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David West Posted on Mar 23, 2018
Answered by a Fixya Expert

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Bosch KTR18420 fridge. motor does not run but hums very quietly, radiator cold. if hot water put in cabinet, radiator gets warm

Just bought 2nd hand, no history. transported upright and left 24 hours.

1 Answer

Bill Boyd

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  • Bosch Master 53,816 Answers
  • Posted on Mar 24, 2018
Bill Boyd
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Joined: Jan 04, 2013
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Call atechnician to check the start/run capacitor for the compressor for the hum
but what you describe is normal
it takes heat in the cabinet tp evaporate the liguid gas which the compressor then converts back to liquid
in that process the back fins get hot or the back of the fridge gets hot
and that will remain hot until the thermostat switches off the compressor in which case the fins will get cold

5 Related Answers

Anonymous

  • 19 Answers
  • Posted on Feb 07, 2009

SOURCE: Freezer quit working

I suspect when you lifted or moved the freezer, you tilted the compressor such that the oil washed out into the refrigeration lines. Common when people tilt refrigeration equipment the wrong way.

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Sea Breeze

John Tripp

  • 4656 Answers
  • Posted on Aug 27, 2009

SOURCE: hot motor

Replace the start relay and overload. Sea Breeze

Anonymous

  • 166 Answers
  • Posted on Oct 31, 2009

SOURCE: radiator cool, engine temp = 140

sounds like your radiator is clogged, it will bring problems to you soon, you need to flush it really good, i dont think you need to replace it but it sounds like a typical clogged radiator, have it flushed, it you cant ur gonna need to replace it soon, if you keep running that car it might lead you to a temp problem while runing and u might end up hurting your engine...
u also need to check if your thermostat is working properly. go on google and look for the procedure, ur gonna have to take it off and do a test with hot water and a thermometer and see if its working properly.
hope this helps.
have fun!

Sea Breeze

John Tripp

  • 4656 Answers
  • Posted on Jul 08, 2010

SOURCE: Moved fridge...runs but now does not cool

Just unplug and let the compressor oil that flowed into the freezer evaporator to flow back to compressor. Unplug and wait 24 hours until trying to restart. Ifyou can not feel or insure compressor is running wait longer. The oil is thick and in liquid state it must seep through a hole about 10 feet and the opening can be as small as a sewing neddle. Let me know if this has been helpful, Thank You Sea Breeze

Testimonial: "we need to try both of these solutions and then get back to you. Seems reasonable."

woodchuck789

Charles T Nevin

  • 4070 Answers
  • Posted on Sep 02, 2010

SOURCE: hotpoint fridge freezer ffa60 red

Check to see if the fan near the compressor is running. It should run when the compressor runs. Spin it and it may start.

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My refrigerator is general cool owned by climatic brand has started to not cooling as it should be, after a month, the freezer started not to freeze as before and gradually frozen food started to melt...

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The purpose of a refrigeration system is to move heat from the cabinet and dissipate it into free air.

When a refrigeration system is working correctly the compressor, some of the pipework and the condenser will become quite warm and hand-hot in some cases - the interior of the cabinet must then become cold unless there is a fault.

If the compressor runs and the condenser doesn't become warm, either the compressor is broken or the refrigerant has leaked away. If the condenser is warm but the cabinet isn't cool enough either the compressor isn't running long enough or the defrost panel is being left switched on.
If there is a doubt about the compressor control, the thermostat and sensors, etc. It can be temporarily bypassed for the purpose of testing the other refrigeration components and system.
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The compressor won't switch off until it either overheats or the fridge cabinet is cold enough for the thermostat to switch it off and if there is a fault preventing it cooling, it is likely to run until doomsday though it is worth mentioning an auto defrost panel if stuck switched on can cause this...

If that is the problem the compressor will be working hard and will become quite hot as will the condenser and one of the compressor pipes.

When power is supplied to the motor it is likely to hum whether it is running or not, though it is a different sort of hum if it isn't running.
If the compressor pipes aren't getting hot/cold and the condenser isn't warm/hot then either the compressor is broken, not running or the refrigerant has escaped.
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Bosch KTR18420 frige. motor does not run but hums very quietly. if hot water put in cabinet, radiator gets warm

I tried the DIY service
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Look for:
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  2. the outdoor radiator coil should get warm/hot and produce warm air.
  3. indoor radiator coil needs should get cold and produce cold air.
The ac needs the fan motor(s) working and compressor running and pumping. Compressor skinny copper line hot and thick line cold.
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Ok i got a 2004 chevy monte carlo and it seems to be over heating i changed the thermostate out and i dont believe its the water pump because its not leakn around the seal and i noticed its only geting hot...

YOU SHOULD FLUSH ENGINE BLOCK BEFORE INSTALLING NEW THERMOSTAT.YOU NEED RADIATOR FLUSHED AND ENGINE BLOCK FLUSHED.ALSO REPLACE THE RADIATOR PRESSURE CAP.
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Hi we have an LG 232 SBF fridge freezer and the fridge section has recently stopped working. The freezer appears to be ok and there is a very quiet hum coming from what I assume is the compressor/pump unit...

You will need to check the evaporator it may be iced up. Two things may cause this the evaporator fan motor may be bad or the condensate drain could be clogged and causing the water to freeze on the evaporator. When the evaporator gets iced the air can't pass over it and get cold.
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Fridge and freezer not cold

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Help!!

IF THE COMPRESSOR GOES BAD THROW IT AWAY ITS NOT WORTH IT.Y DID YOU CHANGE THE CAP?
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