Common HVAC Emergencies and How to Handle Them Until Help Arrives

When the air conditioner blows warm air, it is a sign of a problem. First, check the thermostat to make sure it is set to "cool." Then, inspect the air filter. A dirty air filter can block airflow and cause the system to work harder. If the filter is clogged, replace it. Checking the circuit breaker to ensure it has not tripped is also important. If none of these steps work, it is best to turn off the unit and wait for help.

A furnace that isn’t heating can make your home very cold, especially in the winter. The first thing to do is check the thermostat and make sure it’s set to "heat." If the setting is correct, check the furnace filter. A dirty filter can reduce airflow and cause the furnace to shut down. If the filter looks clean, check the pilot light. Certain furnaces rely on a pilot light to ignite the gas. If it’s out, you may need to relight it, but only if you feel comfortable doing so. If not, call a trusted HVAC professional for help.

Water leaking from your HVAC system is a common issue, especially with air conditioners. It usually happens because of a clogged drain line. You can try to clear the drain line with a small amount of bleach or by using a wet vacuum. However, it is important not to open any parts of the system that you are not familiar with. Turn off the unit if you see water leaking, and call a technician.

Loud or strange noises from your HVAC system can be alarming. These noises could be due to loose parts, broken belts, or issues with the motor. If you hear banging, clanging, or screeching sounds, turn off the system to avoid more damage. Do not try to fix it yourself. Call a technician to inspect the system and fix the problem. Continuing to run the system can make the situation worse.

Short cycling occurs when your HVAC unit frequently turns on and off. This problem can be caused by an oversized unit, a dirty air filter, or a thermostat issue. Check the filter and the thermostat first. If everything looks fine, the system may need professional attention. Short cycling puts extra stress on the HVAC unit, which can lead to higher energy bills and more frequent repairs. It is best to turn off the system and call a technician if the problem continues.