Routine diagnosis method of air conditioner fault

Air conditioning fault (fault) routine diagnosis (diagnosis) method

Once the household air conditioner has a fault (fault), the user can first perform a routine diagnosis (diagnosis) in order to resume use. If you still can't resume normal use, you should ask professional maintenance and repair personnel to repair the air conditioner. Don't do it by yourself to avoid dangerous accidents. Air conditioning repair

When the air conditioner cannot run

First, check whether the power supply is powered and whether the voltage range (fàn wéi) is within 220V±10%; then check whether the battery in the remote control is powered (you can observe whether the LCD display is clear); then look at the setting parameters ( parameter) is correct, such as operating status, temple temperature, etc.; then check whether there is electromagnetic interference near the internal unit. Central air-conditioning installation The terminal equipment of the central air-conditioning is a fan coil unit. Whether it is exposed or concealed, first determine the fan coil. The position of the pipe, the position of the air outlet, and the position of the return air outlet. When determining the location and direction of the pipe, the closest, the fewer detours, the better, and the connection to the main pipe is complete. Install hoses, valves, solenoid valves at the inlet and outlet of the fan coil, and see the drawing requirements for the filter. If the air outlet is far away from the machine, add a wind pipe (the outlet pipe needs to be insulated) and a soft canvas connection. Shanghai Central Air Conditioning Project

When the air conditioner is dripping or leaking

First, check whether the drain pipe is twisted, flattened, or broken; the second is to see whether the outlet of the drain is immersed in water, and the correct one should be exposed on the water; the third is to see whether the indoor and outdoor connecting pipes are completely wrapped and whether there are exposed parts. If there is condensation on the indoor copper pipe, it can be wrapped with a material with good heat insulation performance.

When the cooling capacity of the air conditioner is insufficient

Check whether the door and windows are closed tightly and whether there are new heat sources such as personnel and electrical appliances in the room; then check whether the filter mesh is clean and whether the indoor and outdoor air inlets and outlets are unobstructed; the third is to see the setting parameters ( parameter) is correct; the fourth is whether the heat exchange condition of the outdoor unit is good, whether it is exposed to direct sunlight, whether it is affected by the influence of other air-conditioning external units (influence), etc. Shanghai air conditioning design