We’ll cut to the quick: Yes, something is wrong with your central air conditioning system if you notice ice forming on its coil. If this was your first instinct, then you’re thinking along the right lines. People often dismiss the appearance of ice on an air conditioner as a sign that the system is perhaps working a bit too well. The air coming out of the AC is cool, so why wouldn’t ice be part of the process?
But as you may already know, an air conditioner doesn’t use ice to cool down the air it sends into a home. What it actually does is remove heat from inside the house and release it outside, a process called heat exchange. If the air conditioner is working correctly, no ice should develop during this absorption and release of heat.
You’ve had your air conditioner running steadily for a few months at this point, so you’ve already had a chance to see what your summer utility bills look like. Have they been noticeably higher this month? As we’ve pointed out before, 
The biggest debate in the HVAC world is whether a piece of equipment should be repaired or replaced when it breaks down. Sometimes repairs are the easier and less expensive method; but there are times when repairs are throwing good money after bad, and the better long-term solution is to have a new installation done.
When it’s time to replace a 
Summer is almost here! Although this is one of the most popular seasons of the year, the perfect time to go on vacation, have cook-outs, or watch big-budget movies, it’s also a time when you must make sure you have a home air conditioning system ready to handle temperatures that can rise into the 90s.