This is why changing filters are important (see image). This coil being dirty caused them system to freeze up.
You might be surprised to know that the indoor air we breathe is actually more polluted than outdoor air. Why does this matter? Because your air conditioning has to work that much harder when filters are dirty.
Your Air Conditioning systems air filters should be changed on a regular basis to keep your system running smoothly. An HVAC system that worker harder than necessary is costing you money!
No to mention that a clean filter reduces the pollutants and contaminants in your home such as dusts, molds, and pollens.
So do yourself, your lungs, and your pocketbook a favor and don’t forget to change your filters.