In our last blog, we looked at the causes of a frozen air conditioner – a unit that is literally coated in solid ice. Today, we are going to go in the opposite direction. Maybe you start to feel uncomfortable in your home, and when you check out the air exiting the vents, you find why: the air is warm. But your air conditioner is running. What is going on?

There are several reasons why air conditioners fail to deliver cool air. Today, we are going to go over a few of the most common ones.

A refrigerant issue

This is the most common cause. It is tricky, because leaks rarely happen when or where you see them. By the time you feel the effects of the leak within your house, the leak will be gone, because the unit is empty. Leaks happen when a unit is badly assembled  or a valve leaks due to wear. The best way to prevent leaks is to have your air conditioner inspected each fall and summer. If you do have a refrigerant issue, call Valley Mechanical immediately. Refrigerant is dangerous and should only be handled by professionals.

A blown breaker switch

The power supply in your A/C unit is made to turn off when a bad breaker trips it. As a result, your unit won’t turn on. However, the air circulation system of your house will probably keep running. That means that air will keep flowing – it simply won’t be cooled by your unit any more. If the breaker keeps switching, it means that it can’t handle the power load of your air conditioner. Consult with an electrician as well as a technician from Valley Mechanical to fix the problem.

Contact us for premier HVAC maintenance in San Jose today!