A mistake that homeowners often make about the way their air conditioning systems work is to assume that ice appearing along the indoor evaporator coil is normal, just a sign the AC is working extremely well at cooling down the air.
The truth is that ice should never appear on any part of an air conditioner. When ice appears along the evaporator coil, it means something is interfering with the standard way the air conditioner operates. The ice creates a major problem on its own, but the source of the ice forming may be an even worse problem.
There are different ways an air conditioning system can stop working. Sometimes the blower will turn on and send air to the room vents, but that air won’t be cool. Or the AC could keep shutting off after only running for a few minutes. But the most alarming problem for a homeowner—because it’s so immediately clear there’s trouble—is when the AC won’t blow out any air at all. Nothing comes out of the room vents, hot, cold, or otherwise.
We talk a lot about what you’re supposed to do as a homeowner for your air conditioner—but we rarely ever talk about what you shouldn’t do. These guides can be helpful because they steer the more DIY savvy homeowner from making a serious mistake that could cost them in expensive repairs. That’s exactly what could result from trying to work on your own air conditioner!
One of the most common signs of something wrong with a central air conditioning system is short-cycling. This is when an air conditioner fails to complete a full cooling cycle and instead shuts down early, only to turn back on again a short time later. Short-cycling is bad news for a few reasons:
As an 
Whenever an air conditioning system abruptly shuts down—the fan won’t come on, the compressor won’t come on—one of the first things we recommend homeowners check is their electrical panel. A tripped circuit breaker might have caused the air conditioning system to lose power. Resetting the breaker may solve the problem.
Yes, you should be worried! But you can stop worrying quickly, because all you have to do is contact our HVAC specialists, any day of the week, and we’ll have technicians out to your home to find out what’s wrong with your air conditioning system. Then we’ll have the problem solved, fast.