When your heating and cooling system malfunctions, it never happens at a convenient time.
You are left to compete with electric bills that are so high, with strange sounds in your vents, and rooms that feel extremely hot, and others are icy cold.
It usually happens because the thermostat’s working up, parts inside are filthy, or the unit’s not the right size for your house.
We’ll guide you through the 5 issues we encounter most frequently, explain what you can do about them immediately, and tell you when it’s time to call an HVAC technician.
Problem 1: HVAC System Won’t Turn On
There is nothing more frustrating than cranking up your thermostat and nothing happens, no sound, no cool air, only silence. Don’t freak out nor start shopping for a new system.
Maybe the thermostat batteries are dead, or the settings got switched around. Double-check if you’re set to heat or cool, and make sure the basics are right before you assume the worst.
- The cause of the problem is dead batteries in your thermostat or an inappropriate setting, or an incorrect setting for heating or cooling.
- The circuit breaker could have tripped and killed power to the air conditioner.
- Your condenser outside the disconnect switch can be switched off.
- The entire HVAC system can even shut down due to a really dirty air filter.
- Try switching the breaker off, wait about 30 seconds, then switch it back on.
- Once you have done all that and there is no response, then call a licensed HVAC contractor.
Problem 2: Weak Airflow from Vents
You know that feeling when you put your hand up to a vent and barely feel any air. Your system is working hard, but your home stays uncomfortable. Start simple and swap out that air filter first because a clogged one blocks airflow to your air handler every time.
Sometimes weak airflow means bigger trouble that you can’t fix with a new filter. A dying blower motor, your refrigerant running low, holes in ductwork you can’t see, or your HVAC system is too small for your house. Proper airflow keeps your heating and cooling efficient and your energy bills reasonable all-year long.
Problem 3: The HVAC System Keeps Running or Won’t Stop
A significant indication of trouble is an air conditioner or heater that continuously runs without shutting off, it just keeps operating nonstop. It causes your system to wear out faster than normal, and your energy costs are soaring. The issue usually stems from a thermostat, unclean internal parts, or an oversized HVAC unit for your home.
Problem 4: Strange Noises Coming from Your HVAC System
There shouldn’t be much noise if your heating and cooling system is operating properly. However, if you begin to hear strange noises, then there’s a problem.
You can tighten up loose panels yourself or pull debris out of your outdoor unit without any problems, but anything involving your blower motor, refrigerant leaks, a failing compressor, or electrical stuff would need a call to a professional HVAC company right away.
If you ignore these warning sounds, that small repair issue turns into a massive emergency, HVAC service bill will come real fast, and if something sounds really wrong or dangerous, shut the whole system down until help arrives.
Problem 5: Uneven Heating or Cooling Throughout Your Home
If you are noticing uneven heating or cooling in your home, it is often due to some serious issues with your HVAC system.
Here are some steps you can take:
- Go through your home and verify that each vent is fully open.
- Inspect your air filter since a clogged one disrupts airflow to rooms.
- Shut the shades in rooms that receive a lot of sunlight throughout the day.
- Inspect your attic and walls for insulation since poor insulation poses an issue.
- Certain homes include dampers within the duct system that you can modify to achieve balance.
How Regular HVAC Maintenance Prevents These Common Problems
By maintaining your system, you can avoid the majority of HVAC difficulties. Every month or two, replace your air filter. You could extend it to 3 months if your house is neat and you don’t have any pets, but don’t go overboard.
Get your furnace inspected before winter arrives, while before summer arrives, do the same for your air conditioner. In this manner, you won’t be in a panic when the weather changes.
Check your outside condenser coil from time to time. It makes a difference to remove any accumulated leaves, dirt, or trash. Get an expert to inspect the electrical connections as well. Bring a licensed HVAC expert once a year to inspect for leaks and ensure that the air is flowing as it should.
Frequently Asked Questions (FAQs)
To avoid HVAC issues, how frequently should I replace my air filter?
Every 1-3 months, most houses require a new filter. If you have allergies or pets, alter it every month. A dirty filter mostly causes breakdowns.
Can my HVAC system truly malfunction due to a dirty air filter?
Your air handler cannot receive any air when that filter becomes clogged with dust.
Why does my central air conditioning freeze up in the summer heat?
Usually, it’s low refrigerant, terrible airflow from a clogged filter, or your blower motor giving up. See ice on your evaporator coil, then turn everything off and get a licensed HVAC contractor out there.
Is it normal for my furnace to make clicking sounds at startup?
A couple of clicks when it fires up is totally fine. But if it’s clicking constantly, you’ve got electrical problems that need fixing yesterday.
What is contained in a yearly check-up of the HVAC system provided by a licensed HVAC contractor?
They will clean your condenser coil, fill your refrigerant where necessary, check your thermostat, check all the electricals, grease your blower motor, and check your ductwork leaks.
Contact Rite Rate Plumbing, Heating & Air Conditioning to Get Expert HVAC Services
If you are facing serious issues with your HVAC system, don’t try to fix gas furnace controls, electrical components, or anything involving refrigerant in your compressor yourself.
Our experts offer emergency HVAC services when your heat dies in January or your AC quits in August. Contact us today!