My side by side fridge freezer is making a loud buzzing noise which lasts about 5 mins and then stops. It seems to be coming fromn the back of the unit and also stops if the door is opened

no problem with that it is normal..your ref working properly it is just the motor you hear

It sounds like the evaporator fan is hitting ice that is built up on the evaporator coil. When it's making the noise, open the freezer door and see if it stops.
(Most models are wired so that the evaporator fan cuts off when the freezer door is open.)
Check the inside back, lower panel of the freezer for ice built up or frost on it. If there is, you have a defrost problem that is most likley a bad heater. It's located around the coil inside the freezer behind the panel you will be looking at. The defrost problem would explain the freezer not freezing ice cream.

need to remove rear panel inside of freezer section. check for normal operation of evap fan motor. check for ice build up on evap.

either the noise is coming form he ice maker fill valve( but if its of and still aking noise i doubt it. it also possible that the noise is coming from the compressor itself, overheating nad trying to restart in which case would give a slight "buzz" noise for 5secs or so then "click" off, and wait maybe 3 min to restart again. look for melted ice andperhaps your ice dream ont as hard as it should be???

check you compressor relay. could be bad.fan motor might be dead

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it should come back after about 20 mins only and should cool back after about 10 mins.

i'm afraid the buzzing sound could be coming from your compressor which can not start. the over current relay is tripping off after 20 seconds to prevent the compressor from burning up.
i suggest to unplug the ref, let it cool for 1 day, re plug it after a day and observe the compressor if would run.

if the buzzing sound is still there and the unit is no longer cooling, then the compressor is not running.
check the relay of the compressor. it could just be the relay.

tnx 4 using fixya,

drcool

The problem is a buildup of ice on the plastic housing (the curved plastic bit) in the back of the freezer under the fixed shelf where the icetub goes. The fan behind this plastic housing is hitting the ice when the defrost comes on.

Unplug the fridge, unpack the freezer, remove the four screws in the back, take off the sheetmetal backing and let the fridge thaw. You can remove the plastic piece after a while and get the ice off (be careful not to remove the styrofoam insulation by going too quickly).

Reassemble and you're back in business, for a few months. I'm never buying Samsung again myself.

i don't know jennair specifically being from england.
however, there is often a fan inside the back panel and the noise you heard was the fan hitting ice. the reason now not heard and fridge not working may be that the ice has built up so much the fan is jammed

Check your blower inside the unit, blower frame may be deformed causing the blower to touch the frame make some noise.

I have a 1.5 year old GE refrigerator and freezer. This unit had not given me any problems until 2 days ago when I constantly heard a loud buzzing sound coming from the freezer. I called GE and Best Buy (bought it there) and asked to troubleshoot this over the phone. They suggested sending a technician over for $100 just for the visit + labor + parts which could add up to hundreds of dollars. So, I researched the web and blogs like this. The answer to my problem was simple. Something that I placed inside the freezer was blocking the air circulation vent. So, I turned off the whole refridgerator and I removed everything from my freezer. For good measure I dislodged some ice and frost that had developed over the vent. I carefully put back everything into the freezer, but this time being careful not to block the vent. I turned on the power and voila! No more buzzing sound!!! I hope this works for you too.