Maintenance method of central air conditioner without reflection

Maintenance method of central air conditioner without reflection

The L and N resistances are infinite, and the fuse may be burned out or the transformer (Transformer) may be burned out. Open the decorative panel of the indoor unit and inspect the main board. The fuse is good. When measuring the transformer, it is found that the primary circuit breaks, causing the office building central air conditioner to fail to respond. There are many:

　　 The reasons for the non-response of the central air conditioning in the office building are as follows;

　　 First, turn on and off the device and try to check whether the remote control has a battery.

　　Second, there may be a problem with the circuit board. Check the socket and circuit board to see if the fan (DraughtFan) and the compressor are reflected.

Third, the compressor shaft or motor winding is burned out. Gree air conditioner fault code f0 can be found on the computer version of such a plug, and then find the sensor by line. It is very convenient to replace by yourself, just move the connector. The fault code of Gree air conditioner will often encounter some faults during the process of using Gree air conditioner, and the direct way to judge the fault z* is to see what the code is displayed on the air conditioner display. The compressor has a mechanical fault (fault), which makes the compressor stuck and cannot rotate; the motor winding is burnt out due to overcurrent or insulation aging, and the compressor cannot be started.

Fourth, the starting relay or starting capacitor is damaged. What is the fault of Gree air conditioner e6? Replace the signal link line of the internal and external units. The starter relay coil is disconnected and the contacts are seriously oxidized; the starter capacitor's internal open circuit, short circuit (current does not pass through the electrical appliances, directly connected to the two poles of the power supply) or a large drop in capacity will make the compressor motor unable to start operation, causing overload protection The air conditioner was activated due to overcurrent, and the power circuit was cut off, and the air conditioner could not start.

　　 Fifth, the thermostat (Thermostat) fails. The thermostat fails, the contacts cannot be closed, and the compressor circuit cannot be connected, so the compressor does not start.

The above is the reason why the central air conditioner in the office building does not respond when it is turned on. When the central air conditioner does not respond when turned on, we can replace the transformer (Transformer), the test machine is normal, and the fault can be eliminated. Gree air conditioner fault code e6 means your internal machine is too dirty. Turn off the main power, open the lower cover, take out the filter to clean, and clean the electrostatic precipitator with a brush.

I would also like to remind all the maintenance personnel; if there is no response when the whole machine is powered on, you should start with the power circuit first, so that you can quickly and accurately find the fault. Gree air conditioner fault code e6 means your internal machine is too dirty. Turn off the main power, open the lower cover, take out the filter to clean, and clean the electrostatic precipitator with a brush.