For conventional refrigerant air conditioning units, the function of Freon is so vital and so crucial! Therefore, a small Freon leak will make the unit cannot cool the air powerfully! Repairing air conditioner Freon leak can be finished & solved with DIY guide. But remember this DIY home project is usually difficult, especially for a beginner. The difficulty is also dependent on the leakage level of your unit! But if you are not sure to handle this project by yourself then it is better to contact and hire a professional technician to solve this problem properly. But if you want to know and learn more about this issue, below are pieces of helpful information for you.
You should know that today most of newer air conditioners are no longer to use Freon technology. There are now available several friendly air cooling technologies. This progress is purposed to respond the bad effect of using Freon which can lead to the Ozone depletion. Some of those alternative friendly choices are R410a refrigerant (it is nominated to replace the crucial function of Freon in air conditioning technology), evaporative cooler technology (geothermal heating and air conditioning, etc. Well, let’s back to topic, the following are several basic procedures that you can use to investigate & repair a window air conditioner Freon leak:
- Prepare some basic tools; (a) Compound or leak sealant, (b) water hose, (c) screwdriver, and (d) spray nozzle.
- Uninstall the unit carefully! Remove the window AC unit from the window. Take a look at a hard surface (such as concrete or wood) and then place the unit over it. Note; avoid placing the unit on unstable ground surface, such as an earth surface that has a lot of dirt and leaves.
- Take a look at the outer cover of the unit and then remove it properly! For this step you can use a screwdriver that has been prepared before to unscrew all screws of the cover. Make sure you take off the outer housing of the unit properly and completely. Then you should locate the housing cover to the side in order to ensure it’ll not be damaged by any screws that you released!
- Before considering the Freon leak, it is better to check any bacteria or debris from the drain tray (check also any debris that accumulated near the vent coils). Use spray nozzle & water hose to remove all debris clearly and completely.
- Now it is time to address the Freon leak! First, consider any filters inside of the unit, remove them properly.
- Then take check the air conditioning compressor. Scan it carefully in order to find any Freon leaks (especially for the suction line)! There are usually available two refrigerant lines, one has larger diameter than the other one, and this larger line is usually the suction line. For better result you can check both lines.
- Once you find the leaks, use a stop leak compound or sealant that you have prepared before (you can buy it in a local auto supply store)! It must be applied properly, therefore read the procedure on how to use it properly first, this instruction usually can be found on the can!
- Now replace and install the cover back properly on the front of the unit. Then reinstall your window air conditioner. Now test the unit! Consider if there are any leaks or not! Observe also about any potential further leaks. On other hand, if the unit continues to leak, take off the cover & use a leak sealant again to spray the inside! If this DIY guide cannot solve the problem, you have to call & hire a qualified & professional repair technician to service your unit properly!
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Read also; more about windowless AC units and why you unit produce hot air?