Mitsubishi electric air conditioner turned on for a while and flashed 1. What is the fault?

The compressor overload protection device tripped.

The external machine stopped after running for 2 minutes. It is likely that the overload protection cut off the power supply due to system problems. For example:

1, poor heat dissipation leads to high pressure and compressor overheating.

2. The pipeline is blocked, resulting in high voltage tripping.

3, lack of fluorine, leading to compressor exhaust temperature is too high and overheating.

4. Excessive fluorine will increase the compressor load and lead to overload protection.

5, liquid compression, compressor antifreeze protection action.

Extended data:

Working principle:

Mainly used in air compressor to adjust the start-stop state of air compressor. By adjusting the pressure in the gas storage tank, the air compressor can stop and rest, which has a maintenance effect on the machine. Air compressor factory debugging, according to customer needs to adjust to the specified pressure.

Set the pressure difference. For example, the compressor begins to pump air into the air storage tank. When the pressure reaches 10kg, the air compressor stops or unloads. When the pressure reaches 7kg, the air compressor starts again. There is a pressure difference here. This process can give the compressor a rest and achieve the effect of protecting the air compressor.

The compressor is directly driven by the motor, which makes the crankshaft rotate and drives the connecting rod to make the piston reciprocate, causing the volume change of the cylinder. Due to the change of pressure in the cylinder, air enters the cylinder through the intake valve and the air filter (muffler). In the compression stroke, compressed air passes through the exhaust valve due to the reduction of cylinder volume.

Through the exhaust pipe, the one-way valve (check valve) enters the gas storage tank. When the exhaust pressure reaches the rated pressure of 0.7MPa, it is controlled by the pressure switch and automatically stops. When the pressure of the gas storage tank drops to 0.5-0.6MPa, the pressure switch is automatically turned on and started.

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