Analysis and Handling of Common Faults of Liftop Elevator Air Conditioners

With the acceleration of people's life pace, elevators have become the choice of more and more people. Especially, the requirements for the comfort of elevators are also increasing day by day. As a result, elevator air conditioners, which are specifically designed for elevator cars and to improve the comfort inside the cars, have attracted more attention.

However, during the daily use of air conditioners, some common minor malfunctions may occur to a greater or lesser extent. As a complex electrical appliance, elevator air conditioners are now known very little by many people. Here is a brief description of the common faults of elevator air conditioners that can be handled independently, as follows:

Cause of occurrence:

1. Should the machine be shut down?

2. Is the power plug on the roof of the car properly inserted or has it come loose?

3. Is the power switch in the computer room turned off?

4. Is the voltage normal? (198V~2042V)

5. Is the remote control set to turn on and off at a scheduled time?

6. Does the power supply overheat or the wire protection sleeve break?

Cause of occurrence:

1. Should the machine be shut down?

2. Is the power plug on the roof of the car properly inserted or has it come loose?

3. Is the power switch in the computer room turned off?

4. Is the voltage normal? (198V~2042V)

5. Is the remote control set to turn on and off at a scheduled time?

6. Does the power supply overheat or the wire protection sleeve break?

Cause of occurrence:

Is the power supply voltage stable?

2. Is it set to dehumidification mode?

3. Is there too much dust accumulated in the evaporator and condenser of the air conditioner? The overheat protection of the compressor is activated, causing it to automatically shut down. After a delay of 5 to 10 minutes, it is restarted, which leads to frequent starts and stops of the compressor.

4. Has the temperature of the car reached the set temperature on the remote control?

Cause of occurrence:

1. Check if the battery voltage of the remote control is sufficient? Otherwise, a new battery needs to be replaced.

2. Whether the air conditioner is receiving abnormal signals. At this point, just cut off the power supply and restore it. Then normal operation can be resumed.

Cause of occurrence:

1. Is insulation cotton attached to the air outlet of the air conditioner and is the heat insulation treatment in place?

2. Is the air conditioner level?

3. Has the position of the air outlet pipe or return pipe of the air conditioner been moved?

4. When the air conditioner is cooling, sometimes mist-like cold air may come out from the air outlet. This is due to the rapid cooling of the air in the car caused by the exchange of heat and cold. Adding insulation at the junction of the air outlet can solve the problem.

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Are the copper tubes inside the air conditioner crooked?

5. Are the internal axial flow fan blades damaged?

Through the above specific analysis and inspection of the causes of common fault phenomena in elevator air conditioners, corresponding self-troubleshooting methods can be obtained.

Of course, what has been mentioned above can only reflect a certain local state. This is because all parts of an air conditioner influence and are interrelated. That is to say, one fault phenomenon may have multiple fault causes, and one fault cause may also lead to multiple air conditioner faults. Therefore, this requires everyone to conduct a detailed and comprehensive analysis of various fault factors and make more comparisons when dealing with problems. It is necessary to carefully observe the working conditions of each system part of the air conditioner, listen carefully to the running sounds of the compressor and fan when the air conditioner is running, and when necessary, use relevant instruments to check the relevant performance parameters and status of the air conditioner, etc. Only in this way can the nature and specific location of the air conditioner malfunction be accurately determined, and ultimately the malfunction problem of the elevator air conditioner be solved.