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Servicing Aircon Compressor Problems
Identify and Rectify Your Aircon Problems!
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NUMBER OF AIR CONDITIONER Units
1 Fan coil
2 Fan coils
3 Fan coils
4 Fan coils
5 Fan coils
6+ Fan coils
Issues with Aircon Compressor
Before diagnosing the problem, it is very important to know the very function of what a compressor does in the system process. This part of the air cooling system is considered to be the heart of the cooling process. Basically, it squeezes the refrigerant which increases the temperature that eventually escapes the compressor compartment as a high pressure gas. The compressor then introduces the hot gas into the outdoor unit, which in return causes it to blow cool air outside through the coil fins. Any disruption from this process will really manifest problems in the cooling output of the air condition system.
Understanding its function shows us the very vital role of the compressor in the cooling process, so without it functioning well, no cool air is produced. Whenever air conditioners experience trouble in its cooling process, one of the very first suspected causes by technicians to be inspected is the compressor. A lot of problems actually stem from the problems coming from compressors. The complexity of the problems relating to the compressor is difficult to fix if you are not a trained HVAC technician like the ones we have at Oasis.
So if you are certain that the compressor is really the problem, then calling a trained professional for aircon services is very important.
Checking for Signs of an Aircon Compressor Issue
- Temperature performance
Compression function is very related to the AC refrigeration process inside the system unit. A step to diagnosing the cooling performance is to record temperature. This system check will help detect the problem that is not observed in regular operating hours. It is then evaluated given that it is within same factors all throughout the recording process, that AC temperature has minimal variations. To be able to record accurate temperatures, it is recommended to use a digital recording thermometer that will represent both minimum and maximum temperatures in the recording process.
- Test the Compressor Valve
Another way to evaluate faulty compressor is to investigate the performance of its valve. The valve of the compressor could contribute to the problem and may be fixed to solve it. A module is used to be inserted in the DMM of the compressor to assess the pressure. This is inserted through the suction line port, then closing the compressor from the system to be run for 2 minutes. The compressor is then turned off then the reading is observed. Ideally, the compressor should be pulling off at 15inches of the Hg, reading less than that number would mean the need to replace the compressor valves.
- Check Compressor bearings
There is a tendency where the bearings on the compressor will eventually fail when poor piping was done during installation or maintenance. This will lead to clogging of the unit which results to insufficient oil in the compressor. This can be diagnosed by measuring the compressor amps and should not go beyond the number being indicated in the manufacturer’s ratings. Defected compressor bearing will give a higher than the normal rating of amps.
Solutions to Aircon Compressor Problems
- Check the valves
Gas may leak from the different parts of the system and that is why it is very important to know where it is to be able to properly remedy the problem. First is to check the valve if it is properly attached and it should also be checked for cleanliness. This could be a problem that is being overlooked and if the problem persists then the valve needs to be replaced. This can be done by simply removing the valves and replacing them with brand new ones.
- Inspect the Tubing
Another area to take notice from the gas leaking is the tubing found in the AC unit. If there are presence of holes then proper soldering of the line is needed to be done. This process will require the use of a high temperature torch that will help repair the source of leak. The first thing to do is visually locate the crack that is causing the problem and assess the size of the cracks. If the crack is visibly small then soldering the line should be necessary. If the size of the hole is large, it is advised to cut the area of the line and replace it with a new portion of line to be soldered in place.
- Refill Coolant
It is important to understand that replacing the coolant without sealing the areas with cracks will only be an ongoing cycle of repair. Before filling in the coolant, make sure that the holes and cracks from the lines are being repaired to avoid gas leaking. After it is being repaired, the unit should be recharged with a new coolant to replenish it from the leak that escaped the system. Exact amount of the coolant should be placed as this would affect the cooling performance of the AC unit.
Other Problems: Problems with Condenser