Both the United States and Europe are facing historic heat waves. With humidity taken into account, the real feel is up to 110 degrees Fahrenheit in many areas of the country.
This type of heat places a significant burden on your air conditioning system. Record-high temperatures mean that your AC is running all day trying to meet the thermostat’s demand.
A true nightmare situation is when your AC does not power on in this kind of heat. Read on to answer why won’t my HVAC turn on. Explore the five most common reasons why the HVAC won’t turn on and HVAC tips to help you get through the summer.
1. Check the Power
The first thing that you should do is check the power to the air conditioner. Summer heat places a significant burden on your home’s energy demands.
The air conditioner is trying to keep the house cool while other power consumers such as pool filters are running simultaneously. If the circuit is overloaded, it will trip a breaker and shut the power off to the AC.
You should also check for a blown fuse. Replacing the fuse will get your AC back online.
2. Thermostat
The thermostat sends a signal to the air conditioner to turn on and off. If the thermostat is not functioning properly, the HVAC system may not turn on.
In many cases, it is as simple as replacing the thermostat’s batteries. Other cases require replacing the thermostat altogether, but this is still an easy repair.
3. Clogged Condensate Line
Your HVAC system turns humidity into condensation. It then uses a drain line to purge that condensation from the unit, often routing it outdoors.
Without regular maintenance, the condensate line can get clogged with dirt and debris. Once it is backed up, water leaks from the AC unit.
Many AC systems are equipped with a floating device or safety switch. When a leak is detected, the unit automatically shuts off for safety reasons.
4. Faulty HVAC
There could be other damaged or non-functional components within the HVAC system. When components such as the circuit board fail, the unit will no longer turn on.
If this is the case, you need to enlist professional HVAC service. A licensed and experienced HVAC technician can diagnose the issue. Next, they will draw up a price quote for repair and get your authorization to proceed with the fix.
5. Clogged Air Filter
Replacing your air filter frequently is a critical maintenance step. If you fail to do this, the filter gets clogged and airflow is blocked.
The result of this is that AC coils freeze over. If the ice gets thick enough on the coils, the unit will no longer turn on.
Why Won’t My HVAC Turn On? Five Common Reasons
You now have an idea why your HVAC system is not running properly. It could be an easy fix like changing out thermostat batteries or resetting the circuit breaker.
There are other more complex repairs that require a professional touch. If you are wondering why won’t my HVAC turn on, contact us today to speak with a professional.
