Very few people understand how much desperation arises when an AC unit unexpectedly breaks down while living in consistently hot places like Southern California. That desperation and desire for the AC to simply “just work” can spur the desire for an impromptu DIY fix.
However, even on the hottest days, sometimes the best idea is to wait for a professional. These are some of the AC and HVAC issues you should never try to fix yourself.
Poor Airflow Issues
A lack of airflow can lead to a very uncomfortable situation. Poor airflow can be caused by a variety of different causes. Unless you have prior training, the only thing you should do in this situation is inspect.
First, see if anyone has closed the ductwork dampers and inspect the filter. A dirty filter can prohibit airflow, which is exactly what you want on a hot and dry Los Angeles evening. If the filter is not the issue, then you will need to elicit the services of a professional to fix a frozen coil, faulty blower motor, or improperly sized ductwork.
Clogged Filters
Leaving an air filter in a HVAC system for too long will inevitably cause it to become so thick with dirt that it will restrict airflow to the HVAC system. A dirty filter can cause the entire system to seize up, which would lead to a very costly fix. The best thing you can do is schedule a filter change every three months or so to avoid this issue.
Cold Air During Heating Mode
When cold air is being emitted during heating mode, it is a sign of a serious problem, such as a bad reversing valve, low refrigerant levels, or a failed compressor. Call a professional and wait it out.
Blown Fuse
Another tricky problem that should be reserved for experts is a blown fuse on an AC system can be due to a faulty capacitor on the compressor or a condenser motor with a leaky capacitor. The problem can also originate at the fuse box.
Because the diagnosis is so tricky, it is better to call an expert HVAC technician who understands the complexity of electrical problems within AC units.
Refrigerant Leaks
This is a particularly challenging issue for a novice to diagnose. When a refrigerant leaks, there can be a hissing noise originating from the outdoor refrigerant lines. Occasionally, a dip in system proficiency can result in low refrigerant levels.
When this happens, it is time contact a professional. Refrigerant is very harmful to your health and the environment. Only certified professionals are equipped to handle the material, and you should never try to handle it yourself.
Those involved in the hustle and bustle of hot Los Angeles and Southern California summers want nothing more than to come home to a nice cool, dry home after a long day. Now that AC units have enabled that to become a reality, it is important that, along with your regular routine, you schedule regular check-ups and maintenance updates to your HVAC system.
It may seem like a nuisance at first, but it will save you time and money, which is what everyone is looking for.