HVAC Troubleshooting Basics That Every Homeowner Should Know

Here are six HVAC troubleshooting strategies that every homeowner should be aware of:

1. Lack of Power

Sometimes all it takes is a simple switch flick to get your HVAC system back up and running. Is your unit entirely dead, won’t turn on, or won’t turn on at all? It’s possible that a power surge triggered your circuit breaker, cutting off the power supply. If this is the case, all you need to do is reset the system to get it back up and running. Check the cord for any damage or fraying, since rodents or bugs may have eaten on it and disrupted the power supply.

Check the outlet if none of the preceding issues appear to be the source of the problem. Unplug the AC power cord and plug in another high-voltage item. If the appliance does not operate, the problem may be with the outlet; if it does, there may be a problem with the unit itself, such as a blown fuse or a broken motor, which necessitates the attention of an HVAC professional.

2. Defective Thermostat

Thermostats are generally dependable devices, but they might fail or require maintenance from time to time. A faulty thermostat is the root of many HVAC problems. Check the thermostat for power if your system isn’t beginning properly or won’t turn on at all.

Many thermostats run on batteries. When the batteries run out, they tend to malfunction and should work properly again when you replace the batteries. If a new set of batteries does not cure the problem, you may need to have a professional recalibrate your thermostat and repair its on/off and temperature reading functions.

3. Poor Airflow

Another common problem that affects both air conditioners and heaters is insufficient airflow, which occurs when the filters become clogged with dust and debris. Filth in the filters obstructs airflow, causing you to experience either warm or cold air coming from the unit.

You should clean and change your air filters every two to three months. Not only will this alleviate your airflow issues, but it will also enhance the efficiency of your HVAC system and the air quality in your home.

Also, remember to inspect your HVAC system’s external unit on a regular basis. Clear the surrounding area of clutter and remove fallen leaves, branches, and other material that can restrict or block the unit’s airways.

4. Quick Cycling

When airflow is restricted, your HVAC unit may undergo short cycling, leading it to shut down before the heating or cooling cycle is complete. Most of the time, cleaning or replacing the air filter will cure the problem.

Frozen coils are another possible reason for brief cycling. Examine the evaporator coils, which are often found in the air handler. Turn off the unit to allow the coils to thaw if they have ice or frost on them.

If neither of the first two causes the problem, a malfunctioning thermostat that fails to read the correct temperature could be to blame. This is frequently the case when the accommodation does not appear to meet your intended comfort levels. Because of the more sophisticated nature of this particular challenge, it is advised to delegate the task to experts.

5. Unpleasant Odors

If you notice strange odors coming from your furnace or air conditioner, respond quickly since it could be mold or burnt wiring, both of which are equally harmful.

Molds are the most common cause of nasty HVAC scents, and they can be dangerous to your health. Check for any leaks in your HVAC unit and seal them off if mold growth is anticipated. This will keep water from leaking into your property and creating dampness, which is great for mold growth.

If the stink is caused by burnt wiring and electrical connections, contact an electrician quickly to resolve the issue and avoid any potentially dangerous situations.

6. Disturbing Noises

Is your air conditioner creating excessive noise? Then begin your investigation with the fan motor, which is in charge of blowing cool air into the ductwork and hot air out of the house.

Damaged fans can begin to make a lot of noise that is difficult to ignore. However, even trapped dust and debris can cause fans to be noisier than usual. If the latter is the case, cleaning your unit may help lessen or eliminate the noise. The problem is that it’s not always easy to figure out where your unit’s noises are coming from or what’s producing them. Request that an HVAC technician inspect and repair the unit to ensure that proper repairs are completed and that further damage is avoided.

When in Doubt, Call the Professionals!

The majority of these fundamental HVAC troubleshooting tips are simple to implement. If you’re unsure what to do, you may always contact your local HVAC provider for assistance.