be refrigerant noise. If it stops, I am betting on a bad main board.
I tried to locate for you information on a material that Whirlpool and Frigidaire as well as some others use as a noise deaden-er that they wrap around where the capillary tube enters the evaporator. I was not successful in locating anything. I am sorry I could not find it. supertechks
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