Today i am gonna to to guide you about how to fix refrigerator compressor not running problems, which we mostly face. This is a complete guide of fixing fridge compressor not working or running problems. In this post i am writing about the common problems of refrigerator compressor and how to fix these compressor problems step by step with complete explanation.
There are many problem which may case of Ref or fridge compressor stop working, but i try my best to cover some most common reason. We will highlight it step by step....
Mostly compressor or fridge not working in case of no incoming power supply, for this issue first of all check your main distribution board to check breaker from which you get your supply for your refrigerator or for electrical outlet which is in used for your REF. If the breaker is in off or tip state then on it and if still it is trip again then check your supply line, may be a short circuit in your supply. Now if you switch on the breaker and breaker not tripping then check the outlet where your plug in the fridge plug, for testing the outlet (socket) the easiest method is that to plug in the plug of other electrical appliances (i.e example stand fan, set the knob of multi meter for testing AC voltage and insert the meter testing leads to the outlet.) Now if outlet have not receiving the power supply then change the outlet or fix th e outlet problem. For that call a professional and if you can do this him self then do it but carefully. Here some posts which help you about outlets connection.
Also read
How to wire Electrical Outlets?
How to identify compressor terminals?
8 Reason of refrigerator / fridge not cooling
What is PTC Relay and How its works?
What is working of Overload Protector?
How to check compressor winding?
Then next common problem of compressor not starting is that " your fridge supply wire will be cut internally", in this case your refrigerator all machinery will not work, the cooling fan, light etc. Note that in above electrical supply problem the refrigerator will same problem and other devices cooling fan , light etc will not working too.
The other common reason of compressor not running is that your fan internally light will be glowing but your compressor will not working, for that i suggest yo u test first of all the internally thermostat that refrigerator thermostat is working or not working, As you know that thermostat is connected in series with compressor and supply goes through the thermostat, now if thermostat is stop working and making a open connection then how can the electrical supply will run to compressor. For that fix the refrigerator thermostat or change it.
In some cases, some one or mostly children move the thermostat knob on switching off direction, so first of all chick the thermostat switch and if this on off direction then change the direction of thermostat knob. One thing more that we use thermostat switch for regulating the temperature and if your compressor start only for some time and before to make ice , compressor is switch off, so in this case your refrigerator thermostat switch is on low cooling , for that do setting of your refrigerator thermostat for high cooling.
Capacitor is also one of the reason of refrigerator compressor not running. Some time we use capacitor with capacitor start relay which make a strong starting current for starting compressor. There are two types of capacitor which we use with refrigerator compressor with relay which are starting capacitor and running capacitor. And if capacitor not working then change capacitor with same type of capacitor.
Refrigerator Compressor Not Running Problems and How to Fix it
There are many problem which may case of Ref or fridge compressor stop working, but i try my best to cover some most common reason. We will highlight it step by step....
Mostly compressor or fridge not working in case of no incoming power supply, for this issue first of all check your main distribution board to check breaker from which you get your supply for your refrigerator or for electrical outlet which is in used for your REF. If the breaker is in off or tip state then on it and if still it is trip again then check your supply line, may be a short circuit in your supply. Now if you switch on the breaker and breaker not tripping then check the outlet where your plug in the fridge plug, for testing the outlet (socket) the easiest method is that to plug in the plug of other electrical appliances (i.e example stand fan, set the knob of multi meter for testing AC voltage and insert the meter testing leads to the outlet.) Now if outlet have not receiving the power supply then change the outlet or fix th e outlet problem. For that call a professional and if you can do this him self then do it but carefully. Here some posts which help you about outlets connection.
Also read
How to wire Electrical Outlets?
How to identify compressor terminals?
8 Reason of refrigerator / fridge not cooling
What is PTC Relay and How its works?
What is working of Overload Protector?
How to check compressor winding?
The other common reason of compressor not running is that your fan internally light will be glowing but your compressor will not working, for that i suggest yo u test first of all the internally thermostat that refrigerator thermostat is working or not working, As you know that thermostat is connected in series with compressor and supply goes through the thermostat, now if thermostat is stop working and making a open connection then how can the electrical supply will run to compressor. For that fix the refrigerator thermostat or change it.
In some cases, some one or mostly children move the thermostat knob on switching off direction, so first of all chick the thermostat switch and if this on off direction then change the direction of thermostat knob. One thing more that we use thermostat switch for regulating the temperature and if your compressor start only for some time and before to make ice , compressor is switch off, so in this case your refrigerator thermostat switch is on low cooling , for that do setting of your refrigerator thermostat for high cooling.
Some time overload burn or cut due to high current flow, this happened when the supply off and again ON in some seconds, and the ptc relay can no start compressor again and compressor get high current and overload cut internally. (This happened because when compressor is running form the ptc internal heating resistor heated and make high level resistor shape between the run and starting terminal. As you know that ptc relay heating resistor provide a starting current form run terminal to start terminal for a small time and when its provide current to start terminal its heat up and due heat up the heating Resistor make high resistance and stop the current from run to start.)
So test thermal overload protector by using the multi meter and if thermal overload have connectivity between two points then your thermal overload is working and have no internal problem but if the thermal overload is internally open then change it. (Note that when thermal overload temperature is high its make an open circuit, so the best method is to cool the thermal overload protector and when its cool test it by using the multi meter.
Capacitor is also one of the reason of refrigerator compressor not running. Some time we use capacitor with capacitor start relay which make a strong starting current for starting compressor. There are two types of capacitor which we use with refrigerator compressor with relay which are starting capacitor and running capacitor. And if capacitor not working then change capacitor with same type of capacitor.
Due To Low Voltage
Voltage is also one of reason of which make refrigerator compress or not running, so use a voltage regulator or voltage steplizer to provide the same ratio voltage which compressor need to start.
I hope this article help you fix refrigerator compressor not running problems, however if you have still face any fridge compressor not running or working problem then you can ask in below comments section.
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