Fireplaces are reliable when properly maintained, but over time even well-built systems can develop problems. Some issues are minor inconveniences, while others can pose serious safety risks if ignored.
This guide covers the most common fireplace problems, what typically causes them, and when it’s time to call a professional—especially for homeowners in the Dallas–Fort Worth, TX area.
1. Pilot Light Won’t Stay Lit
One of the most common gas fireplace issues is a pilot light that repeatedly goes out.
Possible causes include:
- Dirty or failing thermocouple
- Drafts affecting the pilot flame
- Improper gas pressure
- Aging pilot assembly
If the pilot won’t stay lit without holding the control knob, professional diagnosis is recommended.
2. Fireplace Turns On, Then Shuts Off
If your fireplace starts normally but shuts off shortly after, it’s often a safety-related shutdown.
Common causes include:
- Faulty thermopile or safety sensor
- Venting or airflow issues
- Overheating protection being triggered
- Gas valve problems
This issue should not be ignored, as repeated shutdowns can indicate a deeper problem.
3. Weak, Uneven, or Abnormal Flames
Flame appearance is a strong indicator of fireplace health.
Potential causes include:
- Dirty burner ports
- Improper log placement
- Clogged airflow passages
- Incorrect air-to-gas ratio
Flames should appear steady and consistent. Flickering, uneven, or unusually colored flames warrant inspection.
4. Soot Buildup on Logs or Glass
Black soot is a sign of incomplete combustion and should never be considered normal.
Common reasons for soot include:
- Logs placed incorrectly
- Dirty burners
- Venting problems
- Incompatible log sets
Over time, soot buildup can damage components and affect indoor air quality.
5. Gas Smell Near the Fireplace
A gas odor is always a serious concern.
Possible causes include:
- Loose gas connections
- Faulty gas valve
- Cracked gas line
- Improper installation
If you smell gas, turn off the fireplace immediately and contact a professional before using it again.
6. Fireplace Won’t Ignite at All
If the fireplace doesn’t respond when turned on, the issue may involve the ignition system.
Potential causes include:
- Faulty ignition switch or module
- Dead batteries in remotes or wall controls
- Gas supply issues
- Failed pilot or igniter
Simple checks can rule out battery or switch issues, but internal diagnostics should be left to professionals.
7. Cracked Firebox or Damaged Masonry
Wood-burning and masonry fireplaces commonly develop cracks over time.
Causes include:
- Heat expansion and contraction
- Moisture intrusion
- Age-related wear
- Lack of routine maintenance
Cracks in the firebox or mortar joints can allow heat to escape into surrounding structures, creating fire hazards.
8. Smoke Entering the Home
Smoke backing into the room is a sign of drafting or ventilation problems.
Possible causes include:
- Chimney blockages
- Damaged flue liner
- Improper damper operation
- Negative air pressure in the home
Smoke issues should be addressed immediately to prevent health risks.
Can You Fix Fireplace Problems Yourself?
Homeowners can safely:
- Replace remote or wall-switch batteries
- Ensure the gas shutoff valve is open
- Keep the area around the fireplace clear
However, gas components, chimney systems, and structural repairs should never be DIY projects. Improper repairs can create serious safety hazards.
Fireplace Repair & Diagnosis in Dallas–Fort Worth, TX
Fireplaces in North Texas experience seasonal use, humidity, and long periods of inactivity, all of which contribute to wear and unexpected issues.
At Fireworx Fireplace & Chimney, we provide professional fireplace diagnostics and repairs designed to identify the root cause—not just the symptom.
We proudly serve Dallas, Fort Worth, Plano, McKinney, Denton, Frisco, and surrounding DFW communities, offering:
- Fireplace inspections
- Gas fireplace troubleshooting
- Chimney sweeping and inspection
- Fireplace and chimney repairs
- Upgrading your fireplace
- Fireplace installation
- Safety and efficiency evaluations
How Often Should Fireplaces Be Inspected?
Most fireplaces should be professionally inspected once per year, even if no issues are noticeable. Regular inspections help catch small problems before they become costly or dangerous.
Don’t Ignore a Fireplace Problem!
If your fireplace isn’t working the way it should, ignoring the problem can lead to safety risks or expensive repairs. Professional diagnosis ensures issues are resolved correctly the first time.
Fireworx Fireplace & Chimney provides expert fireplace inspections and repairs throughout the Dallas–Fort Worth, TX area. Schedule your service today and get peace of mind before your next fire.
