How to know what is wrong with your refrigerator and parts to repair it

Sometimes it feels good when you rest assured that the food, vegetables, meat or anything you kept in your refrigerator will serve you and there is no need of cooking/hurry that time.

But to you your amazement when you open your refrigerator to pick your item you are welcomed by a weird smell of something rotten or gone bad.

What comes to your mind at that moment is ‘’is my refrigerator working well’.

Yes, this calls for a thorough check up to see that if every part of the refrigerator is working well.

Finally, it dawns on you that your refrigerator has malfunctioned and needs a repair.

Cheer up because some of these repairs you can fix them by yourself without calling a repairman.

In the article below it will enable you to understand different ways of repairing the non-functional parts of your refrigerator and the basic knowledge of refrigerator repair.

Refrigerators and freezers have two basic components, condenser, and evaporator coils. The condenser is the coil found on the outside of the unit while the evaporator coil is found inside the unit.

How to start

  • Disconnect your refrigerator.
  • Call you refrigerator attendant.
  1. REFRIGERATOR ICE MAKER NOT WORKING

There are several reasons why ice make may not be working

Ice maker assembly-It is composed of different units if you find that one is damaged it will require you to replace the whole ice maker assembly since they are not sold separately. Also check the water inlet valve, fan, and inlet if they are functioning. Ensure the freezer’s temperature is the required as per the model.

Water inlet valve-This is an electrically-controlled valve that supplies water to the dispenser and ice maker. If it is not working or has no pressure it will not allow water to flow through. Check also the power.If power is well circulating and has sufficient pressure but the ice maker is not filling to make ice you will be required to replace the water inlet valve.

Door switch-It helps to turn off the ice and water dispenser when the door opens.

If it fails the dispenser will not turn on. Use a multimeter to test if it is working, if not you are required to replace it.

Water filter-Food particles may clog the water filter thus preventing water flow to the dispenser which will make ice maker not work effectively. It is recommended water filter be replaced after every six months for good water flow and quality.

Ice maker mold thermostat-it monitors the temperature of the ice mold (ice tray) when well supplied with temperature, the icemaker ejects ice cubes and refills the ice mold with water. If you realize that the thermostat is not working after testing it will make the ice maker not make ice. It should be replaced to ensure the temperature is well circulating in the ice maker mold.

Freezer temperature above 10 degrees F (-12c)-This will cause the ice maker not to produce ice cubes. The freezer temperature should be set between 0 and 5 degrees Fahrenheit (-18 to -15C) for the ice maker to work properly. Check if there if there is an accumulation of frost in the evaporator coils. If defrosted part of the evaporator coil is likely to fail.

Low water supply fromthe house supply-The water inlet valve require 20psi to function well. Always check the pressure and water flow. If the water inlet valve is faulty replace it.

Ice levelcontrol board-This determines and controls the amount of ice that enters the ice bucket.

It ensures there is no overflow or low supply. If the ice level control board has a malfunction it will cause a lot of damage to the icemaker hence no ice will be produced so replace it for effectiveness.

Ice maker switch-Check if the switch is on if it off turns it on. Also if it is not lighting test it to see if it is defective.

Ice maker module-The icemaker module is equipped with a motor that cycles the ice ejector arms or turns a tray to eject the cubes into the ice bucket. When the thermostat or sensor on the icemaker tray reaches about 15 degrees Fahrenheit, the motorcycles to release the ice cubes. If the icemaker module has ejector blades, check to ensure that ice cubes are not stuck in the blades. If after testing it is not working replace it.

2. REFRIGERATOR WATER DISPENSER NOT WORKING

Listed below are several causes that may make water dispenser not to work:

Waterinlet valve-when water inlet valve opens it supplies water to the dispenser.

Mostly if the water inlet valve is defective or there is low water pressure water will not flow to the dispenser. The valve requires 20psi to work effectively. After testing with a multi meter and founding it defective replace it so that the dispenser can work well.

Frozenwater tube door-The freezer temperature should be 0-10 degrees fare height. If the temperature goes low it will cause the water line to freeze. This may call for it to be thrown.

Dispenser control board and switch (Combined)-Control board governs most of the functions in the dispenser system. Always test all the dispenser components before the control board since one default part may cause the control board not to function. After testing the other components if still, it is not working it may call for replacement of the whole control board. The switch sends voltage to the dispenser. If you realize it is not circulating after testing with a multimeter it will require replacement.

Auger motor-Auger motor spins the auger blade and pushes ice through the dispenser chute. When the power interference the auger motor may be burned and this will cause the ice not to move and fall through the cute hence causing the dispensers not work. Replace the burned auger motor.

Dispenser motor door– this is the door that opens and closes and prevents cold air from coming out of the dispenser. If at times you find the motor door not working it will cause the dispenser door not to open so you will be required to replace the motor door.

Low water supply from the house supply-The water inlet valve requires 20psi to function well. Always check the pressure and water flow. If the water inlet valve is fault replace it to ensure water is getting into the dispenser.

3. REFREGIRETOR NOT COOLING

When you find your refrigerator not cooling it means the several parts which may be defective.

Dirty condenser coils– these are usually found beneath the refrigerator, when they are dirty they may cause heat not to be dissipated also affecting the temperature and thus making the refrigerator to work hard to cool. Clean out the debris and your refrigerator will work well.

Condenserandevaporatorfanmotor (combined)-Condenser fan circulates air to the condenser coils and the compressor. Sometimes it may be blocked by the things in the freezer hence blocking circulation; you may be needed to move the item and if even after you find it is not spinning it may be damaged thus calling for the replacement. Evaporator fan motor ensures air is well circulating through the refrigerator compartments. If not it will make it not to cool the refrigerator, so after testing with a multimeter and you find it default replace it.

Start relay-This works with the start winding and start the compressor. If the start relay is damaged it may cause the compressor not to run hence causing the refrigerator not to cool. Replace it to avoid further damage.

Start capacitor-This provides power booster to the compressor during start-up. If the capacitor is not running it will make the compressor not to start at all. Test it and if it does not well replace it to ensure efficient cooling.

Compressor-This is a motor that compresses the refrigerator and circulates the refrigerant through the condenser and evaporator coil. If it is not working it will cause the refrigerator not to cool, test it and if it is not good to replace it.

Main control board-Before replacing the main control board, test the other parts and if they are working well you will only need to replace the main control board.

Temperaturecontrol board-This provides voltage to the compressor and fan motors. If the temperature control board is not working, there will be insufficient or high voltage hence causing damage and making the refrigerator not to cool. Replace it.

Thermostat-it is an instrument that monitors the temperature and sends it to the control board. The control board regulates power to the compressor and evaporator fan based on the thermostat readings if it is not working, test it and replace it.

4. REFRIGERATOR RUNNING CONSTANTLY

This may be caused by several components not functioning well i.e.

Dirt in the condenser-Clean all debris accumulated to avoid dirt blocking heat circulation hence causing the refrigerator not to cool.

Inaccurate temperature settings-The freezer temperature should be set between 0-5 degrees Fahrenheit (-18 to 25c) If not set well it will cause the refrigerator not cool well. Always have the settings as required.

Door Gasket-If this door is not shutting tightly warm air may enter and cause the evaporator coils to ice over. Check if it is a default and replace it.

Freezer temperature above 10 degreesF (-12c)- The freezer temperature should be set between 0 and 5 degrees Fahrenheit (-18 to -15C). if the freezer temperature is above 10 degrees Fahrenheit (-12C), the refrigerator will not be cold enough. If the freezer temperature is too high, ensure that the condenser coils are clear of debris and the condenser fan is working properly. In addition, check to see if frost has accumulated on the evaporator coils. If the evaporator coils are frosted over, part of the defrost system has likely failed.

Defrost Heater assembly-It turns severally and continuously to melt away the defrost that might have accumulated in the evaporator coils. The evaporator coils are frosted over, the refrigerator will work harder to remove the heat. As a result, the refrigerator will run constantly in an effort to cool down. Replace the Defrost Heater assembly if it is not working.

Evaporator fan motor-when it is failed the refrigerator runs constantly, replace it for smooth

Condenserfan motor-Check on the condenser fan motor underneath of the refrigerator. Sometimes it may be blocked by food debris hence causing it run constantly. Remove them from the fan to run effectively.

Main control board- A few times a day the control board is supposed to turn off the cooling system and turn on the defrost heater to melt away any frost that may have accumulated on the freezer evaporator coils. If it is not working it may cause the refrigerator to run constantly. Replace it.

5. REFRIGERATOR NOT DEFROSTING

Defrosting may not happen because of:-

Defrosttimer-this ensures that the required time for the defrost heater is maintained for it to melt any frost that may have accumulated at the evaporator coils. If the defrost timer is not sending power effectively it will mean you replace it.

Defrostcontrolboard-This determines the defrosting cycle if the control board is damaged the cycle will not work well. Before replacing it first check the defrost heater and thermostat.If they are working well it will only require you to replace the defrost control board.

Defrost sensor with a fuse– The defrost sensor monitors the temperature of the evaporator. The defrost sensor has a fuse to back up the sensor in case the sensor fails. Test the fuse if it is working, if not replace it to ensure defrosting is continuing.

Main control board-The main control board regulates the power supply to all of the refrigerator components, including the defrost system

Before replacing the main control board, test the other parts and if they are working well you will only need to replace the main control board.

Defrost Heater assembly-It turns severally and continuously to melt away the defrost that might have accumulated in the evaporator coils. Replace the Defrost Heater assembly if it is not working for the freezer to defrost effectively.

6. REFRIGERATOR WATERLEAKAGE

When they are water leakage, it may be caused by several parts not functioning well i.e.

Watertankassembly-Check if they are any leakages in the water tank assembly if found replace the whole unit.

Water inlet valve-this supplies water to the dispenser and ice maker. If cracked /damaged or has loose fitting it will cause water leakage. Ensure there is tight fitting and if cracked replace it.

Water filters housing and head (combined)-Check if they are cracked and replace them.

Water filter-If water filter is not fitted well it may cause leakage. Reinstall and fit it well.

Drain pan-The drain pan collects the water that melts from the evaporator coils. If the drain pan is cracked, it will leak water as the defrost cycle is running. Replace it to avoid leakage.

7. REFRIGERATOR LIGHT NOT WORKING

This could be caused by:-

Light Assembly-These supplies light to the entire inside of a refrigerator

If not functioning buy the light assembly and replace it.

Light Bulb-If damaged or not working replace it.

Light socket and door switch-If you detect they are not proper, use a tester to test and if they are not working replace them.

Lightboard-This supplies voltage to the unit. If not functioning replace it.

Door switch-Test the door switch to ensure it is working if defective replace it.

8. REFRIGERATOR ICE MAKER OVERFLOWING

Overflow may be caused by;-

Low-pressure water supply from the house supply-water inlet valve supplies water to the refrigerator ice and water dispenser. When the pressure is too low it will cause water to leak to the icemaker hence causing overflow.

Icemakerassembly-If one icemaker assembly is not functioning it will cause overflow. So replace it

Water inlet valve-when water inlet valve opens it supplies water to the dispenser.

The water inlet valve requires a minimum of 20 psi to shut off properly. If the water pressure is too low, the valve may not close fully once the power is shut off. As a result, the valve will leak water into the ice maker and cause the ice maker to overflow

9. REFRIGERATOR REFRIGERATOR MAKING NOISE

Loud noise may be irritating and this may be caused by:-

Evaporatorfunmotor-when it is failed, it may produce a noisy sound when the door opens. When you hear the replace it.

Condenser fun motor-Check on the condenser fan motor underneath of the refrigerator. Sometimes it may be blocked by food debris or the fridge is too much to the wall. Move it and check /remove any blockage and incase after that it is still making noise replace the entire condenser fan motor.

Compressor-When the compressor is wearing out it might produce this noise. Call your attendant to replace it.

Water inletvalve-when ice making is filling and you detect some noise it shows the water inlet valve is fault this needs to be replaced

10. REFRIGERATOR DEFROST DRAIN CLOGGED.

Mostly this is caused by:-

Drain heater-this prevents water in the drain from re-freezing and clogging the defrost drain. If the drain heater is not working or well positioned it may cause freeze over.

Clogging or freezing defrostdrain-if defrost drain is frozen it will cause water to overflow to the drain tough and drip over to the compartment. Always ensure the drain if free from debris.

Drain Strap– The drain strap is a small piece of copper or aluminum that attaches to the defrost heater and extends partway into the defrost drain. When the defrost heater turns on, heat is conducted through the drain strap to melt away any ice that has accumulated in the defrost drain.If the drain strap is not well it will cause defrost drain to run over.Replace it for effectiveness.

11. REFRIGERATOR WARM BUT FREEZER COLD

This may be caused by:-

Damper control assembly-This opens and closes to ensure proper cold air circulates the entire compartment. If damaged it will cause the refrigerator not to cool. Remove and replace it for effectiveness.

Temperature control board-This provides voltage to the compressor and fan motors. If it is not functioning it will prevent voltage spreading to the compressor and fan motors.

Before replacement test on the other components and if they are okay replaced only the temperature control board.

Defrost control board -this determines how the defrost cycles runs. If it has malfunctions it will cause the defrost cycle not to run hence causing accumulation in the evaporator coils. Replace it for proper functioning.

Defrost thermostat-If defrost thermostat if not working it will cause the thermostat contacts not to close causing power not enter into the defrost heater. Replace it so that power may circulate and defrost cycle may continue.

The evaporator coils are frostedover-Over the day the defrost heat assembly rotates severally to melt away any frost accumulated in the evaporator coils.Whenever the defrost heat assembly is not working frost will keep on accumulating to the evaporator coils hence causing restriction of airflow through the coils making the refrigerator not to cool.Test

the evaporator coils to determine if they are frosted over and if they are not, well replace it. try replacing it.

Main control room-Sometimes main control might be affected by one of the assemblies which may be a default.Test all the other components to ensure they are well.If they are working well test the main control room and if it is defective, replace it.

Defrost timer-Defrost timer turns severally to melt away any frost that could be accumulated in the evaporator coils.If the defrost heater is not working frost will continue accumulating into the coils hence making the refrigerator to work hard to cool.If this cycle continues effectually the refrigerator will stop cooling and become warm. Test the defrost time and if it is not working replace it.

Thermistor-It is used to monitor refrigerator temperature then it sends it to the control room.Control room then regulates power to the evaporator fan and compressor according to the readings in the thermistor.If the thermistor has a problem the evaporator fan and compressor may run irregularly.For effectiveness test the thermistor with a multimeter and if defective replace it.

Evaporator fan motor-This one draws cold air over the evaporator coils and circulates it over the freezer.If the evaporator fan is not working the refrigerator will not cool.Turn the fan blades by hand to determine if the evaporator fan motor is working.If the fan blades are not turning freely replace the fan motor.If the motor is producing some noise replace the motor.Test the motor windings to see if the working.Eventually, if the motor does not run replace the evaporator fan motor.

12. REFRIGERATOR NOT FREEZING FOOD

Causes may be:-

Temperature control board-This provides voltage to the compressor and fan motors. If damaged it will make the refrigerator not to cool hence causing food not to freeze. Test the other components and if they are working you will only be needed to replace the temperature control board.

Main control board-Before replacing the main control board, test the other parts and if they are working well you will only need to replace the main control board.

Damper control assembly-This opens and closes to ensure proper cold air circulates the entire compartment. If damaged it will cause the refrigerator not to cool. Remove and replace it for effectiveness.

Thermistor-It is used to monitor refrigerator temperature then it sends it to the control room.Control room then regulates power to the evaporator fan and compressor according to the readings in the thermistor.If the thermistor has a problem the evaporator fan and compressor may run irregularly causing the refrigerator not to cool hence freezing.For effectiveness test the thermistor with a multimeter and if defective replace it.

Damper-The damper open and closes to control the amount of air that gets into the refrigerator compartment.If it is stuck open it will cause too much cold air to get inside the refrigerator.Check if it is stuck or damaged and replace it.

Temperature control thermostat-This provides voltage to the compressor and fan motors. If it is not functioning it will prevent voltage spreading to the compressor and fan motors. Before replacement test on the other components and if they are okay replaced only the temperature control thermostat.

Always have a maintenance check –ups for your refrigerator to avoid break –ups and disappointment.

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