Q - My refrigerator is running and not cold enough, what are some things that I could check for ?
A - Some quick and easy stuff to check for is...
1) Are the interior lights shutting off when the doors are closed...2) Are the doors closing properly and the gaskets sealing as well...3) Is the fan in the freezer running...4) Is the condenser fan running at the back bottom of the fridge...5) Is the condenser coils in need of cleaning
For more specific refrigeration info please see the refrigerator pages.
Older refrigerators had electric heaters on the edges of the refrigerator cabinet to help prevent moisture from building up, especially in the hot/hazy weather in the summer time. These electric heaters usually had a switch where you could turn them on or off...had words like..."switch here to prevent moisture"...switch here in damp weather".... in the picture it is in the top left of the control assembly.
Then along came the energy crunch. The manufactures stopped using the electric heaters and started running a pass of the hot condenser tubing on the edges of the cabinet where the electric heaters use to be. This is often called ayoder loop tube SxS version and the yoder loop tube Top freezer version. This has now replaced the electric heaters. If you feel heat/hot around the door opening of your refrigerator you should....
- clean the condenser coils as a dirty condenser can make the tubing hotter than normal
- check/clean & replace if necessary the condenser cooling fan ( # F ) motor, if the condenser fan motor is slow or has quit the yoder loop pass will get very warm/hot to the touch
- If the condenser coils are clean and the condenser fan motor is running ok, check the fresh food and freezer section temperatures...if the refrigerator is not operating well and the temps inside are warming up, you could feel more heat/warmth than normal
also check out this link
http://www.applianceaid.com/refrigerator.html
Check whether the temprature settings are properly adjusted.and check out for the ventilations not blocked any where.
My fridge is running but not cold enough: Start out with the easy stuff first...make sure the lights go out when you close the door(s), make sure the doors are closing properly and the gaskets are closing fully and not torn. Check to make sure the evaporator fan in the freezer is working, this fan blows the cold air around. If the fan is not working, possible bad fan motor - check for power to the fan motor and also check the fan switches around the door openings, ( if your fridge has these switches, not all do ). A common problem cropping up in the last several years has been the air damper not opening up and allowing the cold air from the freezer to be blown into the fresh food section ( mostly on SxS refrigerators ). For many years the air damper was manually operated and now we have motorized controlled or temperature controlled or thermister and electronic boards controlling air dampers, and if this device sticks closed the FF section will normally warm up. An example picture of "one" style and an air damper ( called a diffuser by Whirlpool ). Next would be to check the condenser tubing, a good place to start is to make sure the condenser coils are not built up with dust!! Make sure the condenser fan motor is also working properly. Check for any "clicking on and off" noises from the compressor, is the compressor running.
The most common fridge "not cooling" problem is a frost free failure. Remove the access panel in the freezer section to expose the evaporator coils. If the coils in the freezer section get plugged up with frost, this frost will block the evaporator fan motor from blowing the cold air around. The fan blade can also hit this frost and either become noisy or stop altogether. Locating the defrost timer can be tricky....they are often hidden behind the back bottom corners of the fridge at the bottom, in the last few years the timers have been located in the ceiling of the fresh food section, and some behind the cold control cover. Once you locate the defrost timer, slowly turn the screw like wheel in the middle of the defrost timer with a straight screwdriver until the fridge shuts off. You are now in defrost. If the defrost heater(s) comes on now, replace the defrost timer and defrost thermostat. If the heater(s) does not come on, you can ohm test the defrost heater for continuity or volt test for 120 volts to the heater(s). If you have no power to the defrost heater(s) you can also bypass the defrost thermostat to see if the defrost heater will come on, join the 2 wires together to bypass the defrost thermostat. If the heater now comes on, replace the defrost timer and defrost thermostat. If the heater itself is bad, defrost the fridge with a hair dryer, replace the defrost heater* and defrost thermostat. If the defrost timer seems "hot" to the touch or is noisy ( like a ticking or screeching noise )...replace it.
*One new safety device added to refrigerators in the last few years has been a in-line fuse added to both sides of the defrost heater. If one of these fuses let's go, you must replace the whole defrost heater, as it comes as an assembly. If the defrost heater does not work, you should check for one of these fuses being open. Check it with a volt meter or ohm meter.
New link from Appliance Repair Aid on how the wiring circuit works for a frost free fridge, the link is here.
On a frost free refrigerator, the cooling coils should be in the freezer section. On a SxS style refrigerator the coils will be behind a cover on the back wall. On a freezer on top style the coils could be behind the back wall or under the freezer floor. Removing the cover and exposing the evaporator coils could be a valuable tool. Seeing what the cooling coils looks like may help split your not cooling problem. Totally covered coils with white snow is a frost free problem. A ball of ice on the coils and the rest of the cooling coils are bare or only a few coils frosted a little and the rest are bare is an indication of a system problem. Example picture one, example picture two, example picture three. System problems may be a leak in the refrigeration tubing, an inefficient not 100% pumping compressor.
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Thanks for responding. The internal dial in fridge is set at 3 (don't know what this equates to temperature wise.... Is the ventilation at the rear of the unit?
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