There was frost on back wall of freezer, the refrigerator was not cooling, the fan was working.
After defrosting, we closed it up to see if that helped. Now everything has stopped completely and now we have a single flashing light on the freezer indicator, middle light (on door...no label, no clue what it means).
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here are a couple of things to check. First look at the back inside wall of the freezer and see if it is getting coated with frost or snow. If yes, you probably have a problem with the defrost system usually the defrost heater burns out first. Once you replace the heaters, all the excess frost has to be melted off the cooling coils behind that wall. A hair dryer works well for this. Another thing t check is the fan motor that is back behind that same wall. If the fan stops for any reason--- you loose cooling on both sides.
Is the freezer freezing? Do you hear a fan motor running inside the freezer? If the freezer fan is working and the freezer is still getting cold, do you see allot of frost on the back wall of the freezer?
Freezer not cooling at all - t-stat or compressor would be where to check next
No fan running in freezer and freezer is cold - bad evaporator fan motor.
If fan is running and you have heavy frost on the back wall of freezer - unit is not defrosting. could be defrost timer or defrost t-stat
If there is a lot of frost build up on the back wall of the freezer section you are having a defrost problem and the coils behind that wall are filling up with ice restricting air flow and letting fan blades hit it. If not a lot of frost the evap fan motor is going bad which is also located behind the freezer wall. Good luck.
Open the freezer door and look at the back wall. If there is frost on the back wall, you have a defrost problem, which means air cannot circulate over the cooling coils located behind the freezers back wall. You will have to remove the back wall and melt all the frost with a hair blower, then replace the defrost heater. (part number WR51X10055) . This is assuming that the fan by the compressor and the one inside the freezer are working.
Check to see if there is frost on the rear wall o f the freezer wall. If so, the units cooling coils (behind the frost) may be covered with ice. Defrosting is necessary. The refrigerator may not be defrosting at regular intervals a required. Standing open for a couple of days should defrost it but it will still be necessary to find out why it frosted over. There is a defrost control that automatically melts ice from the cooling coils on a regular basis. Maybe this control is not functioning.
Check for frost on the back wall of the freezer section. If no frost buildup is noted check that the condenser under the refrigerator behind a removable panel in back is clean and that the fan there operates when the compressor runs.
If you have frost buildup in the freezer section on the back wall you have a defrost system problem. These problems are not related to the cleaning ladies work unless some paper or other item may be stopping the fan from turning.
Side by side and other refrigerators are controlled or cooled by one system. Look to the freezer side for frost buildup on the back wall of the freezer. Frost buildup on the back wall of the freezer stops the air that cools the refrigerator from circulating. Frost on the back wall indicates a problem in the defrost circuit related to the timing device, heaters or defrost thermostat.
Check the back wall of the freezer compartment for snow or frost buildup. Fan running would indicate that the temperature of the coil which cools is cold. If you find a frost buildup on the back wall you more than likely have a problem in the system defrost circuit. You need a service tech.
Generally speaking if the refrigerator does not cool and you have frost on the back wall of the freezer it suggests a defrost problem. However since the refrigerator started working by itself it would point to an air circulation problem from the fan in the freezer compartment failing to operate. The frost on the back wall without the fan operating would cause frost buildup because the heat is still trying to get to the coil through the back wall. If your refrigerator freezer has a door fan light switch something holding the door partly open would cause the fan not to operate. Look for a button or toggle and manually push it in. You should hear the fan turn on and the light will go off.
Check for frost build-up behind back wall in freezer. If there is a heavy frost build-up, it's not defrosting. This will restrict airflow to refigerator section and can stop fan. If fan is stuck again and it's not because of frost, replace evaporator fan motor.