What Should I Do If The Refrigerator Does Not Work?

The Principle of Refrigerator Refrigeration

The refrigerator mentioned here is a compression refrigerator that is used more. The motor provides mechanical energy, and the compressor performs work on the refrigeration system. The refrigeration system is made by the principle of absorbing the heat of vaporization when the refrigerant with low boiling point is evaporated. When the compression refrigerator is used, if there is no refrigeration, you can check and deal with it from the following places.

Troubleshooting and Repair

1. Power problems

First, check the power supply of the refrigerator to see if the connection of the power supply is normal and whether the plug is powered on and inserted firmly. After plugging in the plug, you can see if the refrigerator light is normal. If that doesn’t work, you can use an electric pen to test the socket for power.

Processing method: plug in the plug. Check whether the power supply voltage is within the range required by the instruction manual, generally within 187 ~ 242V, if it is not within this range, you need to be equipped with a voltage stabilizer or find a professional to solve it. If the socket is damaged, the socket needs to be repaired.

2. Compressor failure

Check the condition of the compressor. When the compressor is working normally, it will emit a small motor vibration sound. If the high-pressure output buffer pipe in the compressor is broken, or the screw fixing the pipe is loose, it will cause the high-pressure pipe to not exhaust, and the low-pressure pipe to not inhale, although it is running but not cooling.

Treatment method: Open the case and replace with a new buffer tube; if the screw is loose, tighten the screw.

3. The refrigerant runs out or leaks.

Run the refrigerator for 3-5 minutes, then disconnect the power door to see if there is a sound of water flowing. If not, the refrigerant in the refrigeration system has run out or a leak has occurred.

Treatment method: As soon as possible, let the relevant maintenance department weld and repair the loopholes in the refrigerator and refill the refrigerant.

4. The refrigerator capillary is blocked.

Check whether there is heat at the outlet; there is frost in the part where the capillary enters the evaporator, and the evaporator hears a faint chirp.

Treatment method: remove the capillary or remove the dirty block. The refrigerator has been used for a long time, so check it regularly.

5. The condenser racks are full of dust and oil, and the heat dissipation is poor.

Treatment method: Gently brush the dust with a soft brush or wipe off the oil with a dry soft cloth.

6. The contacts of the thermostat switch are stuck and the action fails, causing the circuit to be in a connected state for a long time.

Treatment method: If it is determined that the thermostat is faulty, it is necessary to fold it down to repair or replace it with a new thermostat in time.

Troubleshooting steps

1. First, check that the power supply should be connected reliably; whether there are visible dirt and ice blockages in the refrigerator and the outside of the machine;

2. Whether the thermostat is placed in the “0” block (strong off block); if so, put it in the 4~5 block to retry the machine online;

3. Remove the refrigerator control box and check that the contact between the thermostat switch terminal and the power cord should be reliable and correct;

4. Remove the thermostat, screw the shaft clockwise to the bottom (ie, the cold spot), at room temperature (20~25°C), connect the two output terminals of the multimeter to terminals 3~6 of the thermostat, respectively. Conduction between terminals (products with strong off or alarm signal); then connect 3~4 terminals, the terminals should be connected (any type of product); then connect 3~2 terminals, the resistance value should be ∞ (for K61 product); otherwise, the thermostat is not working properly;

5. The connection or electrical circuit of other refrigerators is caused by disconnection, disassemble and check in detail.