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Danfoss compressor in Hotpoint RFA fridge freezer is humming but won't start. What is most likely cause. The unit is 18 months old, just out of guarantee Arnal.

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Assuming the relay is ok and relay is unlikely to fail in 18 months, i'm afraid you have a compressor fault

Posted on Jul 06, 2008

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Make sure that the temp probe from the thermostat is located exactly where the old one was. If it had a plastic sleeve on the old one, the new one will need that sleeve. You shouldn't need to calibrate the control if it is the one specified for this model. If it was a generic replacement then possibly it could need some adjustment.

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My Hotpoint FFS70N refridgerator (out of guarantee) is malfunctioning. Both the upper fridge cabinet and the freezer cabinet are at room temperature despite the temperature settings (at cold). There is...

Hi and Welcome to FixYa. I am Kelly.

There are many things that can cause your existing symptoms.

1. The Unit is controlled by an all-in-one control board that often is the main failure.
This l;ink is used as an example but is the control board for your unit:

2. The PTC Relay Device (Danfoss)
Part Link no picture: ptc-device.html">

3. The run capacitor: (Again no picture) 4 uf cap

4. The Thermistor PN 2601683 (not sure about part number as many conflicts with cross ref)

5. The actual compressor (1/5 hp) PN 2603850 or Type TWB1374MK

Any of the above can cause your problem. Check the compressor. If it is VERY hot to the touch unplug the unit for 30 minutes and then plug it in again.
If the compressor is cold the only thing you can do is start troubleshooting with the units wiring diagram and a meter.

I wish I could say _______ is causing your problem. Without testing components and knowing they are bad I can not say order _____ part. If your good with a meter and can locate the units tech sheet / wiring diagram you can isolate the failed part. Otherwise all I can say is what can cause your symptom as listed above.


Oct 07, 2010 | Hotpoint Refrigerators

2 Answers


You have one of two problems going on. Your fan is spinning at hitting the sides. Or your compressor is shot which seems to be more the problem and even though it is cold the humming sound is a warning for you that the compressor is shot and it is more affordable to replace the fridge then the compressor. Sometimes compressor can cost more then the fridge.

May 28, 2009 | Maytag 22 cu. ft. Bottom Freezer...

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I moved our 18 month old samsung fridge freezer Model SR281NW and one week later it has stopped working. The freezer fully defrosted and the fridge, even though it has the light on, is not cold

Is the compressor trying to run at all. Are any sounds coming from the area of the compressor? Like a hum and a click sound in that order? If the compressor is cold to the touch it could be a control problem. If the compressor is cold there are two things that shut its power off. The thermostat which controls the temperature or the defrost system. If the compressor is hot the problem is compressor related.

May 18, 2008 | Samsung Refrigerators

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Sounds like frosting up. Defrost completely...that can take 2 days. Restart. Also, clean the condenser. Check door gaskets, clean and replace as necessary. Don't keep door open longer than necessary.

Dec 20, 2007 | Refrigerators

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Is a Hotpoint refrig?? Ge (who makes hotpoint) is having trouble with the freezer fan howling. Check out posts on Ge SxS PSS models. Some say its the main board, i disagree.

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Freezer not working

there is a defrost fault - quite common with these hotpoint. fault could lie with the module or stats associated with defrost or possibly the heater itself. most probable is the module but impossible to localize by remote control. water drains away thro a hole in the centre of the tray underneath the evaporator

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Refrigerator stopped after only having 18 months

"part that starts the compressor" could be the thermostat or the compressor relay. most probably the thermostat. the 'stat is indeed nothing to do with the compressor and is only the switch that makes the compressor start. the part is reasonably cheap and easily replaced. hotpoint refrigeration is as good as any and i don't have a vested interest

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