Odd Sounds, Unusual Odors, and Other Red Flags That Indicate It’s Time to Contact an HVAC Technician
Picture this: it’s a sub-zero evening in Wichita. The windchill is so intense it numbs the skin in seconds. Inside the cozy confines of your living room, you hear a loud popping, rattling sound from below. As you descend into your basement to investigate, the smell of sour smoke grows.
Your furnace is out. And it’s only a matter of time before the warmth in your home runs out, too.
This is just one example of an HVAC emergency. It’s the term we use to describe a sudden loss of heating or cooling that compromises your comfort and puts your safety at risk.
To help keep you and your family out of harm’s way, let’s explore the most common signs of an HVAC emergency.
Your HVAC Is Making Loud and Unusual Noises
Your HVAC system should run quietly with only a low hum from the fan or compressor. If you suddenly hear loud banging, screeching, rattling, or buzzing noises, it may indicate a severe issue, such as:
- Loose, worn, or broken system components.
- A faulty blower motor or damaged bearings.
- Electrical problems, such as bad wiring or a failing capacitor.
Contact a HVAC technician near you to inspect your system and diagnose the issue. A prompt response gives you a better chance of avoiding a complete system breakdown.
There Are Leaking Fluids Around the Unit
Puddles of water or other fluids around your HVAC system are a cause for concern, indicating:
- Water leaks caused by a clogged condensate drain or a frozen evaporator coil.
- Refrigerant leaks caused by wear, corrosion, or damaged parts.
- Gas leaks caused by dirty air filters, duct blockages, or a cracked heat exchanger.
Fluid leaks – specifically, refrigerant and gas leaks – are extremely dangerous and warrant HVAC emergency repair.
Your HVAC’s Airflow Is Reduced or Non-Existent
If your HVAC system is running, but you’re experiencing little to no airflow, something is wrong. Restricted airflow can cause uneven temperatures, high energy bills, and system strain, all of which can lead to system failure. Common causes of airflow issues include:
- Dirty filters that restrict airflow and overwork the system.
- Blower motor issues that prevent air from circulating.
- Blocked ducts or vents that obstruct airflow.
Your HVAC Is Cycling On and Off More Than Normal
Functional HVAC systems run in regular cycles to maintain stable temperatures. If your HVAC repeatedly turns off and on, also known as short cycling, it may indicate:
- Overheating components.
- Thermostat issues.
- Clogged filters or dirty coils.
Short cycling increases wear and tear on your system and can lead to higher energy bills and eventual breakdown. Call a HVAC contractor to diagnose the cycling issue and get a solution in place.
The Evaporator Coil Is Frozen
Ice buildup on your evaporator coil is a red flag that something is wrong with your air conditioner or heat pump. It’s typically caused by:
- Low refrigerant levels, which may indicate a leak.
- A dirty evaporator coil.
- A clogged or dirty air filter.
- A malfunctioning blower fan.
If left unchecked, ice formation can damage the compressor, leading to expensive repairs or system failure. Call a HVAC contractor near you the moment you notice ice buildup.
Your HVAC Is Producing Foul or Unusual Odors
Unpleasant smells coming from your HVAC system should never be ignored. Contact a HVAC technician if you notice a:
- Burning smell.
- Musty or moldy odor.
- Rotten egg smell.
Unusual smells may indicate an electrical issue, overheating components, mold buildup, or a natural gas leak. The only way to know for sure is by scheduling HVAC emergency repair.
Your Indoor Humidity Levels Have Increased
A properly functioning HVAC system controls indoor humidity levels. If your home feels sticky or clammy, it indicates your system isn’t properly dehumidifying or distributing air. HVAC humidity issues are typically caused by:
- Air conditioner malfunctions.
- Leaky ducts that allow humid outdoor air to mix with conditioned air.
- An improperly sized HVAC unit.
Contact an HVAC technician the moment you notice humidity problems. Delaying service can cause mold growth and poor air quality that’s harmful to breathe.
You Notice Inconsistent Temperatures Throughout Your Home
If some rooms feel too hot while others feel too cold, this indicates your HVAC system is struggling to maintain even heating or cooling. Inconsistent temperatures are typically caused by:
- Blocked or leaky ducts that prevent optimal airflow.
- A faulty thermostat that’s sending incorrect temperature readings.
- A HVAC system that is reaching the end of its lifespan.
When your HVAC system no longer delivers consistent comfort, you may need a repair or full replacement.
Your HVAC Is Having Electrical Issues
HVAC systems rely on electrical components, and any electrical issues can pose a fire risk. Signs of electrical trouble include:
- Frequent circuit breaker trips that may be a sign of an overload or short circuit.
- HVAC heating and cooling components that fail to start.
- A burning or plastic smell that signals overheating wires or faulty electrical components.
Turn off your system and call an HVAC technician if you notice these warning signs. Never ignore electrical issues, as they can cause fires or system failures.
Your HVAC System Has Failed
If your HVAC system won’t turn on at all, it’s a clear emergency that requires immediate attention. HVAC system failures are generally caused by:
- Delayed maintenance or repair.
- A blown fuse or tripped circuit breaker.
- Thermostat failure.
- Compressor or motor malfunction.
- Severe refrigerant leaks.
The quickest way to restore your system’s functionality is by scheduling HVAC emergency repair.
Experiencing a HVAC Emergency? Contact Fahnestock Today For Speedy Repair Services!
If you notice any of the red flags discussed in this blog, the worst thing you can do is wait. HVAC issues can quickly escalate, leading to higher repair costs and potential safety hazards.
You can minimize your expenses and discomfort by contacting Fahnestock for HVAC emergency repair. As a leading provider of HVAC services in the greater Wichita area, our North American Technician Excellence (NATE)-certified technicians are trained in diagnosing and resolving critical HVAC issues that put your home’s comfort at risk.
Schedule a same-day or next-day HVAC emergency repair appointment by calling (316) 943-4328.
