Common Problems and Solutions for Split ACs


Common central air conditioning problems occur when rooms are closed off and airflow throughout the house is disturbed. If you have a room air conditioner, then the problem is with the operation of the individual unit.

Split ACs are the most common type of air conditioner in the world and the problems you are experiencing may not be unique. First off, to ensure efficiency of cooling, one should closetheir home’s windows and exterior doors as much as possible to isolate the room & get the maximum possible cooling.

In this post, we’ll go over some of the most common problems with air conditioners and how to fix them.

1. Failure of Electric Controls

This is the most common failure. The compressor and fan controls can become worn out, especially if the air conditioner is turned on and off repeatedly, as is the case with an enormous system because the wire and terminal corrosion becomes an issue.

To start the unit, an electrical connection is made between the condenser fan motor, compressor, and blower motor. Due to a connection fault, the motor and compressor may not turn on.


You have to check the electric connections frequently after each service call to find the problem.

2. Sensor Issues

The temperature of the air entering the evaporator coil is measured by a thermostat sensor, which is located beneath the control panel of room air conditioners.

If the sensor is knocked out of place, the air conditioner may cycle continuously or perform erratically.


You can try to adjust the sensor’s position by carefully bending the wire close to but not touching the coil.

If you seek help then a specialist will be able to pinpoint the exact source of your air conditioning problems. An expert will be able to assess if the problem is more than just a sensor or thermostat issue, and will be able to do it without causing further harm to the air conditioner system.

3. Clogged Drains

Moisture can trap dust, grime, and other airborne particles at indoor airflow through the evaporator coil and as condensate flows from the coil, the debris can be taken away.

It can get stuck in your condensate drain line and cause a clog over time. During your annual maintenance tune-up, many professionals will inspect and eliminate debris from the AC condensate drain as a precautionary step. If you don’t perform this service regularly, you can have a clogging problem.

  • Standing water near the indoor unit is one of the signs of a clogged AC drain line.
  • A musty odour can be detected near your interior unit or in the air coming from the registers and vents.
  • Water damage somewhere near the internal unit.
  • The air conditioning system turns off or does not switch on.


You must make contact with the technician. The technician will clear dust from the drainpipe opening, among other things in your split air conditioner. Then he will use suction from a shop vacuum or wet vac to clean the clogged drain. Alternatively, they might clear the obstruction using a garden hose.

4. Filtering issues

A dirty filter is one of the most common causes of air conditioner failure. Replace your air filter according to the instructions provided by the manufacturer. Some are used once a month, some three times a year and others are reusable and should be cleaned as needed.


You can check if any light passes through a filter to see if it needs to be cleaned is one technique to detect. If not, then it is time to clean it immediately. Filters that are dirty not only restrict airflow but can also cause the air conditioner to freeze.

These are the most common issues that occur in the inverter air conditioner. Mostly, all of them will be resolved if you will maintain the servicing of the AC every 3-5 months.

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